./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ebd41074 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-counter-fun.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 fbe9f324c9eba6beb8c990e3f85f0b00a68548fe05ffdb4e97bc061354d1cdf2 --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-24 02:57:21,025 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-24 02:57:21,100 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-24 02:57:21,104 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-24 02:57:21,105 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-24 02:57:21,117 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-24 02:57:21,118 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-24 02:57:21,118 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-24 02:57:21,118 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-24 02:57:21,118 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-24 02:57:21,118 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-24 02:57:21,118 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-24 02:57:21,118 INFO L153 SettingsManager]: * Use SBE=true [2025-01-24 02:57:21,118 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-24 02:57:21,118 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-24 02:57:21,118 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-24 02:57:21,118 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-24 02:57:21,119 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-24 02:57:21,119 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-24 02:57:21,119 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-24 02:57:21,119 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-24 02:57:21,119 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-24 02:57:21,119 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-24 02:57:21,119 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-24 02:57:21,119 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-24 02:57:21,119 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-24 02:57:21,119 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-24 02:57:21,119 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-24 02:57:21,119 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-24 02:57:21,119 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-24 02:57:21,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-24 02:57:21,119 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-24 02:57:21,119 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-24 02:57:21,119 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-24 02:57:21,119 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-24 02:57:21,119 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-24 02:57:21,120 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-24 02:57:21,120 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-24 02:57:21,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-24 02:57:21,120 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-24 02:57:21,120 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-24 02:57:21,120 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-24 02:57:21,120 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-24 02:57:21,120 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 -> fbe9f324c9eba6beb8c990e3f85f0b00a68548fe05ffdb4e97bc061354d1cdf2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2025-01-24 02:57:21,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-24 02:57:21,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-24 02:57:21,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-24 02:57:21,335 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-24 02:57:21,335 INFO L274 PluginConnector]: CDTParser initialized [2025-01-24 02:57:21,336 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c [2025-01-24 02:57:22,461 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/471ae6743/54639aa24fd74fbab6bef5c6a9e1d4c8/FLAG28e496f91 [2025-01-24 02:57:22,660 INFO L384 CDTParser]: Found 1 translation units. [2025-01-24 02:57:22,662 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c [2025-01-24 02:57:22,668 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/471ae6743/54639aa24fd74fbab6bef5c6a9e1d4c8/FLAG28e496f91 [2025-01-24 02:57:22,683 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/471ae6743/54639aa24fd74fbab6bef5c6a9e1d4c8 [2025-01-24 02:57:22,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-24 02:57:22,687 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-24 02:57:22,688 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-24 02:57:22,688 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-24 02:57:22,691 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-24 02:57:22,691 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 02:57:22" (1/1) ... [2025-01-24 02:57:22,692 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cd82cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:57:22, skipping insertion in model container [2025-01-24 02:57:22,692 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 02:57:22" (1/1) ... [2025-01-24 02:57:22,704 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-24 02:57:22,827 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c[2707,2720] [2025-01-24 02:57:22,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-24 02:57:22,842 INFO L200 MainTranslator]: Completed pre-run [2025-01-24 02:57:22,891 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c[2707,2720] [2025-01-24 02:57:22,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-24 02:57:22,906 INFO L204 MainTranslator]: Completed translation [2025-01-24 02:57:22,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:57:22 WrapperNode [2025-01-24 02:57:22,908 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-24 02:57:22,909 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-24 02:57:22,909 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-24 02:57:22,909 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-24 02:57:22,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:57:22" (1/1) ... [2025-01-24 02:57:22,918 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:57:22" (1/1) ... [2025-01-24 02:57:22,938 INFO L138 Inliner]: procedures = 23, calls = 35, calls flagged for inlining = 13, calls inlined = 15, statements flattened = 179 [2025-01-24 02:57:22,939 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-24 02:57:22,939 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-24 02:57:22,942 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-24 02:57:22,942 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-24 02:57:22,946 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:57:22" (1/1) ... [2025-01-24 02:57:22,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:57:22" (1/1) ... [2025-01-24 02:57:22,948 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:57:22" (1/1) ... [2025-01-24 02:57:22,948 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:57:22" (1/1) ... [2025-01-24 02:57:22,958 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:57:22" (1/1) ... [2025-01-24 02:57:22,962 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:57:22" (1/1) ... [2025-01-24 02:57:22,964 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:57:22" (1/1) ... [2025-01-24 02:57:22,968 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:57:22" (1/1) ... [2025-01-24 02:57:22,969 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:57:22" (1/1) ... [2025-01-24 02:57:22,970 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-24 02:57:22,971 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-24 02:57:22,974 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-24 02:57:22,974 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-24 02:57:22,975 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:57:22" (1/1) ... [2025-01-24 02:57:22,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-24 02:57:22,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 02:57:23,000 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-24 02:57:23,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-24 02:57:23,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-24 02:57:23,021 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-24 02:57:23,022 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-24 02:57:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-24 02:57:23,022 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-24 02:57:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-24 02:57:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-24 02:57:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-24 02:57:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-24 02:57:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-24 02:57:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-24 02:57:23,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-24 02:57:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-24 02:57:23,023 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-24 02:57:23,100 INFO L234 CfgBuilder]: Building ICFG [2025-01-24 02:57:23,101 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-24 02:57:23,356 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-24 02:57:23,356 INFO L283 CfgBuilder]: Performing block encoding [2025-01-24 02:57:23,565 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-24 02:57:23,566 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-24 02:57:23,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 02:57:23 BoogieIcfgContainer [2025-01-24 02:57:23,566 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-24 02:57:23,568 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-24 02:57:23,569 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-24 02:57:23,573 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-24 02:57:23,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 02:57:22" (1/3) ... [2025-01-24 02:57:23,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b92402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 02:57:23, skipping insertion in model container [2025-01-24 02:57:23,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:57:22" (2/3) ... [2025-01-24 02:57:23,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b92402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 02:57:23, skipping insertion in model container [2025-01-24 02:57:23,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 02:57:23" (3/3) ... [2025-01-24 02:57:23,575 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-counter-fun.wvr.c [2025-01-24 02:57:23,586 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-24 02:57:23,587 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-counter-fun.wvr.c that has 3 procedures, 23 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-01-24 02:57:23,587 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-24 02:57:23,623 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-24 02:57:23,653 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-24 02:57:23,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-24 02:57:23,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 02:57:23,656 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-24 02:57:23,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-24 02:57:23,737 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-24 02:57:23,748 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-24 02:57:23,755 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;@2e2957b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-24 02:57:23,755 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-01-24 02:57:23,983 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 02:57:23,984 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 02:57:23,985 INFO L139 ounterexampleChecker]: Examining path program with hash -2008510016, occurence #1 [2025-01-24 02:57:23,985 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 02:57:23,986 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 02:57:23,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 02:57:23,990 INFO L85 PathProgramCache]: Analyzing trace with hash -134407652, now seen corresponding path program 1 times [2025-01-24 02:57:23,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 02:57:23,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91584275] [2025-01-24 02:57:23,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 02:57:23,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 02:57:24,060 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-24 02:57:24,096 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-24 02:57:24,097 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 02:57:24,097 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 02:57:24,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 02:57:24,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 02:57:24,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91584275] [2025-01-24 02:57:24,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91584275] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 02:57:24,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 02:57:24,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-24 02:57:24,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914535342] [2025-01-24 02:57:24,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 02:57:24,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-24 02:57:24,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 02:57:24,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-24 02:57:24,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-01-24 02:57:24,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 02:57:24,317 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 02:57:24,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 02:57:24,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 02:57:24,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 02:57:24,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-24 02:57:24,398 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 02:57:24,398 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 02:57:24,398 INFO L139 ounterexampleChecker]: Examining path program with hash -759658694, occurence #1 [2025-01-24 02:57:24,398 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 02:57:24,398 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 02:57:24,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 02:57:24,399 INFO L85 PathProgramCache]: Analyzing trace with hash -2145713577, now seen corresponding path program 1 times [2025-01-24 02:57:24,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 02:57:24,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746709020] [2025-01-24 02:57:24,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 02:57:24,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 02:57:24,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-24 02:57:24,419 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-24 02:57:24,419 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 02:57:24,419 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 02:57:24,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-24 02:57:24,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 02:57:24,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746709020] [2025-01-24 02:57:24,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746709020] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 02:57:24,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 02:57:24,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-24 02:57:24,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10075579] [2025-01-24 02:57:24,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 02:57:24,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-24 02:57:24,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 02:57:24,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-24 02:57:24,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-24 02:57:24,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 02:57:24,612 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 02:57:24,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 02:57:24,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 02:57:24,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 02:57:24,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 02:57:24,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:24,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-24 02:57:24,662 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 02:57:24,662 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 02:57:24,662 INFO L139 ounterexampleChecker]: Examining path program with hash -759658694, occurence #2 [2025-01-24 02:57:24,662 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 02:57:24,662 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 02:57:24,662 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 02:57:24,663 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-24 02:57:24,683 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 02:57:24,683 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-01-24 02:57:24,683 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 02:57:24,683 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2025-01-24 02:57:24,684 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 02:57:24,684 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 02:57:24,684 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 02:57:24,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 02:57:24,685 INFO L85 PathProgramCache]: Analyzing trace with hash -897684209, now seen corresponding path program 1 times [2025-01-24 02:57:24,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 02:57:24,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049224146] [2025-01-24 02:57:24,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 02:57:24,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 02:57:24,695 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-24 02:57:24,709 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-24 02:57:24,709 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 02:57:24,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 02:57:24,832 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-24 02:57:24,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 02:57:24,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049224146] [2025-01-24 02:57:24,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049224146] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 02:57:24,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 02:57:24,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-24 02:57:24,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125770526] [2025-01-24 02:57:24,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 02:57:24,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-24 02:57:24,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 02:57:24,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-24 02:57:24,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-24 02:57:24,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 02:57:24,833 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 02:57:24,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 02:57:24,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 02:57:24,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:24,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 02:57:24,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 02:57:24,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:24,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:24,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-24 02:57:24,890 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 02:57:24,890 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 02:57:24,890 INFO L139 ounterexampleChecker]: Examining path program with hash -759658694, occurence #3 [2025-01-24 02:57:24,891 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 02:57:24,891 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 02:57:24,891 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 02:57:24,891 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-01-24 02:57:24,891 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 02:57:24,891 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-01-24 02:57:24,891 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 02:57:24,891 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-01-24 02:57:24,891 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 02:57:24,891 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 02:57:24,891 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 02:57:24,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 02:57:24,892 INFO L85 PathProgramCache]: Analyzing trace with hash -807069443, now seen corresponding path program 1 times [2025-01-24 02:57:24,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 02:57:24,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497001461] [2025-01-24 02:57:24,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 02:57:24,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 02:57:24,901 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-24 02:57:24,914 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-24 02:57:24,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 02:57:24,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 02:57:25,013 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-24 02:57:25,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 02:57:25,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497001461] [2025-01-24 02:57:25,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497001461] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 02:57:25,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166560941] [2025-01-24 02:57:25,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 02:57:25,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 02:57:25,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 02:57:25,031 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 02:57:25,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-24 02:57:25,077 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-24 02:57:25,096 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-24 02:57:25,097 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 02:57:25,097 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 02:57:25,098 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-24 02:57:25,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 02:57:25,189 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-24 02:57:25,189 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 02:57:25,233 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-24 02:57:25,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166560941] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 02:57:25,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 02:57:25,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 13 [2025-01-24 02:57:25,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634919722] [2025-01-24 02:57:25,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 02:57:25,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-24 02:57:25,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 02:57:25,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-24 02:57:25,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2025-01-24 02:57:25,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 02:57:25,235 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 02:57:25,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 02:57:25,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 02:57:25,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:25,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:25,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 02:57:25,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 02:57:25,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:25,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:25,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-24 02:57:25,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-24 02:57:25,645 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 [2025-01-24 02:57:25,646 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 02:57:25,646 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 02:57:25,646 INFO L139 ounterexampleChecker]: Examining path program with hash 187750861, occurence #1 [2025-01-24 02:57:25,646 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 02:57:25,646 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 02:57:25,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 02:57:25,646 INFO L85 PathProgramCache]: Analyzing trace with hash 493540339, now seen corresponding path program 2 times [2025-01-24 02:57:25,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 02:57:25,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948035916] [2025-01-24 02:57:25,646 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-24 02:57:25,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 02:57:25,660 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 38 statements into 2 equivalence classes. [2025-01-24 02:57:25,685 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 38 of 38 statements. [2025-01-24 02:57:25,685 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-24 02:57:25,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 02:57:25,845 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-01-24 02:57:25,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 02:57:25,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948035916] [2025-01-24 02:57:25,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948035916] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 02:57:25,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632017705] [2025-01-24 02:57:25,846 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-24 02:57:25,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 02:57:25,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 02:57:25,848 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 02:57:25,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-24 02:57:25,913 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 38 statements into 2 equivalence classes. [2025-01-24 02:57:25,939 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 38 of 38 statements. [2025-01-24 02:57:25,939 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-24 02:57:25,939 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 02:57:25,940 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-24 02:57:25,941 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 02:57:26,092 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-24 02:57:26,093 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 02:57:26,176 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-24 02:57:26,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632017705] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 02:57:26,176 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 02:57:26,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 7] total 18 [2025-01-24 02:57:26,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947077909] [2025-01-24 02:57:26,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 02:57:26,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-24 02:57:26,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 02:57:26,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-24 02:57:26,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2025-01-24 02:57:26,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 02:57:26,177 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 02:57:26,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 02:57:26,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 02:57:26,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:26,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:26,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-01-24 02:57:26,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 02:57:26,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 02:57:26,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:26,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:26,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-24 02:57:26,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-24 02:57:26,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-24 02:57:26,699 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 [2025-01-24 02:57:26,699 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 02:57:26,699 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 02:57:26,699 INFO L139 ounterexampleChecker]: Examining path program with hash -2048272495, occurence #1 [2025-01-24 02:57:26,699 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 02:57:26,699 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 02:57:26,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 02:57:26,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1701822505, now seen corresponding path program 3 times [2025-01-24 02:57:26,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 02:57:26,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640874672] [2025-01-24 02:57:26,700 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-24 02:57:26,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 02:57:26,714 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 47 statements into 5 equivalence classes. [2025-01-24 02:57:26,723 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 26 of 47 statements. [2025-01-24 02:57:26,724 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-24 02:57:26,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 02:57:26,941 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-01-24 02:57:26,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 02:57:26,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640874672] [2025-01-24 02:57:26,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640874672] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 02:57:26,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262340525] [2025-01-24 02:57:26,942 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-24 02:57:26,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 02:57:26,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 02:57:26,944 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 02:57:26,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-24 02:57:27,000 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 47 statements into 5 equivalence classes. [2025-01-24 02:57:27,020 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 26 of 47 statements. [2025-01-24 02:57:27,020 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-24 02:57:27,020 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 02:57:27,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-24 02:57:27,024 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 02:57:27,093 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-01-24 02:57:27,094 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 02:57:27,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 12 [2025-01-24 02:57:27,181 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-01-24 02:57:27,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262340525] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 02:57:27,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 02:57:27,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 11 [2025-01-24 02:57:27,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126683844] [2025-01-24 02:57:27,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 02:57:27,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-24 02:57:27,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 02:57:27,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-24 02:57:27,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2025-01-24 02:57:27,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 02:57:27,182 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 02:57:27,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 02:57:27,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 02:57:27,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:27,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:27,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-01-24 02:57:27,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-01-24 02:57:27,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 02:57:27,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 02:57:27,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:27,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:27,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-24 02:57:27,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-24 02:57:27,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 02:57:27,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-24 02:57:27,466 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 [2025-01-24 02:57:27,466 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 02:57:27,466 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 02:57:27,466 INFO L139 ounterexampleChecker]: Examining path program with hash -2048272495, occurence #2 [2025-01-24 02:57:27,466 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 02:57:27,466 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 02:57:27,466 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 02:57:27,466 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-01-24 02:57:27,466 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 02:57:27,466 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-01-24 02:57:27,466 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 02:57:27,466 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-01-24 02:57:27,466 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 02:57:27,466 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2025-01-24 02:57:27,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 02:57:27,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1611539326, now seen corresponding path program 1 times [2025-01-24 02:57:27,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 02:57:27,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885806300] [2025-01-24 02:57:27,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 02:57:27,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 02:57:27,523 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-01-24 02:57:27,584 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-01-24 02:57:27,584 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 02:57:27,584 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 02:57:28,586 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-01-24 02:57:28,586 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-24 02:57:28,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885806300] [2025-01-24 02:57:28,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885806300] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 02:57:28,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1235647402] [2025-01-24 02:57:28,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 02:57:28,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 02:57:28,598 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-01-24 02:57:28,690 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-01-24 02:57:28,690 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 02:57:28,690 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 02:57:28,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 43 conjuncts are in the unsatisfiable core [2025-01-24 02:57:28,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 02:57:29,014 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-01-24 02:57:29,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1235647402] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 02:57:29,014 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 02:57:29,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2025-01-24 02:57:29,015 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-24 02:57:29,015 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 44 [2025-01-24 02:57:29,015 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 02:57:29,015 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 02:57:29,015 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 02:57:29,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 02:57:29,015 INFO L85 PathProgramCache]: Analyzing trace with hash 183575877, now seen corresponding path program 4 times [2025-01-24 02:57:29,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 02:57:29,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256462834] [2025-01-24 02:57:29,016 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-24 02:57:29,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 02:57:29,025 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 48 statements into 2 equivalence classes. [2025-01-24 02:57:29,058 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 48 of 48 statements. [2025-01-24 02:57:29,059 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-24 02:57:29,059 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 02:57:30,167 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-24 02:57:30,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 02:57:30,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256462834] [2025-01-24 02:57:30,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256462834] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 02:57:30,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957586027] [2025-01-24 02:57:30,167 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-24 02:57:30,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 02:57:30,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 02:57:30,172 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 02:57:30,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-24 02:57:30,227 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 48 statements into 2 equivalence classes. [2025-01-24 02:57:30,261 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 48 of 48 statements. [2025-01-24 02:57:30,261 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-24 02:57:30,261 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 02:57:30,268 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 42 conjuncts are in the unsatisfiable core [2025-01-24 02:57:30,272 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 02:57:30,772 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 10 proven. 24 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-24 02:57:30,773 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 02:57:31,479 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-24 02:57:31,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 172 treesize of output 133 [2025-01-24 02:57:32,100 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-24 02:57:32,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957586027] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 02:57:32,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 02:57:32,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 31 [2025-01-24 02:57:32,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170604795] [2025-01-24 02:57:32,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 02:57:32,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-01-24 02:57:32,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 02:57:32,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-01-24 02:57:32,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=775, Unknown=0, NotChecked=0, Total=992 [2025-01-24 02:57:32,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 02:57:32,102 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 02:57:32,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.125) internal successors, (100), 31 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 02:57:32,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 02:57:32,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:32,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:32,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-01-24 02:57:32,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-01-24 02:57:32,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 02:57:32,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 02:57:32,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 02:57:32,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:32,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:32,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-24 02:57:32,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-24 02:57:32,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 02:57:32,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-24 02:57:32,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-24 02:57:32,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,SelfDestructingSolverStorable7,SelfDestructingSolverStorable6,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 02:57:32,573 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 02:57:32,573 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 02:57:32,573 INFO L139 ounterexampleChecker]: Examining path program with hash -2048272495, occurence #3 [2025-01-24 02:57:32,573 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 02:57:32,573 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 02:57:32,573 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 02:57:32,573 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-01-24 02:57:32,573 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 02:57:32,573 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-01-24 02:57:32,573 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 02:57:32,573 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2025-01-24 02:57:32,573 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 02:57:32,573 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2025-01-24 02:57:32,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 02:57:32,603 INFO L85 PathProgramCache]: Analyzing trace with hash -590398919, now seen corresponding path program 1 times [2025-01-24 02:57:32,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 02:57:32,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430795242] [2025-01-24 02:57:32,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 02:57:32,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 02:57:32,611 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-01-24 02:57:32,657 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-01-24 02:57:32,657 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 02:57:32,657 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 02:57:35,416 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 02:57:35,416 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-24 02:57:35,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430795242] [2025-01-24 02:57:35,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430795242] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 02:57:35,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1429647536] [2025-01-24 02:57:35,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 02:57:35,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 02:57:35,424 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-01-24 02:57:35,498 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-01-24 02:57:35,498 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 02:57:35,498 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 02:57:35,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 82 conjuncts are in the unsatisfiable core [2025-01-24 02:57:35,505 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 02:57:36,147 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-24 02:57:36,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1429647536] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 02:57:36,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 02:57:36,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 21 [2025-01-24 02:57:36,148 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-24 02:57:36,148 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 45 [2025-01-24 02:57:36,148 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 02:57:36,148 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 02:57:36,148 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 02:57:36,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 02:57:36,149 INFO L85 PathProgramCache]: Analyzing trace with hash 518907901, now seen corresponding path program 5 times [2025-01-24 02:57:36,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 02:57:36,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835152310] [2025-01-24 02:57:36,149 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-24 02:57:36,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 02:57:36,159 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 49 statements into 5 equivalence classes. [2025-01-24 02:57:36,191 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) and asserted 49 of 49 statements. [2025-01-24 02:57:36,191 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2025-01-24 02:57:36,191 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 02:57:37,855 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 02:57:37,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 02:57:37,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835152310] [2025-01-24 02:57:37,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835152310] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 02:57:37,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357496893] [2025-01-24 02:57:37,856 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-24 02:57:37,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 02:57:37,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 02:57:37,857 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 02:57:37,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-24 02:57:37,916 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 49 statements into 5 equivalence classes. [2025-01-24 02:57:37,995 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) and asserted 49 of 49 statements. [2025-01-24 02:57:37,996 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2025-01-24 02:57:37,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 02:57:37,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 43 conjuncts are in the unsatisfiable core [2025-01-24 02:57:38,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 02:57:38,764 INFO L349 Elim1Store]: treesize reduction 175, result has 24.9 percent of original size [2025-01-24 02:57:38,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 21 case distinctions, treesize of input 127 treesize of output 96 [2025-01-24 02:57:38,785 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-01-24 02:57:38,785 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 02:57:40,117 INFO L349 Elim1Store]: treesize reduction 236, result has 42.9 percent of original size [2025-01-24 02:57:40,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 16 new quantified variables, introduced 36 case distinctions, treesize of input 218 treesize of output 258 [2025-01-24 02:57:40,202 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 9 proven. 31 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-24 02:57:40,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357496893] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 02:57:40,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 02:57:40,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 12, 11] total 37 [2025-01-24 02:57:40,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968458115] [2025-01-24 02:57:40,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 02:57:40,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2025-01-24 02:57:40,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 02:57:40,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2025-01-24 02:57:40,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1272, Unknown=0, NotChecked=0, Total=1406 [2025-01-24 02:57:40,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 02:57:40,204 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 02:57:40,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.1578947368421053) internal successors, (120), 37 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 02:57:40,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 02:57:40,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:40,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:40,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-01-24 02:57:40,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-01-24 02:57:40,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 02:57:40,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-01-24 02:57:40,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 02:57:40,750 WARN L331 ript$VariableManager]: TermVariable v_~counter~0_193 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-24 02:57:40,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 02:57:40,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:40,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 02:57:40,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-24 02:57:40,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-24 02:57:40,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 02:57:40,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-24 02:57:40,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-24 02:57:40,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-24 02:57:41,000 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,SelfDestructingSolverStorable10,SelfDestructingSolverStorable11,SelfDestructingSolverStorable9 [2025-01-24 02:57:41,001 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 02:57:41,001 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 02:57:41,001 INFO L139 ounterexampleChecker]: Examining path program with hash -1100862940, occurence #1 [2025-01-24 02:57:41,001 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 02:57:41,001 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 02:57:41,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 02:57:41,002 INFO L85 PathProgramCache]: Analyzing trace with hash 2044719631, now seen corresponding path program 6 times [2025-01-24 02:57:41,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 02:57:41,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404855296] [2025-01-24 02:57:41,002 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-24 02:57:41,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 02:57:41,012 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 62 statements into 7 equivalence classes. [2025-01-24 02:57:41,217 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) and asserted 62 of 62 statements. [2025-01-24 02:57:41,217 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2025-01-24 02:57:41,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 02:57:47,414 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 02:57:47,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 02:57:47,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404855296] [2025-01-24 02:57:47,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404855296] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 02:57:47,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872012469] [2025-01-24 02:57:47,415 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-24 02:57:47,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 02:57:47,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 02:57:47,416 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 02:57:47,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-24 02:57:47,478 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 62 statements into 7 equivalence classes. [2025-01-24 02:57:47,526 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) and asserted 62 of 62 statements. [2025-01-24 02:57:47,527 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2025-01-24 02:57:47,527 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 02:57:47,528 INFO L256 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 83 conjuncts are in the unsatisfiable core [2025-01-24 02:57:47,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 02:57:47,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-01-24 02:57:48,660 INFO L349 Elim1Store]: treesize reduction 521, result has 5.8 percent of original size [2025-01-24 02:57:48,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 19 new quantified variables, introduced 55 case distinctions, treesize of input 457 treesize of output 108 [2025-01-24 02:57:48,672 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 38 proven. 34 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-01-24 02:57:48,672 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 02:57:50,974 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-24 02:57:50,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46168 treesize of output 41594 [2025-01-24 02:58:29,286 INFO L349 Elim1Store]: treesize reduction 152, result has 81.8 percent of original size [2025-01-24 02:58:29,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 21 new quantified variables, introduced 66 case distinctions, treesize of input 37917 treesize of output 24967 [2025-01-24 03:01:48,088 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2025-01-24 03:01:48,088 WARN L249 Executor]: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2025-01-24 03:01:48,089 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2025-01-24 03:01:48,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-24 03:01:48,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 03:01:48,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-01-24 03:01:48,298 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.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.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.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 86 more [2025-01-24 03:01:48,305 INFO L158 Benchmark]: Toolchain (without parser) took 265617.73ms. Allocated memory was 83.9MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 59.6MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 855.5MB. Max. memory is 16.1GB. [2025-01-24 03:01:48,305 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory was 61.3MB in the beginning and 61.3MB in the end (delta: 36.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-24 03:01:48,305 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.63ms. Allocated memory is still 83.9MB. Free memory was 59.3MB in the beginning and 45.7MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-24 03:01:48,305 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.78ms. Allocated memory is still 83.9MB. Free memory was 45.7MB in the beginning and 44.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-24 03:01:48,305 INFO L158 Benchmark]: Boogie Preprocessor took 31.41ms. Allocated memory is still 83.9MB. Free memory was 44.1MB in the beginning and 42.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-24 03:01:48,305 INFO L158 Benchmark]: RCFGBuilder took 595.64ms. Allocated memory is still 83.9MB. Free memory was 42.4MB in the beginning and 28.6MB in the end (delta: 13.9MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2025-01-24 03:01:48,306 INFO L158 Benchmark]: TraceAbstraction took 264736.04ms. Allocated memory was 83.9MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 28.0MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 826.4MB. Max. memory is 16.1GB. [2025-01-24 03:01:48,307 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory was 61.3MB in the beginning and 61.3MB in the end (delta: 36.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 220.63ms. Allocated memory is still 83.9MB. Free memory was 59.3MB in the beginning and 45.7MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.78ms. Allocated memory is still 83.9MB. Free memory was 45.7MB in the beginning and 44.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.41ms. Allocated memory is still 83.9MB. Free memory was 44.1MB in the beginning and 42.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 595.64ms. Allocated memory is still 83.9MB. Free memory was 42.4MB in the beginning and 28.6MB in the end (delta: 13.9MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. * TraceAbstraction took 264736.04ms. Allocated memory was 83.9MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 28.0MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 826.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-counter-fun.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 fbe9f324c9eba6beb8c990e3f85f0b00a68548fe05ffdb4e97bc061354d1cdf2 --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-24 03:01:49,852 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-24 03:01:49,916 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2025-01-24 03:01:49,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-24 03:01:49,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-24 03:01:49,939 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-24 03:01:49,939 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-24 03:01:49,939 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-24 03:01:49,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-24 03:01:49,940 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-24 03:01:49,940 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-24 03:01:49,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-24 03:01:49,940 INFO L153 SettingsManager]: * Use SBE=true [2025-01-24 03:01:49,940 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-24 03:01:49,940 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-24 03:01:49,940 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-24 03:01:49,940 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-24 03:01:49,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-24 03:01:49,940 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-24 03:01:49,941 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-24 03:01:49,941 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-24 03:01:49,941 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-24 03:01:49,941 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-24 03:01:49,941 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-24 03:01:49,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-24 03:01:49,941 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-24 03:01:49,941 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-24 03:01:49,941 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-24 03:01:49,941 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-24 03:01:49,941 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-24 03:01:49,941 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-24 03:01:49,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-24 03:01:49,941 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-24 03:01:49,941 INFO L153 SettingsManager]: * Refinement strategy for commutativity condition synthesis=FOX [2025-01-24 03:01:49,941 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-24 03:01:49,941 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-24 03:01:49,941 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-24 03:01:49,941 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-24 03:01:49,942 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-24 03:01:49,942 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-24 03:01:49,942 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-24 03:01:49,942 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-24 03:01:49,942 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-24 03:01:49,942 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-24 03:01:49,942 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-24 03:01:49,942 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 -> fbe9f324c9eba6beb8c990e3f85f0b00a68548fe05ffdb4e97bc061354d1cdf2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2025-01-24 03:01:50,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-24 03:01:50,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-24 03:01:50,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-24 03:01:50,183 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-24 03:01:50,183 INFO L274 PluginConnector]: CDTParser initialized [2025-01-24 03:01:50,184 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c [2025-01-24 03:01:51,291 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/4b9f062aa/c4e2bd7c033947e488087e04c1d125d5/FLAG381ffcd3f [2025-01-24 03:01:51,481 INFO L384 CDTParser]: Found 1 translation units. [2025-01-24 03:01:51,482 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c [2025-01-24 03:01:51,488 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/4b9f062aa/c4e2bd7c033947e488087e04c1d125d5/FLAG381ffcd3f [2025-01-24 03:01:51,855 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/4b9f062aa/c4e2bd7c033947e488087e04c1d125d5 [2025-01-24 03:01:51,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-24 03:01:51,857 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-24 03:01:51,858 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-24 03:01:51,858 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-24 03:01:51,861 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-24 03:01:51,861 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 03:01:51" (1/1) ... [2025-01-24 03:01:51,862 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e6fd548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:01:51, skipping insertion in model container [2025-01-24 03:01:51,862 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 03:01:51" (1/1) ... [2025-01-24 03:01:51,874 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-24 03:01:51,978 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c[2707,2720] [2025-01-24 03:01:51,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-24 03:01:51,994 INFO L200 MainTranslator]: Completed pre-run [2025-01-24 03:01:52,051 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c[2707,2720] [2025-01-24 03:01:52,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-24 03:01:52,075 INFO L204 MainTranslator]: Completed translation [2025-01-24 03:01:52,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:01:52 WrapperNode [2025-01-24 03:01:52,075 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-24 03:01:52,076 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-24 03:01:52,076 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-24 03:01:52,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-24 03:01:52,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:01:52" (1/1) ... [2025-01-24 03:01:52,088 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:01:52" (1/1) ... [2025-01-24 03:01:52,104 INFO L138 Inliner]: procedures = 25, calls = 35, calls flagged for inlining = 13, calls inlined = 15, statements flattened = 174 [2025-01-24 03:01:52,104 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-24 03:01:52,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-24 03:01:52,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-24 03:01:52,105 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-24 03:01:52,111 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:01:52" (1/1) ... [2025-01-24 03:01:52,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:01:52" (1/1) ... [2025-01-24 03:01:52,114 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:01:52" (1/1) ... [2025-01-24 03:01:52,114 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:01:52" (1/1) ... [2025-01-24 03:01:52,120 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:01:52" (1/1) ... [2025-01-24 03:01:52,125 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:01:52" (1/1) ... [2025-01-24 03:01:52,127 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:01:52" (1/1) ... [2025-01-24 03:01:52,128 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:01:52" (1/1) ... [2025-01-24 03:01:52,131 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:01:52" (1/1) ... [2025-01-24 03:01:52,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-24 03:01:52,136 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-24 03:01:52,136 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-24 03:01:52,136 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-24 03:01:52,136 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:01:52" (1/1) ... [2025-01-24 03:01:52,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-24 03:01:52,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 03:01:52,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-24 03:01:52,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-24 03:01:52,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-24 03:01:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-24 03:01:52,176 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-24 03:01:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-24 03:01:52,176 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-24 03:01:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2025-01-24 03:01:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-24 03:01:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-24 03:01:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-24 03:01:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-01-24 03:01:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-24 03:01:52,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-24 03:01:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-01-24 03:01:52,177 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-24 03:01:52,247 INFO L234 CfgBuilder]: Building ICFG [2025-01-24 03:01:52,248 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-24 03:01:52,512 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-24 03:01:52,512 INFO L283 CfgBuilder]: Performing block encoding [2025-01-24 03:01:52,747 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-24 03:01:52,747 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-24 03:01:52,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 03:01:52 BoogieIcfgContainer [2025-01-24 03:01:52,748 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-24 03:01:52,750 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-24 03:01:52,750 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-24 03:01:52,753 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-24 03:01:52,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 03:01:51" (1/3) ... [2025-01-24 03:01:52,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53916c33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 03:01:52, skipping insertion in model container [2025-01-24 03:01:52,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:01:52" (2/3) ... [2025-01-24 03:01:52,755 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53916c33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 03:01:52, skipping insertion in model container [2025-01-24 03:01:52,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 03:01:52" (3/3) ... [2025-01-24 03:01:52,755 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-counter-fun.wvr.c [2025-01-24 03:01:52,765 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-24 03:01:52,766 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-counter-fun.wvr.c that has 3 procedures, 23 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-01-24 03:01:52,766 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-24 03:01:52,797 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-24 03:01:52,827 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-24 03:01:52,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-24 03:01:52,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 03:01:52,830 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-24 03:01:52,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-24 03:01:52,884 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-24 03:01:52,895 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-24 03:01:52,899 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;@2eac0f48, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-24 03:01:52,899 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-01-24 03:01:54,167 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 03:01:54,168 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 03:01:54,170 INFO L139 ounterexampleChecker]: Examining path program with hash 1969552966, occurence #1 [2025-01-24 03:01:54,170 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 03:01:54,170 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 03:01:54,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 03:01:54,173 INFO L85 PathProgramCache]: Analyzing trace with hash 147082972, now seen corresponding path program 1 times [2025-01-24 03:01:54,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 03:01:54,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2111539359] [2025-01-24 03:01:54,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 03:01:54,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 03:01:54,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 03:01:54,185 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 03:01:54,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-24 03:01:54,247 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-24 03:01:54,264 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-24 03:01:54,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 03:01:54,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 03:01:54,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-24 03:01:54,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 03:01:54,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 03:01:54,321 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-24 03:01:54,321 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 03:01:54,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111539359] [2025-01-24 03:01:54,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111539359] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 03:01:54,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 03:01:54,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-24 03:01:54,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821020982] [2025-01-24 03:01:54,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 03:01:54,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-24 03:01:54,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 03:01:54,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-24 03:01:54,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-24 03:01:54,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 03:01:54,342 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 03:01:54,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 03:01:54,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 03:01:54,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:01:54,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-24 03:01:54,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 03:01:54,657 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 03:01:54,658 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 03:01:54,658 INFO L139 ounterexampleChecker]: Examining path program with hash -1076563008, occurence #1 [2025-01-24 03:01:54,658 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 03:01:54,658 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 03:01:54,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 03:01:54,658 INFO L85 PathProgramCache]: Analyzing trace with hash -21654697, now seen corresponding path program 1 times [2025-01-24 03:01:54,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 03:01:54,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [558164814] [2025-01-24 03:01:54,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 03:01:54,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 03:01:54,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 03:01:54,661 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 03:01:54,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-24 03:01:54,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-24 03:01:54,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-24 03:01:54,734 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 03:01:54,734 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 03:01:54,737 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-24 03:01:54,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 03:01:54,835 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 03:01:54,836 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 03:01:55,026 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 03:01:55,027 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 03:01:55,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558164814] [2025-01-24 03:01:55,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558164814] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 03:01:55,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 03:01:55,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2025-01-24 03:01:55,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427899764] [2025-01-24 03:01:55,028 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-24 03:01:55,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-24 03:01:55,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 03:01:55,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-24 03:01:55,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2025-01-24 03:01:55,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 03:01:55,031 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 03:01:55,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 03:01:55,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:01:55,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 03:01:55,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:01:55,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-24 03:01:55,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-24 03:01:55,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 03:01:55,681 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 03:01:55,681 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 03:01:55,681 INFO L139 ounterexampleChecker]: Examining path program with hash -1076563008, occurence #2 [2025-01-24 03:01:55,681 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 03:01:55,681 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 03:01:55,682 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 03:01:55,682 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-01-24 03:01:55,697 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:01:55,697 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-01-24 03:01:55,697 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:01:55,697 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 32 [2025-01-24 03:01:55,697 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:01:55,697 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 03:01:55,697 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 03:01:55,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 03:01:55,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1990085747, now seen corresponding path program 2 times [2025-01-24 03:01:55,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 03:01:55,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1467649346] [2025-01-24 03:01:55,698 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-24 03:01:55,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 03:01:55,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 03:01:55,701 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 03:01:55,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-24 03:01:55,760 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 36 statements into 2 equivalence classes. [2025-01-24 03:01:55,775 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 18 of 36 statements. [2025-01-24 03:01:55,775 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-24 03:01:55,775 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 03:01:55,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-24 03:01:55,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 03:01:55,868 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-24 03:01:55,869 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-24 03:01:55,869 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 03:01:55,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467649346] [2025-01-24 03:01:55,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467649346] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 03:01:55,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 03:01:55,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-24 03:01:55,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912422608] [2025-01-24 03:01:55,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 03:01:55,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-24 03:01:55,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 03:01:55,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-24 03:01:55,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-24 03:01:55,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 03:01:55,870 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 03:01:55,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 03:01:55,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:01:55,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-01-24 03:01:55,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 03:01:55,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:01:55,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-24 03:01:55,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:01:55,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-24 03:01:56,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 03:01:56,134 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 03:01:56,134 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 03:01:56,134 INFO L139 ounterexampleChecker]: Examining path program with hash -1076563008, occurence #3 [2025-01-24 03:01:56,134 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 03:01:56,134 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 03:01:56,134 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 03:01:56,134 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-24 03:01:56,135 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:01:56,135 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-01-24 03:01:56,135 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:01:56,135 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-01-24 03:01:56,135 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:01:56,135 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 03:01:56,135 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 03:01:56,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 03:01:56,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1100252987, now seen corresponding path program 1 times [2025-01-24 03:01:56,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 03:01:56,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1868000293] [2025-01-24 03:01:56,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 03:01:56,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 03:01:56,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 03:01:56,138 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 03:01:56,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-24 03:01:56,180 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-01-24 03:01:56,206 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-01-24 03:01:56,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 03:01:56,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 03:01:56,210 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-24 03:01:56,211 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 03:01:56,255 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-01-24 03:01:56,255 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-24 03:01:56,255 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 03:01:56,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868000293] [2025-01-24 03:01:56,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868000293] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 03:01:56,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 03:01:56,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-24 03:01:56,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807810964] [2025-01-24 03:01:56,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 03:01:56,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-24 03:01:56,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 03:01:56,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-24 03:01:56,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-24 03:01:56,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 03:01:56,257 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 03:01:56,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 03:01:56,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:01:56,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-01-24 03:01:56,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:01:56,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 03:01:56,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:01:56,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-24 03:01:56,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:01:56,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:01:56,323 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-24 03:01:56,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 03:01:56,517 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 03:01:56,517 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 03:01:56,518 INFO L139 ounterexampleChecker]: Examining path program with hash -1076563008, occurence #4 [2025-01-24 03:01:56,518 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 03:01:56,518 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 03:01:56,518 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 03:01:56,518 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-01-24 03:01:56,518 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:01:56,518 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-01-24 03:01:56,518 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:01:56,518 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2025-01-24 03:01:56,518 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:01:56,518 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 03:01:56,518 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 03:01:56,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 03:01:56,519 INFO L85 PathProgramCache]: Analyzing trace with hash -739729421, now seen corresponding path program 1 times [2025-01-24 03:01:56,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 03:01:56,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [494672466] [2025-01-24 03:01:56,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 03:01:56,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 03:01:56,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 03:01:56,521 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 03:01:56,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-24 03:01:56,568 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-01-24 03:01:56,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-01-24 03:01:56,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 03:01:56,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 03:01:56,602 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-01-24 03:01:56,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 03:01:57,067 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-24 03:01:57,070 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-24 03:01:57,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 13 [2025-01-24 03:01:57,102 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-24 03:01:57,102 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 03:01:57,585 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-24 03:01:57,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 70 [2025-01-24 03:01:59,041 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-24 03:01:59,041 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 03:01:59,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494672466] [2025-01-24 03:01:59,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494672466] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 03:01:59,041 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 03:01:59,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2025-01-24 03:01:59,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779259079] [2025-01-24 03:01:59,042 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-24 03:01:59,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-24 03:01:59,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 03:01:59,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-24 03:01:59,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2025-01-24 03:01:59,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 03:01:59,043 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 03:01:59,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 17 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 03:01:59,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:01:59,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-01-24 03:01:59,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:01:59,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:01:59,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 03:01:59,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:01:59,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-24 03:01:59,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:01:59,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:01:59,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 03:01:59,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-24 03:01:59,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 03:01:59,940 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 03:01:59,940 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 03:01:59,940 INFO L139 ounterexampleChecker]: Examining path program with hash -1076563008, occurence #5 [2025-01-24 03:01:59,940 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 03:01:59,940 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 03:01:59,940 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 03:01:59,940 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-01-24 03:01:59,940 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:01:59,940 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-01-24 03:01:59,940 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:01:59,940 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2025-01-24 03:01:59,940 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:01:59,941 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 03:01:59,941 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 03:01:59,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 03:01:59,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1253392417, now seen corresponding path program 2 times [2025-01-24 03:01:59,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 03:01:59,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1870947761] [2025-01-24 03:01:59,941 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-24 03:01:59,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 03:01:59,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 03:01:59,943 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 03:01:59,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-24 03:01:59,993 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 39 statements into 2 equivalence classes. [2025-01-24 03:02:00,033 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 39 of 39 statements. [2025-01-24 03:02:00,034 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-24 03:02:00,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 03:02:00,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-24 03:02:00,039 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 03:02:00,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 10 [2025-01-24 03:02:00,161 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-01-24 03:02:00,161 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 03:02:00,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 12 [2025-01-24 03:02:00,246 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-01-24 03:02:00,246 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 03:02:00,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870947761] [2025-01-24 03:02:00,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870947761] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 03:02:00,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 03:02:00,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2025-01-24 03:02:00,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52872283] [2025-01-24 03:02:00,247 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-24 03:02:00,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-24 03:02:00,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 03:02:00,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-24 03:02:00,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2025-01-24 03:02:00,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 03:02:00,248 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 03:02:00,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 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) [2025-01-24 03:02:00,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:02:00,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-01-24 03:02:00,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:02:00,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:02:00,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 03:02:00,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 03:02:00,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:02:00,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-24 03:02:00,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:02:00,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:02:00,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 03:02:00,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:02:00,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-24 03:02:00,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 03:02:00,603 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 03:02:00,603 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 03:02:00,603 INFO L139 ounterexampleChecker]: Examining path program with hash -1076563008, occurence #6 [2025-01-24 03:02:00,603 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 03:02:00,603 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 03:02:00,603 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 03:02:00,603 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-01-24 03:02:00,603 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:02:00,603 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-01-24 03:02:00,603 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:02:00,603 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2025-01-24 03:02:00,603 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:02:00,603 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 03:02:00,603 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 03:02:00,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 03:02:00,603 INFO L85 PathProgramCache]: Analyzing trace with hash -287374387, now seen corresponding path program 3 times [2025-01-24 03:02:00,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 03:02:00,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1301564324] [2025-01-24 03:02:00,604 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-24 03:02:00,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 03:02:00,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 03:02:00,606 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 03:02:00,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-24 03:02:00,665 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 40 statements into 4 equivalence classes. [2025-01-24 03:02:00,727 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 40 of 40 statements. [2025-01-24 03:02:00,727 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-01-24 03:02:00,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 03:02:00,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-24 03:02:00,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 03:02:00,900 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-24 03:02:00,901 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 03:02:01,261 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-24 03:02:01,261 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 03:02:01,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301564324] [2025-01-24 03:02:01,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301564324] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 03:02:01,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 03:02:01,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2025-01-24 03:02:01,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388110748] [2025-01-24 03:02:01,261 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-24 03:02:01,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-01-24 03:02:01,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 03:02:01,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-01-24 03:02:01,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2025-01-24 03:02:01,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 03:02:01,262 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 03:02:01,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 22 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 03:02:01,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:02:01,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-01-24 03:02:01,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:02:01,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:02:01,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 03:02:01,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:02:01,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 03:02:02,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:02:02,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-24 03:02:02,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:02:02,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:02:02,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 03:02:02,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:02:02,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-01-24 03:02:02,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-01-24 03:02:02,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 03:02:02,740 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 03:02:02,741 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 03:02:02,741 INFO L139 ounterexampleChecker]: Examining path program with hash -1076563008, occurence #7 [2025-01-24 03:02:02,741 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 03:02:02,741 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 03:02:02,741 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 03:02:02,741 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-01-24 03:02:02,741 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:02:02,741 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-01-24 03:02:02,741 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:02:02,741 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 60 [2025-01-24 03:02:02,741 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:02:02,741 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 03:02:02,741 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 03:02:02,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 03:02:02,741 INFO L85 PathProgramCache]: Analyzing trace with hash 2006851897, now seen corresponding path program 4 times [2025-01-24 03:02:02,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 03:02:02,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2124017290] [2025-01-24 03:02:02,742 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-24 03:02:02,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 03:02:02,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 03:02:02,743 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 03:02:02,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-24 03:02:02,803 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 64 statements into 2 equivalence classes. [2025-01-24 03:02:02,849 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 62 of 64 statements. [2025-01-24 03:02:02,849 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-24 03:02:02,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 03:02:02,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-01-24 03:02:02,855 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 03:02:03,196 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-24 03:02:03,196 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 03:02:04,148 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-24 03:02:04,148 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 03:02:04,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124017290] [2025-01-24 03:02:04,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124017290] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 03:02:04,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 03:02:04,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2025-01-24 03:02:04,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303057754] [2025-01-24 03:02:04,148 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-24 03:02:04,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2025-01-24 03:02:04,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 03:02:04,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2025-01-24 03:02:04,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=1115, Unknown=0, NotChecked=0, Total=1406 [2025-01-24 03:02:04,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 03:02:04,149 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 03:02:04,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.973684210526316) internal successors, (113), 38 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 03:02:04,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:02:04,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-01-24 03:02:04,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:02:04,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:02:04,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 03:02:04,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:02:04,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2025-01-24 03:02:04,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 03:02:09,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:02:09,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-24 03:02:09,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:02:09,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:02:09,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 03:02:09,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:02:09,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-01-24 03:02:10,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2025-01-24 03:02:10,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-24 03:02:10,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 03:02:10,200 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 03:02:10,200 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 03:02:10,201 INFO L139 ounterexampleChecker]: Examining path program with hash -1076563008, occurence #8 [2025-01-24 03:02:10,201 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 03:02:10,201 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 03:02:10,201 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 03:02:10,201 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-01-24 03:02:10,202 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:02:10,202 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-01-24 03:02:10,202 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:02:10,202 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 108 [2025-01-24 03:02:10,202 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:02:10,202 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 03:02:10,202 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 03:02:10,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 03:02:10,202 INFO L85 PathProgramCache]: Analyzing trace with hash -2085302255, now seen corresponding path program 5 times [2025-01-24 03:02:10,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 03:02:10,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1628335905] [2025-01-24 03:02:10,203 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-24 03:02:10,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 03:02:10,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 03:02:10,207 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 03:02:10,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-24 03:02:10,280 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 112 statements into 16 equivalence classes. [2025-01-24 03:02:10,632 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) and asserted 112 of 112 statements. [2025-01-24 03:02:10,633 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2025-01-24 03:02:10,633 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 03:02:10,644 INFO L256 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 35 conjuncts are in the unsatisfiable core [2025-01-24 03:02:10,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 03:02:11,548 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 0 proven. 690 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-24 03:02:11,548 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 03:02:14,498 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 0 proven. 690 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-24 03:02:14,499 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 03:02:14,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628335905] [2025-01-24 03:02:14,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628335905] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 03:02:14,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 03:02:14,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 70 [2025-01-24 03:02:14,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024348345] [2025-01-24 03:02:14,499 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-24 03:02:14,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2025-01-24 03:02:14,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 03:02:14,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2025-01-24 03:02:14,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=947, Invalid=3883, Unknown=0, NotChecked=0, Total=4830 [2025-01-24 03:02:14,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 03:02:14,501 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 03:02:14,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 2.9857142857142858) internal successors, (209), 70 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 03:02:14,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:02:14,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-01-24 03:02:14,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:02:14,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:02:14,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 03:02:14,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:02:14,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2025-01-24 03:02:14,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2025-01-24 03:02:14,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 03:02:47,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:02:47,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-24 03:02:47,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:02:47,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:02:47,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 03:02:47,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:02:47,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-01-24 03:02:47,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2025-01-24 03:02:47,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2025-01-24 03:02:47,774 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-01-24 03:02:47,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 03:02:47,963 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 03:02:47,963 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 03:02:47,964 INFO L139 ounterexampleChecker]: Examining path program with hash -1076563008, occurence #9 [2025-01-24 03:02:47,964 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 03:02:47,964 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 03:02:47,964 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 03:02:47,964 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-01-24 03:02:47,964 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:02:47,964 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-01-24 03:02:47,964 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:02:47,964 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 204 [2025-01-24 03:02:47,964 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:02:47,964 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 03:02:47,964 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 03:02:47,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 03:02:47,964 INFO L85 PathProgramCache]: Analyzing trace with hash 982777281, now seen corresponding path program 6 times [2025-01-24 03:02:47,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 03:02:47,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [566040272] [2025-01-24 03:02:47,965 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-24 03:02:47,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 03:02:47,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 03:02:47,967 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 03:02:47,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-24 03:02:48,069 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 208 statements into 32 equivalence classes. [2025-01-24 03:02:48,989 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 32 check-sat command(s) and asserted 208 of 208 statements. [2025-01-24 03:02:48,989 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 32 check-sat command(s) [2025-01-24 03:02:48,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 03:02:49,012 INFO L256 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 67 conjuncts are in the unsatisfiable core [2025-01-24 03:02:49,016 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 03:02:51,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2920 backedges. 0 proven. 2914 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-24 03:02:51,728 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 03:03:02,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2920 backedges. 0 proven. 2914 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-24 03:03:02,194 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 03:03:02,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566040272] [2025-01-24 03:03:02,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566040272] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 03:03:02,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 03:03:02,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 68] total 134 [2025-01-24 03:03:02,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163947453] [2025-01-24 03:03:02,194 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-24 03:03:02,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 134 states [2025-01-24 03:03:02,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 03:03:02,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2025-01-24 03:03:02,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3411, Invalid=14411, Unknown=0, NotChecked=0, Total=17822 [2025-01-24 03:03:02,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 03:03:02,199 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 03:03:02,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 134 states, 134 states have (on average 2.9925373134328357) internal successors, (401), 134 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 03:03:02,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:03:02,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-01-24 03:03:02,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:03:02,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:03:02,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 03:03:02,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:03:02,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2025-01-24 03:03:02,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2025-01-24 03:03:02,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2025-01-24 03:03:02,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 03:07:10,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:07:10,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-24 03:07:10,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:07:10,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:07:10,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 03:07:10,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:07:10,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-01-24 03:07:10,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2025-01-24 03:07:10,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2025-01-24 03:07:10,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. [2025-01-24 03:07:10,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-01-24 03:07:10,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 03:07:10,892 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 03:07:10,892 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 03:07:10,892 INFO L139 ounterexampleChecker]: Examining path program with hash -1076563008, occurence #10 [2025-01-24 03:07:10,892 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 03:07:10,892 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 03:07:10,892 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 03:07:10,893 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-01-24 03:07:10,893 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:07:10,893 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-01-24 03:07:10,893 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:07:10,893 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 396 [2025-01-24 03:07:10,893 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 03:07:10,893 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 03:07:10,893 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 03:07:10,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 03:07:10,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1516660447, now seen corresponding path program 7 times [2025-01-24 03:07:10,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 03:07:10,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1295159785] [2025-01-24 03:07:10,894 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-24 03:07:10,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 03:07:10,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 03:07:10,896 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 03:07:10,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-01-24 03:07:11,075 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 400 statements into 1 equivalence classes. [2025-01-24 03:07:11,420 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 400 of 400 statements. [2025-01-24 03:07:11,420 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 03:07:11,420 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 03:07:11,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 1120 conjuncts, 131 conjuncts are in the unsatisfiable core [2025-01-24 03:07:11,469 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 03:07:21,592 INFO L134 CoverageAnalysis]: Checked inductivity of 11976 backedges. 0 proven. 11970 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-24 03:07:21,592 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 03:08:04,073 INFO L134 CoverageAnalysis]: Checked inductivity of 11976 backedges. 0 proven. 11970 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-24 03:08:04,074 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 03:08:04,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295159785] [2025-01-24 03:08:04,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295159785] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 03:08:04,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 03:08:04,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [132, 132] total 262 [2025-01-24 03:08:04,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128817359] [2025-01-24 03:08:04,076 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-24 03:08:04,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 262 states [2025-01-24 03:08:04,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 03:08:04,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 262 interpolants. [2025-01-24 03:08:04,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12947, Invalid=55435, Unknown=0, NotChecked=0, Total=68382 [2025-01-24 03:08:04,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 03:08:04,108 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 03:08:04,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 262 states, 262 states have (on average 2.99618320610687) internal successors, (785), 262 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 03:08:04,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:08:04,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-01-24 03:08:04,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:08:04,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 03:08:04,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 03:08:04,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 03:08:04,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2025-01-24 03:08:04,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2025-01-24 03:08:04,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2025-01-24 03:08:04,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 226 states. [2025-01-24 03:08:04,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 03:08:16,080 WARN L286 SmtUtils]: Spent 5.84s on a formula simplification. DAG size of input: 514 DAG size of output: 386 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-01-24 03:08:42,487 WARN L286 SmtUtils]: Spent 18.91s on a formula simplification that was a NOOP. DAG size: 515 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-01-24 03:09:58,587 WARN L286 SmtUtils]: Spent 5.09s on a formula simplification. DAG size of input: 518 DAG size of output: 453 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-01-24 03:10:23,456 WARN L286 SmtUtils]: Spent 12.87s on a formula simplification that was a NOOP. DAG size: 447 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-01-24 03:10:43,046 WARN L286 SmtUtils]: Spent 9.39s on a formula simplification that was a NOOP. DAG size: 444 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Killed by 15