./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult3.wvr.c --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis SUFFICIENT --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ebd41074 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult3.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 7888761977ccc49b1a75199021e374591654c6a4364e63bfc6c86e1c7bb7d64b --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-23 20:01:22,803 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-23 20:01:22,897 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-23 20:01:22,904 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-23 20:01:22,904 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-23 20:01:22,933 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-23 20:01:22,934 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-23 20:01:22,935 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-23 20:01:22,935 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-23 20:01:22,935 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-23 20:01:22,936 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-23 20:01:22,936 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-23 20:01:22,936 INFO L153 SettingsManager]: * Use SBE=true [2025-01-23 20:01:22,937 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-23 20:01:22,937 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-23 20:01:22,937 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-23 20:01:22,937 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-23 20:01:22,938 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-23 20:01:22,938 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-23 20:01:22,938 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-23 20:01:22,938 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-23 20:01:22,938 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-23 20:01:22,938 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-23 20:01:22,938 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-23 20:01:22,938 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-23 20:01:22,938 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-23 20:01:22,939 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-23 20:01:22,939 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-23 20:01:22,939 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-23 20:01:22,939 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-23 20:01:22,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 20:01:22,940 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-23 20:01:22,940 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-23 20:01:22,940 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-23 20:01:22,940 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-23 20:01:22,940 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-23 20:01:22,940 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-23 20:01:22,941 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-23 20:01:22,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-23 20:01:22,941 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-23 20:01:22,941 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-23 20:01:22,941 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-23 20:01:22,941 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-23 20:01:22,941 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 -> 7888761977ccc49b1a75199021e374591654c6a4364e63bfc6c86e1c7bb7d64b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> SUFFICIENT [2025-01-23 20:01:23,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-23 20:01:23,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-23 20:01:23,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-23 20:01:23,262 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-23 20:01:23,262 INFO L274 PluginConnector]: CDTParser initialized [2025-01-23 20:01:23,263 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult3.wvr.c [2025-01-23 20:01:24,532 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/15aa382f3/c901dda027e047358c26787b3c57501e/FLAG8e17093e5 [2025-01-23 20:01:24,750 INFO L384 CDTParser]: Found 1 translation units. [2025-01-23 20:01:24,751 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-more-buffer-mult3.wvr.c [2025-01-23 20:01:24,760 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/15aa382f3/c901dda027e047358c26787b3c57501e/FLAG8e17093e5 [2025-01-23 20:01:24,776 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/15aa382f3/c901dda027e047358c26787b3c57501e [2025-01-23 20:01:24,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-23 20:01:24,780 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-23 20:01:24,781 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-23 20:01:24,781 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-23 20:01:24,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-23 20:01:24,785 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 08:01:24" (1/1) ... [2025-01-23 20:01:24,786 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13581cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:01:24, skipping insertion in model container [2025-01-23 20:01:24,786 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 08:01:24" (1/1) ... [2025-01-23 20:01:24,804 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-23 20:01:24,974 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-more-buffer-mult3.wvr.c[4270,4283] [2025-01-23 20:01:24,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 20:01:24,996 INFO L200 MainTranslator]: Completed pre-run [2025-01-23 20:01:25,066 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-more-buffer-mult3.wvr.c[4270,4283] [2025-01-23 20:01:25,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 20:01:25,091 INFO L204 MainTranslator]: Completed translation [2025-01-23 20:01:25,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:01:25 WrapperNode [2025-01-23 20:01:25,092 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-23 20:01:25,093 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-23 20:01:25,093 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-23 20:01:25,093 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-23 20:01:25,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:01:25" (1/1) ... [2025-01-23 20:01:25,108 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:01:25" (1/1) ... [2025-01-23 20:01:25,136 INFO L138 Inliner]: procedures = 26, calls = 60, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 278 [2025-01-23 20:01:25,136 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-23 20:01:25,137 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-23 20:01:25,137 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-23 20:01:25,137 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-23 20:01:25,143 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:01:25" (1/1) ... [2025-01-23 20:01:25,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:01:25" (1/1) ... [2025-01-23 20:01:25,148 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:01:25" (1/1) ... [2025-01-23 20:01:25,148 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:01:25" (1/1) ... [2025-01-23 20:01:25,161 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:01:25" (1/1) ... [2025-01-23 20:01:25,163 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:01:25" (1/1) ... [2025-01-23 20:01:25,166 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:01:25" (1/1) ... [2025-01-23 20:01:25,169 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:01:25" (1/1) ... [2025-01-23 20:01:25,170 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:01:25" (1/1) ... [2025-01-23 20:01:25,172 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-23 20:01:25,179 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-23 20:01:25,179 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-23 20:01:25,179 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-23 20:01:25,180 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:01:25" (1/1) ... [2025-01-23 20:01:25,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 20:01:25,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:01:25,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-23 20:01:25,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-23 20:01:25,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-23 20:01:25,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-23 20:01:25,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-23 20:01:25,226 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-23 20:01:25,226 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-23 20:01:25,226 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-23 20:01:25,226 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-23 20:01:25,226 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-01-23 20:01:25,226 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-01-23 20:01:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-01-23 20:01:25,227 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-01-23 20:01:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-23 20:01:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-23 20:01:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-23 20:01:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-23 20:01:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-23 20:01:25,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-23 20:01:25,229 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-23 20:01:25,317 INFO L234 CfgBuilder]: Building ICFG [2025-01-23 20:01:25,318 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-23 20:01:25,708 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-23 20:01:25,708 INFO L283 CfgBuilder]: Performing block encoding [2025-01-23 20:01:26,009 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-23 20:01:26,009 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-23 20:01:26,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 08:01:26 BoogieIcfgContainer [2025-01-23 20:01:26,010 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-23 20:01:26,013 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-23 20:01:26,013 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-23 20:01:26,017 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-23 20:01:26,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 08:01:24" (1/3) ... [2025-01-23 20:01:26,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f85cb8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 08:01:26, skipping insertion in model container [2025-01-23 20:01:26,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:01:25" (2/3) ... [2025-01-23 20:01:26,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f85cb8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 08:01:26, skipping insertion in model container [2025-01-23 20:01:26,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 08:01:26" (3/3) ... [2025-01-23 20:01:26,021 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-mult3.wvr.c [2025-01-23 20:01:26,033 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-23 20:01:26,035 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-buffer-mult3.wvr.c that has 5 procedures, 45 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2025-01-23 20:01:26,035 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-23 20:01:26,123 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-01-23 20:01:26,161 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 20:01:26,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-23 20:01:26,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:01:26,165 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-23 20:01:26,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-23 20:01:26,256 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 20:01:26,270 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-23 20:01:26,276 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;@27dc293a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 20:01:26,278 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-01-23 20:01:27,587 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-01-23 20:01:27,587 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:01:27,588 INFO L139 ounterexampleChecker]: Examining path program with hash -282745873, occurence #1 [2025-01-23 20:01:27,589 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:01:27,589 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:01:27,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:01:27,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1488937773, now seen corresponding path program 1 times [2025-01-23 20:01:27,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:01:27,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051644024] [2025-01-23 20:01:27,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:27,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:27,686 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-01-23 20:01:28,067 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-01-23 20:01:28,068 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:28,068 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:29,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:01:29,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:01:29,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051644024] [2025-01-23 20:01:29,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051644024] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 20:01:29,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 20:01:29,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-23 20:01:29,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829707539] [2025-01-23 20:01:29,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 20:01:29,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-23 20:01:29,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:01:29,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-23 20:01:29,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-23 20:01:29,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:01:29,126 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:01:29,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 20:01:29,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:01:29,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:01:29,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-23 20:01:29,284 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-01-23 20:01:29,284 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:01:29,284 INFO L139 ounterexampleChecker]: Examining path program with hash -282745873, occurence #2 [2025-01-23 20:01:29,284 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 20:01:29,284 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-23 20:01:29,285 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:01:29,285 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-23 20:01:29,296 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:01:29,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-01-23 20:01:29,296 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:01:29,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-01-23 20:01:29,297 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:01:29,297 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-01-23 20:01:29,297 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:01:29,297 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 64 [2025-01-23 20:01:29,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 6 [2025-01-23 20:01:29,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:01:29,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1561900872, now seen corresponding path program 1 times [2025-01-23 20:01:29,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:01:29,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287565402] [2025-01-23 20:01:29,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:29,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:29,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-01-23 20:01:29,615 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-01-23 20:01:29,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:29,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:29,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:29,805 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-23 20:01:29,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287565402] [2025-01-23 20:01:29,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287565402] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 20:01:29,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 20:01:29,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-23 20:01:29,807 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 64. Constructing proof automaton... [2025-01-23 20:01:29,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 20:01:29,808 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2025-01-23 20:01:29,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-23 20:01:29,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2025-01-23 20:01:29,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-23 20:01:29,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-23 20:01:29,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:01:29,812 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:01:29,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 20:01:29,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:01:29,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:01:29,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:01:29,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:01:29,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-23 20:01:29,949 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-01-23 20:01:29,950 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:01:29,950 INFO L139 ounterexampleChecker]: Examining path program with hash -282745873, occurence #3 [2025-01-23 20:01:29,951 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 20:01:29,951 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-23 20:01:29,951 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:01:29,951 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-01-23 20:01:29,951 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:01:29,951 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-01-23 20:01:29,951 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:01:29,951 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-01-23 20:01:29,951 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:01:29,951 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-01-23 20:01:29,951 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:01:29,952 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 65 [2025-01-23 20:01:30,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 6 [2025-01-23 20:01:30,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:01:30,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1704952346, now seen corresponding path program 1 times [2025-01-23 20:01:30,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:01:30,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900765842] [2025-01-23 20:01:30,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:30,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:30,220 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-01-23 20:01:30,249 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-01-23 20:01:30,250 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:30,250 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:30,546 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:30,546 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-23 20:01:30,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900765842] [2025-01-23 20:01:30,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900765842] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:30,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1492797740] [2025-01-23 20:01:30,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:30,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:30,566 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-01-23 20:01:30,625 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-01-23 20:01:30,626 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:30,626 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:30,630 INFO L256 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-23 20:01:30,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:01:30,787 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:30,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1492797740] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:30,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:01:30,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-01-23 20:01:30,788 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-23 20:01:30,788 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 76 [2025-01-23 20:01:30,913 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 28 treesize of output 12 [2025-01-23 20:01:31,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:01:31,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1192281311, now seen corresponding path program 1 times [2025-01-23 20:01:31,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:01:31,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392884258] [2025-01-23 20:01:31,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:31,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:31,100 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-01-23 20:01:31,125 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-01-23 20:01:31,125 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:31,125 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:31,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:31,415 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-23 20:01:31,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392884258] [2025-01-23 20:01:31,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392884258] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:31,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1406610771] [2025-01-23 20:01:31,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:31,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:31,431 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-01-23 20:01:31,467 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-01-23 20:01:31,467 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:31,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:31,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-23 20:01:31,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:01:31,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:31,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1406610771] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:31,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:01:31,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-01-23 20:01:31,612 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-23 20:01:31,613 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 77 [2025-01-23 20:01:31,959 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 20:01:31,960 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 96 treesize of output 51 [2025-01-23 20:01:33,816 WARN L331 ript$VariableManager]: TermVariable v_~q1~0.base_In_2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:01:33,816 WARN L331 ript$VariableManager]: TermVariable v_~q1_front~0_In_2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:01:33,816 WARN L331 ript$VariableManager]: TermVariable v_~q1~0.offset_In_2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:01:33,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:01:33,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1693983013, now seen corresponding path program 1 times [2025-01-23 20:01:33,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:01:33,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86481667] [2025-01-23 20:01:33,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:33,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:33,831 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-01-23 20:01:33,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-01-23 20:01:33,851 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:33,852 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:34,111 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:34,112 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-23 20:01:34,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86481667] [2025-01-23 20:01:34,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86481667] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:34,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1679799136] [2025-01-23 20:01:34,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:34,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:34,124 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-01-23 20:01:34,150 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-01-23 20:01:34,151 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:34,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:34,153 INFO L256 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-23 20:01:34,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:01:34,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:34,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1679799136] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:34,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:01:34,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-01-23 20:01:34,315 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-23 20:01:34,315 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 85 [2025-01-23 20:01:34,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2025-01-23 20:01:34,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:01:34,497 INFO L85 PathProgramCache]: Analyzing trace with hash 672946408, now seen corresponding path program 1 times [2025-01-23 20:01:34,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:01:34,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888261364] [2025-01-23 20:01:34,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:34,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:34,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-01-23 20:01:34,541 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-01-23 20:01:34,541 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:34,541 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:34,829 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:34,829 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-23 20:01:34,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888261364] [2025-01-23 20:01:34,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888261364] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:34,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1570021984] [2025-01-23 20:01:34,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:34,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:34,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-01-23 20:01:34,881 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-01-23 20:01:34,881 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:34,881 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:34,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-23 20:01:34,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:01:35,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:35,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1570021984] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:35,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:01:35,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-01-23 20:01:35,029 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-23 20:01:35,029 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 96 is hopeless, skipping. [2025-01-23 20:01:35,029 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 97 is hopeless, skipping. [2025-01-23 20:01:35,029 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 106 is hopeless, skipping. [2025-01-23 20:01:35,029 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 114 [2025-01-23 20:01:35,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 6 [2025-01-23 20:01:35,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:01:35,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1847519434, now seen corresponding path program 1 times [2025-01-23 20:01:35,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:01:35,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712636654] [2025-01-23 20:01:35,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:35,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:35,250 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-01-23 20:01:35,296 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-01-23 20:01:35,296 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:35,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:35,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:35,667 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-23 20:01:35,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712636654] [2025-01-23 20:01:35,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712636654] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:35,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1330533783] [2025-01-23 20:01:35,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:35,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:35,688 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-01-23 20:01:35,727 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-01-23 20:01:35,727 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:35,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:35,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-23 20:01:35,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:01:35,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:35,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1330533783] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:35,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:01:35,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-01-23 20:01:35,865 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-23 20:01:35,865 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 123 [2025-01-23 20:01:36,152 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 20:01:36,153 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 96 treesize of output 51 [2025-01-23 20:01:44,520 WARN L331 ript$VariableManager]: TermVariable v_~q2~0.offset_In_5 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:01:44,520 WARN L331 ript$VariableManager]: TermVariable v_~q1_front~0_In_4 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:01:44,520 WARN L331 ript$VariableManager]: TermVariable v_~q2~0.base_In_5 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:01:44,520 WARN L331 ript$VariableManager]: TermVariable v_~q2_front~0_In_5 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:01:44,520 WARN L331 ript$VariableManager]: TermVariable v_~q1~0.offset_In_4 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:01:44,520 WARN L331 ript$VariableManager]: TermVariable v_~q1~0.base_In_4 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:01:44,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:01:44,522 INFO L85 PathProgramCache]: Analyzing trace with hash -240723709, now seen corresponding path program 1 times [2025-01-23 20:01:44,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:01:44,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314192381] [2025-01-23 20:01:44,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:44,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:44,538 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-01-23 20:01:44,591 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-01-23 20:01:44,592 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:44,592 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:44,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:44,927 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-23 20:01:44,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314192381] [2025-01-23 20:01:44,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314192381] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:44,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1860214830] [2025-01-23 20:01:44,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:44,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:44,942 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-01-23 20:01:44,980 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-01-23 20:01:44,981 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:44,981 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:44,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-23 20:01:44,987 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:01:45,107 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:45,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1860214830] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:45,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:01:45,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-01-23 20:01:45,108 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-23 20:01:45,108 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 144 is hopeless, skipping. [2025-01-23 20:01:45,108 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 148 is hopeless, skipping. [2025-01-23 20:01:45,108 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 160 [2025-01-23 20:01:45,109 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:01:45,109 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 20:01:45,109 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:01:45,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:01:45,109 INFO L85 PathProgramCache]: Analyzing trace with hash -134087088, now seen corresponding path program 1 times [2025-01-23 20:01:45,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:01:45,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746311406] [2025-01-23 20:01:45,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:45,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:45,128 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-01-23 20:01:45,183 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-01-23 20:01:45,184 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:45,184 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:45,665 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:45,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:01:45,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746311406] [2025-01-23 20:01:45,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746311406] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:45,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096911] [2025-01-23 20:01:45,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:45,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:01:45,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:01:45,670 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:01:45,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-23 20:01:45,764 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-01-23 20:01:45,857 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-01-23 20:01:45,857 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:45,858 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:45,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 733 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-23 20:01:45,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:01:45,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:45,968 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:01:46,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:46,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096911] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:01:46,080 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 20:01:46,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2025-01-23 20:01:46,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976315229] [2025-01-23 20:01:46,080 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 20:01:46,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-01-23 20:01:46,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:01:46,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-01-23 20:01:46,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2025-01-23 20:01:46,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:01:46,082 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:01:46,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.933333333333334) internal successors, (104), 14 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 20:01:46,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:01:46,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:01:46,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:01:46,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:01:46,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:01:46,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:01:46,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-23 20:01:46,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable3,SelfDestructingSolverStorable2,SelfDestructingSolverStorable8,SelfDestructingSolverStorable7,SelfDestructingSolverStorable6,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5,SelfDestructingSolverStorable10,SelfDestructingSolverStorable11,SelfDestructingSolverStorable12,SelfDestructingSolverStorable9,SelfDestructingSolverStorable13,SelfDestructingSolverStorable14 [2025-01-23 20:01:46,522 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-01-23 20:01:46,522 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:01:46,523 INFO L139 ounterexampleChecker]: Examining path program with hash -282745873, occurence #4 [2025-01-23 20:01:46,523 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 20:01:46,523 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-23 20:01:46,523 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:01:46,523 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-01-23 20:01:46,523 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:01:46,523 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-01-23 20:01:46,523 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:01:46,523 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-01-23 20:01:46,524 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:01:46,525 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-23 20:01:46,525 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:01:46,525 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 66 [2025-01-23 20:01:46,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 6 [2025-01-23 20:01:46,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:01:46,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1254778544, now seen corresponding path program 1 times [2025-01-23 20:01:46,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:01:46,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751694521] [2025-01-23 20:01:46,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:46,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:46,735 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-01-23 20:01:46,750 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-01-23 20:01:46,750 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:46,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:46,944 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:46,944 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-23 20:01:46,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751694521] [2025-01-23 20:01:46,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751694521] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:46,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1559217708] [2025-01-23 20:01:46,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:46,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:46,956 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-01-23 20:01:46,973 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-01-23 20:01:46,974 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:46,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:46,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-23 20:01:46,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:01:47,132 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:47,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1559217708] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:47,133 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:01:47,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2025-01-23 20:01:47,133 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-23 20:01:47,133 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 77 [2025-01-23 20:01:47,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2025-01-23 20:01:47,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:01:47,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1651715963, now seen corresponding path program 1 times [2025-01-23 20:01:47,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:01:47,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263537642] [2025-01-23 20:01:47,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:47,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:47,377 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-01-23 20:01:47,404 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-01-23 20:01:47,404 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:47,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:47,605 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:47,606 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-23 20:01:47,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263537642] [2025-01-23 20:01:47,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263537642] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:47,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [2075163717] [2025-01-23 20:01:47,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:47,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:47,616 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-01-23 20:01:47,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-01-23 20:01:47,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:47,634 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:47,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-23 20:01:47,637 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:01:47,874 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:47,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [2075163717] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:47,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:01:47,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2025-01-23 20:01:47,875 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-23 20:01:47,875 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 78 [2025-01-23 20:01:48,135 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 20:01:48,136 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 96 treesize of output 51 [2025-01-23 20:01:49,730 WARN L331 ript$VariableManager]: TermVariable v_~q2~0.offset_In_7 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:01:49,730 WARN L331 ript$VariableManager]: TermVariable v_~q2_front~0_In_7 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:01:49,731 WARN L331 ript$VariableManager]: TermVariable v_~q1_front~0_In_6 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:01:49,731 WARN L331 ript$VariableManager]: TermVariable v_~q1~0.base_In_6 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:01:49,731 WARN L331 ript$VariableManager]: TermVariable v_~q2~0.base_In_7 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:01:49,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:01:49,732 INFO L85 PathProgramCache]: Analyzing trace with hash -336415249, now seen corresponding path program 1 times [2025-01-23 20:01:49,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:01:49,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551534651] [2025-01-23 20:01:49,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:49,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:49,743 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-01-23 20:01:49,756 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-01-23 20:01:49,756 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:49,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:49,987 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:49,988 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-23 20:01:49,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551534651] [2025-01-23 20:01:49,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551534651] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:49,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1022071561] [2025-01-23 20:01:49,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:49,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:49,999 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-01-23 20:01:50,017 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-01-23 20:01:50,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:50,018 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:50,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-23 20:01:50,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:01:50,260 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:50,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1022071561] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:50,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:01:50,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2025-01-23 20:01:50,260 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-23 20:01:50,260 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 86 [2025-01-23 20:01:50,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2025-01-23 20:01:50,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:01:50,446 INFO L85 PathProgramCache]: Analyzing trace with hash 913487282, now seen corresponding path program 1 times [2025-01-23 20:01:50,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:01:50,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737569372] [2025-01-23 20:01:50,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:50,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:50,458 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-01-23 20:01:50,474 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-01-23 20:01:50,474 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:50,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:50,730 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:50,731 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-23 20:01:50,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737569372] [2025-01-23 20:01:50,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737569372] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:50,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1638609942] [2025-01-23 20:01:50,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:50,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:50,745 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-01-23 20:01:50,765 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-01-23 20:01:50,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:50,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:50,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-23 20:01:50,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:01:51,007 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:01:51,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1638609942] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:51,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:01:51,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2025-01-23 20:01:51,008 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-23 20:01:51,008 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 97 is hopeless, skipping. [2025-01-23 20:01:51,008 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 98 is hopeless, skipping. [2025-01-23 20:01:51,008 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 107 is hopeless, skipping. [2025-01-23 20:01:51,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 115 [2025-01-23 20:01:51,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 6 [2025-01-23 20:01:51,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:01:51,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1364289316, now seen corresponding path program 1 times [2025-01-23 20:01:51,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:01:51,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434667878] [2025-01-23 20:01:51,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:51,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:51,171 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-01-23 20:01:51,194 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-01-23 20:01:51,194 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:51,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:51,437 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-23 20:01:51,437 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-23 20:01:51,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434667878] [2025-01-23 20:01:51,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434667878] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:51,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [326014632] [2025-01-23 20:01:51,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:51,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:51,452 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-01-23 20:01:51,480 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-01-23 20:01:51,480 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:51,480 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:51,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-23 20:01:51,485 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:01:51,621 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-23 20:01:51,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [326014632] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:51,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:01:51,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2025-01-23 20:01:51,622 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-23 20:01:51,622 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2025-01-23 20:01:51,923 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 20:01:51,923 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 96 treesize of output 51 [2025-01-23 20:01:52,773 WARN L331 ript$VariableManager]: TermVariable v_~q2~0.offset_In_9 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:01:52,774 WARN L331 ript$VariableManager]: TermVariable v_~q2~0.base_In_9 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:01:52,774 WARN L331 ript$VariableManager]: TermVariable v_~q2_front~0_In_9 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:01:52,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:01:52,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1628040141, now seen corresponding path program 1 times [2025-01-23 20:01:52,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:01:52,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344688812] [2025-01-23 20:01:52,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:52,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:52,793 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-01-23 20:01:52,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-01-23 20:01:52,825 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:52,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:53,095 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-23 20:01:53,095 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-23 20:01:53,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344688812] [2025-01-23 20:01:53,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344688812] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:53,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [809835899] [2025-01-23 20:01:53,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:53,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:53,110 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-01-23 20:01:53,140 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-01-23 20:01:53,140 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:53,140 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:53,143 INFO L256 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-23 20:01:53,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:01:53,280 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-23 20:01:53,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [809835899] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:53,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:01:53,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2025-01-23 20:01:53,280 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-23 20:01:53,280 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 145 is hopeless, skipping. [2025-01-23 20:01:53,280 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 149 is hopeless, skipping. [2025-01-23 20:01:53,281 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 161 [2025-01-23 20:01:53,281 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:01:53,281 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 20:01:53,281 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:01:53,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:01:53,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1586100488, now seen corresponding path program 2 times [2025-01-23 20:01:53,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:01:53,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980057528] [2025-01-23 20:01:53,281 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 20:01:53,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:53,299 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 165 statements into 2 equivalence classes. [2025-01-23 20:01:53,333 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 162 of 165 statements. [2025-01-23 20:01:53,334 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-23 20:01:53,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:53,555 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-23 20:01:53,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:01:53,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980057528] [2025-01-23 20:01:53,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980057528] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 20:01:53,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 20:01:53,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 20:01:53,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164636173] [2025-01-23 20:01:53,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 20:01:53,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-23 20:01:53,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:01:53,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-23 20:01:53,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-23 20:01:53,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:01:53,559 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:01:53,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 20:01:53,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:01:53,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:01:53,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:01:53,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:01:53,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:01:53,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:01:53,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:01:53,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:01:53,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,SelfDestructingSolverStorable18,SelfDestructingSolverStorable19,SelfDestructingSolverStorable21,SelfDestructingSolverStorable22,SelfDestructingSolverStorable23,SelfDestructingSolverStorable24,SelfDestructingSolverStorable25,SelfDestructingSolverStorable15,SelfDestructingSolverStorable26,SelfDestructingSolverStorable16,SelfDestructingSolverStorable27,SelfDestructingSolverStorable17 [2025-01-23 20:01:53,739 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-01-23 20:01:53,739 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:01:53,739 INFO L139 ounterexampleChecker]: Examining path program with hash -643945311, occurence #1 [2025-01-23 20:01:53,739 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:01:53,739 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:01:53,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:01:53,740 INFO L85 PathProgramCache]: Analyzing trace with hash -631857373, now seen corresponding path program 3 times [2025-01-23 20:01:53,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:01:53,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590706293] [2025-01-23 20:01:53,740 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 20:01:53,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:53,762 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 204 statements into 4 equivalence classes. [2025-01-23 20:01:54,332 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 168 of 204 statements. [2025-01-23 20:01:54,332 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-23 20:01:54,332 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:55,094 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-01-23 20:01:55,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:01:55,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590706293] [2025-01-23 20:01:55,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590706293] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:55,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240220482] [2025-01-23 20:01:55,095 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 20:01:55,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:01:55,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:01:55,098 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:01:55,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-23 20:01:55,206 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 204 statements into 4 equivalence classes. [2025-01-23 20:01:55,303 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 168 of 204 statements. [2025-01-23 20:01:55,303 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-23 20:01:55,303 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:55,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-01-23 20:01:55,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:01:56,080 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-01-23 20:01:56,080 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:01:56,702 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-01-23 20:01:56,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240220482] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:01:56,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 20:01:56,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 17] total 47 [2025-01-23 20:01:56,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38179993] [2025-01-23 20:01:56,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 20:01:56,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-01-23 20:01:56,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:01:56,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-01-23 20:01:56,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=667, Invalid=1589, Unknown=0, NotChecked=0, Total=2256 [2025-01-23 20:01:56,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:01:56,707 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:01:56,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 7.416666666666667) internal successors, (356), 47 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 20:01:56,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:01:56,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:01:56,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:01:56,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:01:56,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:01:57,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:01:57,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:01:57,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:01:57,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:01:57,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 20:01:57,224 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-23 20:01:57,416 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,SelfDestructingSolverStorable28 [2025-01-23 20:01:57,416 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-01-23 20:01:57,416 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:01:57,416 INFO L139 ounterexampleChecker]: Examining path program with hash -643945311, occurence #2 [2025-01-23 20:01:57,416 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 20:01:57,416 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-23 20:01:57,416 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:01:57,416 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-01-23 20:01:57,417 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:01:57,417 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-01-23 20:01:57,417 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:01:57,417 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-23 20:01:57,417 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:01:57,417 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-01-23 20:01:57,417 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:01:57,417 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 117 [2025-01-23 20:01:57,527 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 28 treesize of output 12 [2025-01-23 20:01:57,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:01:57,649 INFO L85 PathProgramCache]: Analyzing trace with hash -540922904, now seen corresponding path program 1 times [2025-01-23 20:01:57,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:01:57,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635981785] [2025-01-23 20:01:57,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:57,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:57,663 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-01-23 20:01:57,693 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-01-23 20:01:57,694 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:57,694 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:57,934 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-01-23 20:01:57,935 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-23 20:01:57,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635981785] [2025-01-23 20:01:57,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635981785] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:57,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [890469137] [2025-01-23 20:01:57,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:57,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:57,949 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-01-23 20:01:57,985 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-01-23 20:01:57,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:57,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:01:57,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-23 20:01:57,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:01:58,143 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-01-23 20:01:58,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [890469137] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:01:58,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:01:58,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2025-01-23 20:01:58,144 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-23 20:01:58,144 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 118 [2025-01-23 20:01:58,397 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 20:01:58,397 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 96 treesize of output 51 [2025-01-23 20:01:59,874 WARN L331 ript$VariableManager]: TermVariable v_~q1_front~0_In_10 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:01:59,874 WARN L331 ript$VariableManager]: TermVariable v_~q1~0.offset_In_10 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:01:59,874 WARN L331 ript$VariableManager]: TermVariable v_~q1~0.base_In_10 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:01:59,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:01:59,875 INFO L85 PathProgramCache]: Analyzing trace with hash 411255920, now seen corresponding path program 1 times [2025-01-23 20:01:59,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:01:59,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384737758] [2025-01-23 20:01:59,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:01:59,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:01:59,889 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes. [2025-01-23 20:01:59,915 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 119 of 119 statements. [2025-01-23 20:01:59,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:01:59,916 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:02:00,149 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-01-23 20:02:00,150 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-23 20:02:00,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384737758] [2025-01-23 20:02:00,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384737758] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:02:00,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1003743202] [2025-01-23 20:02:00,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:02:00,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:02:00,165 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes. [2025-01-23 20:02:00,199 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 119 of 119 statements. [2025-01-23 20:02:00,199 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:02:00,199 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:02:00,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-23 20:02:00,206 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:02:00,360 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-01-23 20:02:00,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1003743202] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:02:00,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:02:00,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2025-01-23 20:02:00,360 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-23 20:02:00,360 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 127 [2025-01-23 20:02:00,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2025-01-23 20:02:00,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:02:00,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1887195399, now seen corresponding path program 1 times [2025-01-23 20:02:00,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:02:00,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177917726] [2025-01-23 20:02:00,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:02:00,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:02:00,494 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-01-23 20:02:00,521 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-01-23 20:02:00,522 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:02:00,522 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:02:00,759 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-01-23 20:02:00,759 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-23 20:02:00,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177917726] [2025-01-23 20:02:00,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177917726] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:02:00,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [751914153] [2025-01-23 20:02:00,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:02:00,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:02:00,774 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-01-23 20:02:00,810 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-01-23 20:02:00,811 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:02:00,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:02:00,813 INFO L256 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-23 20:02:00,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:02:00,992 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-01-23 20:02:00,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [751914153] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:02:00,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:02:00,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2025-01-23 20:02:00,992 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-23 20:02:00,992 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 135 [2025-01-23 20:02:01,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 6 [2025-01-23 20:02:01,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:02:01,126 INFO L85 PathProgramCache]: Analyzing trace with hash -5705281, now seen corresponding path program 1 times [2025-01-23 20:02:01,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:02:01,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800364356] [2025-01-23 20:02:01,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:02:01,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:02:01,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-01-23 20:02:01,174 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-01-23 20:02:01,174 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:02:01,174 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:02:01,429 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2025-01-23 20:02:01,430 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-23 20:02:01,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800364356] [2025-01-23 20:02:01,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800364356] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:02:01,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [530238957] [2025-01-23 20:02:01,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:02:01,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:02:01,444 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-01-23 20:02:01,485 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-01-23 20:02:01,485 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:02:01,485 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:02:01,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-23 20:02:01,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:02:01,642 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2025-01-23 20:02:01,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [530238957] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:02:01,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:02:01,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2025-01-23 20:02:01,643 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-23 20:02:01,643 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 144 [2025-01-23 20:02:01,859 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 20:02:01,859 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 96 treesize of output 51 [2025-01-23 20:02:05,060 WARN L331 ript$VariableManager]: TermVariable v_~q2_front~0_In_12 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:02:05,060 WARN L331 ript$VariableManager]: TermVariable v_~q1~0.offset_In_12 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:02:05,060 WARN L331 ript$VariableManager]: TermVariable v_~q2~0.base_In_12 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:02:05,060 WARN L331 ript$VariableManager]: TermVariable v_~q1_front~0_In_12 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:02:05,060 WARN L331 ript$VariableManager]: TermVariable v_~q1~0.base_In_12 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:02:05,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:02:05,060 INFO L85 PathProgramCache]: Analyzing trace with hash 824562811, now seen corresponding path program 1 times [2025-01-23 20:02:05,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:02:05,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449895345] [2025-01-23 20:02:05,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:02:05,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:02:05,075 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-01-23 20:02:05,105 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-01-23 20:02:05,105 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:02:05,105 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:02:05,348 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-01-23 20:02:05,348 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-23 20:02:05,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449895345] [2025-01-23 20:02:05,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449895345] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:02:05,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [924600181] [2025-01-23 20:02:05,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:02:05,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:02:05,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-01-23 20:02:05,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-01-23 20:02:05,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:02:05,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:02:05,415 INFO L256 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-23 20:02:05,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:02:05,554 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-01-23 20:02:05,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [924600181] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:02:05,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:02:05,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2025-01-23 20:02:05,555 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-23 20:02:05,555 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 174 is hopeless, skipping. [2025-01-23 20:02:05,555 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 183 is hopeless, skipping. [2025-01-23 20:02:05,555 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 204 [2025-01-23 20:02:05,555 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:02:05,556 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 20:02:05,556 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:02:05,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:02:05,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1305840931, now seen corresponding path program 4 times [2025-01-23 20:02:05,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:02:05,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398359654] [2025-01-23 20:02:05,556 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 20:02:05,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:02:05,577 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 208 statements into 2 equivalence classes. [2025-01-23 20:02:05,641 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 208 of 208 statements. [2025-01-23 20:02:05,641 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-23 20:02:05,641 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:02:06,161 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-23 20:02:06,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:02:06,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398359654] [2025-01-23 20:02:06,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398359654] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:02:06,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71911915] [2025-01-23 20:02:06,162 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 20:02:06,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:02:06,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:02:06,164 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:02:06,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-23 20:02:06,284 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 208 statements into 2 equivalence classes. [2025-01-23 20:02:06,376 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 208 of 208 statements. [2025-01-23 20:02:06,376 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-23 20:02:06,376 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:02:06,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-01-23 20:02:06,382 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:02:06,990 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 42 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:02:06,990 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:02:07,591 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 40 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:02:07,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71911915] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:02:07,591 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 20:02:07,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 19, 19] total 40 [2025-01-23 20:02:07,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122638537] [2025-01-23 20:02:07,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 20:02:07,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2025-01-23 20:02:07,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:02:07,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2025-01-23 20:02:07,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=423, Invalid=1217, Unknown=0, NotChecked=0, Total=1640 [2025-01-23 20:02:07,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:02:07,594 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:02:07,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 8.658536585365853) internal successors, (355), 40 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 20:02:07,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:07,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:07,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:02:07,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:07,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 20:02:07,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:02:08,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:08,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:08,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:02:08,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:08,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 20:02:08,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-23 20:02:08,276 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-23 20:02:08,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,SelfDestructingSolverStorable30,SelfDestructingSolverStorable31,SelfDestructingSolverStorable32,SelfDestructingSolverStorable33,SelfDestructingSolverStorable34,SelfDestructingSolverStorable35,SelfDestructingSolverStorable36,SelfDestructingSolverStorable37,SelfDestructingSolverStorable38,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2025-01-23 20:02:08,467 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-01-23 20:02:08,467 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:02:08,467 INFO L139 ounterexampleChecker]: Examining path program with hash 47909932, occurence #1 [2025-01-23 20:02:08,467 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:02:08,467 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:02:08,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:02:08,468 INFO L85 PathProgramCache]: Analyzing trace with hash -513934871, now seen corresponding path program 5 times [2025-01-23 20:02:08,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:02:08,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198099276] [2025-01-23 20:02:08,468 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 20:02:08,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:02:08,482 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 141 statements into 6 equivalence classes. [2025-01-23 20:02:08,606 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 141 of 141 statements. [2025-01-23 20:02:08,607 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-01-23 20:02:08,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:02:09,053 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 45 proven. 13 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-01-23 20:02:09,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:02:09,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198099276] [2025-01-23 20:02:09,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198099276] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:02:09,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288859996] [2025-01-23 20:02:09,053 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 20:02:09,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:02:09,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:02:09,055 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:02:09,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-23 20:02:09,163 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 141 statements into 6 equivalence classes. [2025-01-23 20:02:09,319 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 141 of 141 statements. [2025-01-23 20:02:09,319 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-01-23 20:02:09,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:02:09,321 INFO L256 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-23 20:02:09,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:02:09,549 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 29 proven. 14 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-23 20:02:09,549 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:02:09,776 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 42 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-23 20:02:09,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288859996] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:02:09,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 20:02:09,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 9] total 28 [2025-01-23 20:02:09,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131418635] [2025-01-23 20:02:09,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 20:02:09,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-01-23 20:02:09,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:02:09,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-01-23 20:02:09,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=539, Unknown=0, NotChecked=0, Total=756 [2025-01-23 20:02:09,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:02:09,778 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:02:09,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.178571428571429) internal successors, (257), 28 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 20:02:09,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:09,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:09,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:02:09,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:09,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 20:02:09,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-01-23 20:02:09,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:02:10,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:10,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:10,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:02:10,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:10,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 20:02:10,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-23 20:02:10,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 20:02:10,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-23 20:02:10,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:02:10,454 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-01-23 20:02:10,454 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:02:10,454 INFO L139 ounterexampleChecker]: Examining path program with hash 1876273832, occurence #1 [2025-01-23 20:02:10,455 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:02:10,455 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:02:10,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:02:10,455 INFO L85 PathProgramCache]: Analyzing trace with hash 802652491, now seen corresponding path program 6 times [2025-01-23 20:02:10,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:02:10,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694479847] [2025-01-23 20:02:10,455 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-23 20:02:10,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:02:10,470 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 82 statements into 6 equivalence classes. [2025-01-23 20:02:10,501 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) and asserted 63 of 82 statements. [2025-01-23 20:02:10,501 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-01-23 20:02:10,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:02:11,043 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-01-23 20:02:11,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:02:11,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694479847] [2025-01-23 20:02:11,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694479847] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:02:11,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919025673] [2025-01-23 20:02:11,044 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-23 20:02:11,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:02:11,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:02:11,047 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:02:11,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-23 20:02:11,146 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 82 statements into 6 equivalence classes. [2025-01-23 20:02:11,190 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) and asserted 63 of 82 statements. [2025-01-23 20:02:11,191 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-01-23 20:02:11,191 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:02:11,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-01-23 20:02:11,194 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:02:11,516 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2025-01-23 20:02:11,516 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:02:11,790 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-01-23 20:02:11,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919025673] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:02:11,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 20:02:11,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 25 [2025-01-23 20:02:11,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876776511] [2025-01-23 20:02:11,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 20:02:11,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-01-23 20:02:11,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:02:11,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-01-23 20:02:11,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=508, Unknown=0, NotChecked=0, Total=650 [2025-01-23 20:02:11,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:02:11,792 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:02:11,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.769230769230769) internal successors, (124), 25 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 20:02:11,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:11,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:11,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:02:11,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:11,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 20:02:11,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-01-23 20:02:11,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 20:02:11,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:02:12,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:12,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:12,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:02:12,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:12,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 20:02:12,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-23 20:02:12,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 20:02:12,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-01-23 20:02:12,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-23 20:02:12,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:02:12,927 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-01-23 20:02:12,927 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:02:12,927 INFO L139 ounterexampleChecker]: Examining path program with hash 556774439, occurence #1 [2025-01-23 20:02:12,927 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:02:12,927 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:02:12,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:02:12,927 INFO L85 PathProgramCache]: Analyzing trace with hash -786724168, now seen corresponding path program 7 times [2025-01-23 20:02:12,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:02:12,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225158515] [2025-01-23 20:02:12,927 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-23 20:02:12,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:02:12,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-01-23 20:02:12,984 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-01-23 20:02:12,984 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:02:12,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:02:13,500 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-01-23 20:02:13,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:02:13,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225158515] [2025-01-23 20:02:13,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225158515] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:02:13,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710323784] [2025-01-23 20:02:13,501 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-23 20:02:13,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:02:13,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:02:13,503 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:02:13,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-23 20:02:13,594 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-01-23 20:02:13,636 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-01-23 20:02:13,636 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:02:13,636 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:02:13,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-01-23 20:02:13,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:02:14,099 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-01-23 20:02:14,099 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:02:14,517 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2025-01-23 20:02:14,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710323784] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:02:14,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 20:02:14,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15, 12] total 35 [2025-01-23 20:02:14,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231626737] [2025-01-23 20:02:14,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 20:02:14,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2025-01-23 20:02:14,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:02:14,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2025-01-23 20:02:14,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=1103, Unknown=0, NotChecked=0, Total=1260 [2025-01-23 20:02:14,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:02:14,519 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:02:14,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.805555555555555) internal successors, (173), 35 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 20:02:14,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:14,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:14,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:02:14,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:14,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 20:02:14,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-01-23 20:02:14,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 20:02:14,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2025-01-23 20:02:14,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:02:21,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:21,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:21,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:02:21,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:21,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 20:02:21,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-23 20:02:21,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 20:02:21,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-01-23 20:02:21,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2025-01-23 20:02:21,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-23 20:02:21,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:02:21,272 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-01-23 20:02:21,272 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:02:21,272 INFO L139 ounterexampleChecker]: Examining path program with hash 1124512252, occurence #1 [2025-01-23 20:02:21,273 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:02:21,273 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:02:21,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:02:21,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1428511582, now seen corresponding path program 8 times [2025-01-23 20:02:21,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:02:21,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522128003] [2025-01-23 20:02:21,273 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 20:02:21,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:02:21,286 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 92 statements into 2 equivalence classes. [2025-01-23 20:02:21,307 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 92 of 92 statements. [2025-01-23 20:02:21,307 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 20:02:21,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:02:21,705 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2025-01-23 20:02:21,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:02:21,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522128003] [2025-01-23 20:02:21,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522128003] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:02:21,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256797583] [2025-01-23 20:02:21,706 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 20:02:21,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:02:21,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:02:21,708 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:02:21,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-23 20:02:21,819 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 92 statements into 2 equivalence classes. [2025-01-23 20:02:21,879 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 92 of 92 statements. [2025-01-23 20:02:21,879 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 20:02:21,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:02:21,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-01-23 20:02:21,887 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:02:22,177 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-01-23 20:02:22,177 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:02:22,431 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2025-01-23 20:02:22,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256797583] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:02:22,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 20:02:22,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 10] total 25 [2025-01-23 20:02:22,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644763803] [2025-01-23 20:02:22,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 20:02:22,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-01-23 20:02:22,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:02:22,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-01-23 20:02:22,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=566, Unknown=0, NotChecked=0, Total=650 [2025-01-23 20:02:22,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:02:22,433 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:02:22,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.884615384615385) internal successors, (179), 25 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 20:02:22,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:22,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:22,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:02:22,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:22,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 20:02:22,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-01-23 20:02:22,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 20:02:22,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2025-01-23 20:02:22,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2025-01-23 20:02:22,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:02:26,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:26,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:26,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:02:26,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:02:26,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 20:02:26,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-23 20:02:26,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 20:02:26,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-01-23 20:02:26,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2025-01-23 20:02:26,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2025-01-23 20:02:26,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-23 20:02:26,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:02:26,859 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-01-23 20:02:26,859 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:02:26,859 INFO L139 ounterexampleChecker]: Examining path program with hash -1550107651, occurence #1 [2025-01-23 20:02:26,859 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:02:26,860 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:02:26,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:02:26,860 INFO L85 PathProgramCache]: Analyzing trace with hash 790600302, now seen corresponding path program 9 times [2025-01-23 20:02:26,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:02:26,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043516556] [2025-01-23 20:02:26,860 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 20:02:26,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:02:26,874 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 99 statements into 6 equivalence classes. [2025-01-23 20:02:27,062 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 97 of 99 statements. [2025-01-23 20:02:27,062 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-01-23 20:02:27,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:02:31,466 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 1 proven. 116 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-01-23 20:02:31,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:02:31,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043516556] [2025-01-23 20:02:31,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043516556] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:02:31,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018127646] [2025-01-23 20:02:31,466 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 20:02:31,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:02:31,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:02:31,468 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:02:31,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-23 20:02:31,579 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 99 statements into 6 equivalence classes. [2025-01-23 20:02:31,730 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 97 of 99 statements. [2025-01-23 20:02:31,730 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-01-23 20:02:31,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:02:31,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 93 conjuncts are in the unsatisfiable core [2025-01-23 20:02:31,735 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:02:31,940 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 25 treesize of output 1 [2025-01-23 20:02:31,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2025-01-23 20:02:35,671 INFO L349 Elim1Store]: treesize reduction 564, result has 21.7 percent of original size [2025-01-23 20:02:35,672 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 11 new quantified variables, introduced 55 case distinctions, treesize of input 227 treesize of output 196 [2025-01-23 20:02:35,697 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-01-23 20:02:35,697 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:02:41,358 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 20:02:41,359 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 86262 treesize of output 80910 [2025-01-23 20:02:41,620 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-23 20:02:41,621 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-23 20:02:41,622 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-23 20:02:41,622 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-23 20:02:41,623 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-23 20:02:41,623 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-23 20:02:41,784 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 20:02:41,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 22 case distinctions, treesize of input 31362 treesize of output 28016 [2025-01-23 20:03:56,377 WARN L286 SmtUtils]: Spent 5.41s on a formula simplification. DAG size of input: 445 DAG size of output: 421 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2025-01-23 20:03:56,378 INFO L349 Elim1Store]: treesize reduction 48, result has 96.6 percent of original size [2025-01-23 20:03:56,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 1226759 treesize of output 617594 [2025-01-23 20:07:10,172 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2025-01-23 20:07:10,172 WARN L249 Executor]: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2025-01-23 20:07:10,173 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2025-01-23 20:07:10,181 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-23 20:07:10,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:07:10,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-01-23 20:07:10,415 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.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) ... 78 more [2025-01-23 20:07:10,422 INFO L158 Benchmark]: Toolchain (without parser) took 345642.70ms. Allocated memory was 117.4MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 92.5MB in the beginning and 1.6GB in the end (delta: -1.6GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2025-01-23 20:07:10,422 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory was 61.0MB in the beginning and 61.0MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 20:07:10,423 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.86ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 77.8MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-23 20:07:10,423 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.45ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 75.3MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 20:07:10,423 INFO L158 Benchmark]: Boogie Preprocessor took 35.26ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 73.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 20:07:10,423 INFO L158 Benchmark]: RCFGBuilder took 831.06ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 47.7MB in the end (delta: 26.1MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2025-01-23 20:07:10,423 INFO L158 Benchmark]: TraceAbstraction took 344408.81ms. Allocated memory was 117.4MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 46.9MB in the beginning and 1.6GB in the end (delta: -1.6GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2025-01-23 20:07:10,426 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory was 61.0MB in the beginning and 61.0MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.86ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 77.8MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.45ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 75.3MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.26ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 73.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 831.06ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 47.7MB in the end (delta: 26.1MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. * TraceAbstraction took 344408.81ms. Allocated memory was 117.4MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 46.9MB in the beginning and 1.6GB in the end (delta: -1.6GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult3.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 7888761977ccc49b1a75199021e374591654c6a4364e63bfc6c86e1c7bb7d64b --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-23 20:07:12,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-23 20:07:12,455 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2025-01-23 20:07:12,459 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-23 20:07:12,459 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-23 20:07:12,486 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-23 20:07:12,487 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-23 20:07:12,487 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-23 20:07:12,488 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-23 20:07:12,488 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-23 20:07:12,488 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-23 20:07:12,488 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-23 20:07:12,488 INFO L153 SettingsManager]: * Use SBE=true [2025-01-23 20:07:12,489 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-23 20:07:12,489 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-23 20:07:12,489 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-23 20:07:12,489 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-23 20:07:12,489 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-23 20:07:12,489 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-23 20:07:12,489 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-23 20:07:12,489 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-23 20:07:12,490 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-23 20:07:12,490 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-23 20:07:12,490 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-23 20:07:12,490 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-23 20:07:12,490 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-23 20:07:12,490 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-23 20:07:12,490 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-23 20:07:12,490 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-23 20:07:12,491 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-23 20:07:12,491 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-23 20:07:12,491 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 20:07:12,491 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-23 20:07:12,491 INFO L153 SettingsManager]: * Refinement strategy for commutativity condition synthesis=FOX [2025-01-23 20:07:12,491 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-23 20:07:12,491 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-23 20:07:12,491 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-23 20:07:12,491 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-23 20:07:12,492 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-23 20:07:12,492 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-23 20:07:12,492 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-23 20:07:12,492 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-23 20:07:12,492 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-23 20:07:12,492 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-23 20:07:12,492 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-23 20:07:12,492 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 -> 7888761977ccc49b1a75199021e374591654c6a4364e63bfc6c86e1c7bb7d64b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> SUFFICIENT [2025-01-23 20:07:12,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-23 20:07:12,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-23 20:07:12,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-23 20:07:12,757 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-23 20:07:12,757 INFO L274 PluginConnector]: CDTParser initialized [2025-01-23 20:07:12,758 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult3.wvr.c [2025-01-23 20:07:14,079 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/98b2237f7/4b083103dbf74e658710f2c62f9e7fd9/FLAG9c89d07d2 [2025-01-23 20:07:14,278 INFO L384 CDTParser]: Found 1 translation units. [2025-01-23 20:07:14,279 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-more-buffer-mult3.wvr.c [2025-01-23 20:07:14,287 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/98b2237f7/4b083103dbf74e658710f2c62f9e7fd9/FLAG9c89d07d2 [2025-01-23 20:07:14,303 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/98b2237f7/4b083103dbf74e658710f2c62f9e7fd9 [2025-01-23 20:07:14,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-23 20:07:14,306 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-23 20:07:14,307 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-23 20:07:14,310 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-23 20:07:14,314 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-23 20:07:14,316 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 08:07:14" (1/1) ... [2025-01-23 20:07:14,317 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70e9eb01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:07:14, skipping insertion in model container [2025-01-23 20:07:14,317 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 08:07:14" (1/1) ... [2025-01-23 20:07:14,339 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-23 20:07:14,511 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-more-buffer-mult3.wvr.c[4270,4283] [2025-01-23 20:07:14,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 20:07:14,541 INFO L200 MainTranslator]: Completed pre-run [2025-01-23 20:07:14,602 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-more-buffer-mult3.wvr.c[4270,4283] [2025-01-23 20:07:14,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 20:07:14,623 INFO L204 MainTranslator]: Completed translation [2025-01-23 20:07:14,624 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:07:14 WrapperNode [2025-01-23 20:07:14,624 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-23 20:07:14,625 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-23 20:07:14,625 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-23 20:07:14,625 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-23 20:07:14,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:07:14" (1/1) ... [2025-01-23 20:07:14,640 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:07:14" (1/1) ... [2025-01-23 20:07:14,670 INFO L138 Inliner]: procedures = 28, calls = 60, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 268 [2025-01-23 20:07:14,670 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-23 20:07:14,671 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-23 20:07:14,671 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-23 20:07:14,671 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-23 20:07:14,676 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:07:14" (1/1) ... [2025-01-23 20:07:14,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:07:14" (1/1) ... [2025-01-23 20:07:14,684 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:07:14" (1/1) ... [2025-01-23 20:07:14,684 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:07:14" (1/1) ... [2025-01-23 20:07:14,703 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:07:14" (1/1) ... [2025-01-23 20:07:14,708 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:07:14" (1/1) ... [2025-01-23 20:07:14,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:07:14" (1/1) ... [2025-01-23 20:07:14,717 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:07:14" (1/1) ... [2025-01-23 20:07:14,721 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:07:14" (1/1) ... [2025-01-23 20:07:14,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-23 20:07:14,724 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-23 20:07:14,725 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-23 20:07:14,725 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-23 20:07:14,726 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:07:14" (1/1) ... [2025-01-23 20:07:14,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 20:07:14,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:07:14,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-23 20:07:14,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-23 20:07:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-23 20:07:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2025-01-23 20:07:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-01-23 20:07:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-23 20:07:14,779 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-23 20:07:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-23 20:07:14,780 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-23 20:07:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-01-23 20:07:14,780 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-01-23 20:07:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-01-23 20:07:14,780 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-01-23 20:07:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-23 20:07:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-23 20:07:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-23 20:07:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-23 20:07:14,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-23 20:07:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-01-23 20:07:14,783 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-23 20:07:14,890 INFO L234 CfgBuilder]: Building ICFG [2025-01-23 20:07:14,893 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-23 20:07:15,366 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-23 20:07:15,366 INFO L283 CfgBuilder]: Performing block encoding [2025-01-23 20:07:15,743 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-23 20:07:15,743 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-23 20:07:15,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 08:07:15 BoogieIcfgContainer [2025-01-23 20:07:15,745 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-23 20:07:15,747 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-23 20:07:15,748 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-23 20:07:15,752 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-23 20:07:15,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 08:07:14" (1/3) ... [2025-01-23 20:07:15,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b1d343b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 08:07:15, skipping insertion in model container [2025-01-23 20:07:15,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:07:14" (2/3) ... [2025-01-23 20:07:15,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b1d343b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 08:07:15, skipping insertion in model container [2025-01-23 20:07:15,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 08:07:15" (3/3) ... [2025-01-23 20:07:15,754 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-mult3.wvr.c [2025-01-23 20:07:15,767 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-23 20:07:15,769 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-buffer-mult3.wvr.c that has 5 procedures, 45 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2025-01-23 20:07:15,769 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-23 20:07:15,833 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-01-23 20:07:15,872 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 20:07:15,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-23 20:07:15,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:07:15,876 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-23 20:07:15,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-23 20:07:15,963 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 20:07:15,977 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-23 20:07:15,983 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;@75f93735, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 20:07:15,983 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-01-23 20:07:18,645 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-01-23 20:07:18,646 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:07:18,646 INFO L139 ounterexampleChecker]: Examining path program with hash 211069056, occurence #1 [2025-01-23 20:07:18,646 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:07:18,646 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:07:18,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:07:18,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1212231480, now seen corresponding path program 1 times [2025-01-23 20:07:18,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 20:07:18,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1481253475] [2025-01-23 20:07:18,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:07:18,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:07:18,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:07:18,665 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:07:18,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-23 20:07:18,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-01-23 20:07:18,995 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-01-23 20:07:18,996 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:07:18,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:07:19,017 INFO L256 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-23 20:07:19,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:07:19,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:07:19,139 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-23 20:07:19,139 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 20:07:19,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481253475] [2025-01-23 20:07:19,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481253475] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 20:07:19,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 20:07:19,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 20:07:19,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249439581] [2025-01-23 20:07:19,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 20:07:19,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-23 20:07:19,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 20:07:19,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-23 20:07:19,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-23 20:07:19,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:07:19,165 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:07:19,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 20:07:19,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:07:19,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:19,348 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-23 20:07:19,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:07:19,533 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-01-23 20:07:19,534 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:07:19,534 INFO L139 ounterexampleChecker]: Examining path program with hash 211069056, occurence #2 [2025-01-23 20:07:19,534 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 20:07:19,534 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-23 20:07:19,535 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:07:19,535 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-23 20:07:19,549 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:07:19,549 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-01-23 20:07:19,549 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:07:19,550 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-01-23 20:07:19,550 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:07:19,550 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-01-23 20:07:19,550 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:07:19,550 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 64 [2025-01-23 20:07:19,942 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 13 treesize of output 5 [2025-01-23 20:07:20,282 WARN L331 ript$VariableManager]: TermVariable v_~j~0_In_1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:07:20,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:07:20,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1279051100, now seen corresponding path program 1 times [2025-01-23 20:07:20,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 20:07:20,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [258057706] [2025-01-23 20:07:20,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:07:20,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:07:20,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:07:20,285 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:07:20,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-23 20:07:20,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-01-23 20:07:20,414 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-01-23 20:07:20,414 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:07:20,414 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:07:20,423 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-23 20:07:20,426 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:07:20,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:07:20,527 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-23 20:07:20,528 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 20:07:20,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258057706] [2025-01-23 20:07:20,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258057706] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 20:07:20,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 20:07:20,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-23 20:07:20,531 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 64. Constructing proof automaton... [2025-01-23 20:07:20,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 20:07:20,532 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2025-01-23 20:07:20,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-23 20:07:20,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 20:07:20,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-23 20:07:20,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-23 20:07:20,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:07:20,536 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:07:20,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 20:07:20,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:20,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:07:20,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:20,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:20,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-23 20:07:20,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:07:20,902 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-01-23 20:07:20,903 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:07:20,903 INFO L139 ounterexampleChecker]: Examining path program with hash 211069056, occurence #3 [2025-01-23 20:07:20,903 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 20:07:20,904 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-23 20:07:20,904 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:07:20,904 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-01-23 20:07:20,904 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:07:20,904 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-01-23 20:07:20,904 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:07:20,904 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-01-23 20:07:20,904 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:07:20,904 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-01-23 20:07:20,904 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:07:20,904 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 65 [2025-01-23 20:07:21,204 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 13 treesize of output 5 [2025-01-23 20:07:21,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:07:21,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1602604390, now seen corresponding path program 1 times [2025-01-23 20:07:21,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 20:07:21,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [628321288] [2025-01-23 20:07:21,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:07:21,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:07:21,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:07:21,525 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:07:21,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-23 20:07:21,611 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-01-23 20:07:21,671 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-01-23 20:07:21,671 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:07:21,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:07:21,678 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-23 20:07:21,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:07:21,831 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:07:21,832 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:07:22,085 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:07:22,086 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 20:07:22,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628321288] [2025-01-23 20:07:22,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628321288] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:07:22,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:07:22,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2025-01-23 20:07:22,087 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-23 20:07:22,087 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2025-01-23 20:07:22,558 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 46 treesize of output 22 [2025-01-23 20:07:22,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:07:22,888 INFO L85 PathProgramCache]: Analyzing trace with hash 329189065, now seen corresponding path program 1 times [2025-01-23 20:07:22,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 20:07:22,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2038210602] [2025-01-23 20:07:22,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:07:22,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:07:22,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:07:22,892 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:07:22,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-23 20:07:22,971 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-01-23 20:07:23,035 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-01-23 20:07:23,035 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:07:23,035 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:07:23,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-23 20:07:23,049 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:07:23,293 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:07:23,294 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:07:23,348 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-23 20:07:23,348 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 20:07:23,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038210602] [2025-01-23 20:07:23,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038210602] provided 1 perfect and 1 imperfect interpolant sequences [2025-01-23 20:07:23,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-23 20:07:23,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 7 [2025-01-23 20:07:23,349 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 68. Constructing proof automaton... [2025-01-23 20:07:23,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 20:07:23,349 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2025-01-23 20:07:23,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-23 20:07:23,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 20:07:23,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 20:07:23,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-23 20:07:23,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:07:23,350 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:07:23,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 20:07:23,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:23,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:23,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:07:24,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:24,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:24,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:07:24,097 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-23 20:07:24,295 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-23 20:07:24,487 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,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:07:24,487 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-01-23 20:07:24,487 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:07:24,488 INFO L139 ounterexampleChecker]: Examining path program with hash 491955073, occurence #1 [2025-01-23 20:07:24,488 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:07:24,488 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:07:24,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:07:24,488 INFO L85 PathProgramCache]: Analyzing trace with hash 561425282, now seen corresponding path program 1 times [2025-01-23 20:07:24,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 20:07:24,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1215715883] [2025-01-23 20:07:24,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:07:24,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:07:24,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:07:24,492 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:07:24,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-23 20:07:24,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-01-23 20:07:24,771 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-01-23 20:07:24,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:07:24,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:07:24,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-23 20:07:24,801 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:07:24,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:07:24,932 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:07:25,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:07:25,143 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 20:07:25,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215715883] [2025-01-23 20:07:25,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215715883] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:07:25,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:07:25,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2025-01-23 20:07:25,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382791682] [2025-01-23 20:07:25,143 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-23 20:07:25,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-23 20:07:25,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 20:07:25,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-23 20:07:25,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-01-23 20:07:25,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:07:25,145 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:07:25,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 20:07:25,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:25,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:25,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:07:25,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:07:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:25,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:25,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:07:25,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:07:25,375 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-23 20:07:25,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:07:25,553 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-01-23 20:07:25,553 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:07:25,554 INFO L139 ounterexampleChecker]: Examining path program with hash 491955073, occurence #2 [2025-01-23 20:07:25,554 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 20:07:25,554 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-23 20:07:25,554 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:07:25,554 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-01-23 20:07:25,554 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:07:25,554 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-01-23 20:07:25,554 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:07:25,554 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-01-23 20:07:25,554 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:07:25,554 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-23 20:07:25,554 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:07:25,554 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 66 [2025-01-23 20:07:25,789 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 13 treesize of output 5 [2025-01-23 20:07:26,071 WARN L331 ript$VariableManager]: TermVariable v_~j~0_In_3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:07:26,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:07:26,072 INFO L85 PathProgramCache]: Analyzing trace with hash -455996646, now seen corresponding path program 1 times [2025-01-23 20:07:26,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 20:07:26,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [68385564] [2025-01-23 20:07:26,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:07:26,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:07:26,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:07:26,074 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:07:26,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-23 20:07:26,134 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-01-23 20:07:26,187 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-01-23 20:07:26,188 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:07:26,188 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:07:26,194 INFO L256 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-23 20:07:26,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:07:26,329 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-23 20:07:26,329 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:07:26,560 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-23 20:07:26,560 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 20:07:26,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68385564] [2025-01-23 20:07:26,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68385564] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:07:26,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:07:26,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-01-23 20:07:26,560 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-23 20:07:26,560 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 72 [2025-01-23 20:07:26,940 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 46 treesize of output 22 [2025-01-23 20:07:27,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:07:27,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1927699690, now seen corresponding path program 1 times [2025-01-23 20:07:27,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 20:07:27,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1534771694] [2025-01-23 20:07:27,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:07:27,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:07:27,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:07:27,198 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:07:27,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-23 20:07:27,262 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-01-23 20:07:27,322 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-01-23 20:07:27,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:07:27,322 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:07:27,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-23 20:07:27,331 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:07:27,584 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-23 20:07:27,585 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:07:27,644 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-23 20:07:27,644 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 20:07:27,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534771694] [2025-01-23 20:07:27,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534771694] provided 1 perfect and 1 imperfect interpolant sequences [2025-01-23 20:07:27,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-23 20:07:27,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2025-01-23 20:07:27,644 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 72. Constructing proof automaton... [2025-01-23 20:07:27,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 20:07:27,645 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2025-01-23 20:07:27,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-23 20:07:27,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 20:07:27,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 20:07:27,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-23 20:07:27,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:07:27,645 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:07:27,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 20:07:27,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:27,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:27,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:07:27,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:07:27,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:07:28,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:28,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:28,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:07:28,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:07:28,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:07:28,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-23 20:07:29,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-23 20:07:29,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:07:29,247 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-01-23 20:07:29,247 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:07:29,247 INFO L139 ounterexampleChecker]: Examining path program with hash 1257461404, occurence #1 [2025-01-23 20:07:29,247 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:07:29,247 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:07:29,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:07:29,247 INFO L85 PathProgramCache]: Analyzing trace with hash -683235340, now seen corresponding path program 2 times [2025-01-23 20:07:29,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 20:07:29,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1393469835] [2025-01-23 20:07:29,248 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 20:07:29,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:07:29,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:07:29,250 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:07:29,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-23 20:07:29,336 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 165 statements into 2 equivalence classes. [2025-01-23 20:07:29,469 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 162 of 165 statements. [2025-01-23 20:07:29,469 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-23 20:07:29,469 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:07:29,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-01-23 20:07:29,493 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:07:30,974 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-23 20:07:30,974 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-23 20:07:30,974 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 20:07:30,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393469835] [2025-01-23 20:07:30,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393469835] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 20:07:30,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 20:07:30,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2025-01-23 20:07:30,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797729003] [2025-01-23 20:07:30,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 20:07:30,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-01-23 20:07:30,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 20:07:30,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-01-23 20:07:30,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=594, Unknown=0, NotChecked=0, Total=650 [2025-01-23 20:07:30,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:07:30,977 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:07:30,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.038461538461538) internal successors, (131), 25 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 20:07:30,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:30,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:30,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:07:30,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:07:30,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:07:30,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:07:32,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:32,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:32,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:07:32,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:07:32,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:07:32,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-23 20:07:32,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-23 20:07:32,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:07:32,994 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-01-23 20:07:32,994 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:07:32,994 INFO L139 ounterexampleChecker]: Examining path program with hash 2082372733, occurence #1 [2025-01-23 20:07:32,994 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:07:32,994 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:07:32,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:07:32,995 INFO L85 PathProgramCache]: Analyzing trace with hash -452147247, now seen corresponding path program 3 times [2025-01-23 20:07:32,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 20:07:32,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [330937769] [2025-01-23 20:07:32,995 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 20:07:32,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:07:32,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:07:32,997 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:07:32,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-23 20:07:33,090 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 211 statements into 6 equivalence classes. [2025-01-23 20:07:33,210 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 138 of 211 statements. [2025-01-23 20:07:33,211 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-23 20:07:33,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:07:33,227 INFO L256 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-23 20:07:33,230 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:07:34,304 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2025-01-23 20:07:34,304 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-23 20:07:34,304 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 20:07:34,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330937769] [2025-01-23 20:07:34,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330937769] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 20:07:34,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 20:07:34,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-01-23 20:07:34,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467011825] [2025-01-23 20:07:34,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 20:07:34,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-23 20:07:34,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 20:07:34,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-23 20:07:34,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2025-01-23 20:07:34,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:07:34,306 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:07:34,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 13 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 20:07:34,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:34,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:34,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:07:34,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:07:34,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:07:34,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-01-23 20:07:34,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:07:38,311 WARN L331 ript$VariableManager]: TermVariable v_subst_1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:07:38,962 WARN L331 ript$VariableManager]: TermVariable v_subst_1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:07:39,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:39,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:39,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:07:39,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:07:39,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:07:39,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-23 20:07:39,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-01-23 20:07:39,915 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-01-23 20:07:40,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:07:40,102 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-01-23 20:07:40,102 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:07:40,102 INFO L139 ounterexampleChecker]: Examining path program with hash -749866208, occurence #1 [2025-01-23 20:07:40,102 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:07:40,102 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:07:40,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:07:40,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1216485494, now seen corresponding path program 4 times [2025-01-23 20:07:40,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 20:07:40,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1676421368] [2025-01-23 20:07:40,103 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 20:07:40,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:07:40,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:07:40,105 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:07:40,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-23 20:07:40,228 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 265 statements into 2 equivalence classes. [2025-01-23 20:07:40,880 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 265 of 265 statements. [2025-01-23 20:07:40,881 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-23 20:07:40,881 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:07:40,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-23 20:07:40,920 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:07:41,043 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 119 proven. 1 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2025-01-23 20:07:41,043 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:07:41,229 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 113 proven. 7 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2025-01-23 20:07:41,229 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 20:07:41,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676421368] [2025-01-23 20:07:41,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676421368] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:07:41,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:07:41,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-01-23 20:07:41,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750542467] [2025-01-23 20:07:41,229 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-23 20:07:41,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-23 20:07:41,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 20:07:41,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-23 20:07:41,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-01-23 20:07:41,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:07:41,230 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:07:41,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 20:07:41,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:41,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:41,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:07:41,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:07:41,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:07:41,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-01-23 20:07:41,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2025-01-23 20:07:41,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:07:41,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:41,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:07:41,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:07:41,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:07:41,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:07:41,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-23 20:07:41,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-01-23 20:07:41,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:07:41,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-01-23 20:07:41,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:07:41,617 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-01-23 20:07:41,617 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:07:41,617 INFO L139 ounterexampleChecker]: Examining path program with hash -749866208, occurence #2 [2025-01-23 20:07:41,617 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 20:07:41,617 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-23 20:07:41,617 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:07:41,617 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-01-23 20:07:41,617 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:07:41,617 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-01-23 20:07:41,617 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:07:41,617 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2025-01-23 20:07:41,617 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:07:41,617 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-01-23 20:07:41,617 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:07:41,618 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 157 [2025-01-23 20:07:41,788 WARN L331 ript$VariableManager]: TermVariable v_~q2_back~0_In_5 not constructed by VariableManager. Cannot ensure absence of name clashes. [2025-01-23 20:07:41,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:07:41,789 INFO L85 PathProgramCache]: Analyzing trace with hash -501408920, now seen corresponding path program 1 times [2025-01-23 20:07:41,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 20:07:41,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1372851080] [2025-01-23 20:07:41,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:07:41,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:07:41,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:07:41,791 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:07:41,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-01-23 20:07:41,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-01-23 20:07:42,026 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-01-23 20:07:42,026 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:07:42,026 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:07:42,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-23 20:07:42,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:07:42,285 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 164 proven. 3 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2025-01-23 20:07:42,285 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:07:42,801 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 152 proven. 15 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2025-01-23 20:07:42,801 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 20:07:42,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372851080] [2025-01-23 20:07:42,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372851080] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:07:42,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:07:42,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2025-01-23 20:07:42,801 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-23 20:07:42,801 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 166 [2025-01-23 20:07:44,162 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 20:07:44,162 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 134 treesize of output 73 Killed by 15