./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i --full-output --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1f73d82f Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i -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 f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-1f73d82-m [2024-11-21 15:04:05,730 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 15:04:05,845 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-21 15:04:05,853 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 15:04:05,853 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 15:04:05,880 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 15:04:05,882 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 15:04:05,883 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 15:04:05,883 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 15:04:05,883 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 15:04:05,883 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 15:04:05,883 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 15:04:05,883 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 15:04:05,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 15:04:05,883 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 15:04:05,884 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 15:04:05,884 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-21 15:04:05,884 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 15:04:05,884 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 15:04:05,884 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 15:04:05,884 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 15:04:05,884 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 15:04:05,884 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 15:04:05,884 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 15:04:05,884 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-21 15:04:05,884 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 15:04:05,884 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 15:04:05,884 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 15:04:05,884 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 15:04:05,884 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 15:04:05,884 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 15:04:05,884 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 15:04:05,885 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 15:04:05,885 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-21 15:04:05,885 INFO L153 SettingsManager]: * Commutativity condition synthesis=SUFFICIENT [2024-11-21 15:04:05,885 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 15:04:05,885 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-21 15:04:05,885 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-21 15:04:05,885 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-21 15:04:05,885 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 15:04:05,885 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-21 15:04:05,885 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-21 15:04:05,885 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-21 15:04:05,885 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 -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2024-11-21 15:04:06,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 15:04:06,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 15:04:06,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 15:04:06,182 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 15:04:06,182 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 15:04:06,183 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-11-21 15:04:07,416 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/0494ce578/5f877f720ad648e2bba52d2239755292/FLAGdc765b2d6 [2024-11-21 15:04:07,724 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 15:04:07,726 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-11-21 15:04:07,740 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/0494ce578/5f877f720ad648e2bba52d2239755292/FLAGdc765b2d6 [2024-11-21 15:04:07,998 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/0494ce578/5f877f720ad648e2bba52d2239755292 [2024-11-21 15:04:08,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 15:04:08,003 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 15:04:08,004 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 15:04:08,004 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 15:04:08,011 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 15:04:08,012 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 03:04:07" (1/1) ... [2024-11-21 15:04:08,015 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7df3b648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:04:08, skipping insertion in model container [2024-11-21 15:04:08,015 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 03:04:07" (1/1) ... [2024-11-21 15:04:08,045 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 15:04:08,316 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i[47038,47051] [2024-11-21 15:04:08,333 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-21 15:04:08,334 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-21 15:04:08,334 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-21 15:04:08,335 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-21 15:04:08,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 15:04:08,387 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 15:04:08,418 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i[47038,47051] [2024-11-21 15:04:08,421 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-21 15:04:08,422 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-21 15:04:08,422 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-21 15:04:08,423 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-21 15:04:08,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 15:04:08,480 INFO L204 MainTranslator]: Completed translation [2024-11-21 15:04:08,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:04:08 WrapperNode [2024-11-21 15:04:08,480 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 15:04:08,481 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 15:04:08,481 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 15:04:08,481 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 15:04:08,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:04:08" (1/1) ... [2024-11-21 15:04:08,504 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:04:08" (1/1) ... [2024-11-21 15:04:08,583 INFO L138 Inliner]: procedures = 280, calls = 142, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 374 [2024-11-21 15:04:08,584 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 15:04:08,584 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 15:04:08,584 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 15:04:08,584 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 15:04:08,590 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:04:08" (1/1) ... [2024-11-21 15:04:08,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:04:08" (1/1) ... [2024-11-21 15:04:08,596 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:04:08" (1/1) ... [2024-11-21 15:04:08,600 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:04:08" (1/1) ... [2024-11-21 15:04:08,612 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:04:08" (1/1) ... [2024-11-21 15:04:08,617 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:04:08" (1/1) ... [2024-11-21 15:04:08,620 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:04:08" (1/1) ... [2024-11-21 15:04:08,624 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:04:08" (1/1) ... [2024-11-21 15:04:08,625 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:04:08" (1/1) ... [2024-11-21 15:04:08,631 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 15:04:08,632 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 15:04:08,632 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 15:04:08,632 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 15:04:08,633 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:04:08" (1/1) ... [2024-11-21 15:04:08,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 15:04:08,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:04:08,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-21 15:04:08,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-21 15:04:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-21 15:04:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-21 15:04:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-21 15:04:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-21 15:04:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-21 15:04:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-21 15:04:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-21 15:04:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-21 15:04:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-21 15:04:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-21 15:04:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-21 15:04:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-21 15:04:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-21 15:04:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 15:04:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-21 15:04:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-21 15:04:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 15:04:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 15:04:08,702 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-21 15:04:08,842 INFO L234 CfgBuilder]: Building ICFG [2024-11-21 15:04:08,844 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 15:04:09,312 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-21 15:04:09,313 INFO L283 CfgBuilder]: Performing block encoding [2024-11-21 15:04:09,836 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 15:04:09,837 INFO L312 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-21 15:04:09,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 03:04:09 BoogieIcfgContainer [2024-11-21 15:04:09,837 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 15:04:09,839 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 15:04:09,839 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 15:04:09,844 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 15:04:09,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 03:04:07" (1/3) ... [2024-11-21 15:04:09,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf9333d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 03:04:09, skipping insertion in model container [2024-11-21 15:04:09,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:04:08" (2/3) ... [2024-11-21 15:04:09,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf9333d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 03:04:09, skipping insertion in model container [2024-11-21 15:04:09,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 03:04:09" (3/3) ... [2024-11-21 15:04:09,846 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2024-11-21 15:04:09,859 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 15:04:09,861 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_90-arrayloop2_racing.i that has 3 procedures, 82 locations, 1 initial locations, 20 loop locations, and 2 error locations. [2024-11-21 15:04:09,861 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-21 15:04:09,929 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-21 15:04:09,962 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 15:04:09,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-21 15:04:09,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:04:09,969 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-21 15:04:09,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-21 15:04:10,050 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 15:04:10,063 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funThread1of1ForFork1 ======== [2024-11-21 15:04:10,068 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;@4a1e07e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 15:04:10,069 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 15:04:11,949 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 15:04:11,949 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:04:11,950 INFO L139 ounterexampleChecker]: Examining path program with hash -1692603923, occurence #1 [2024-11-21 15:04:11,950 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 15:04:11,950 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:04:11,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:04:11,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1627908568, now seen corresponding path program 1 times [2024-11-21 15:04:11,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 15:04:11,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753045760] [2024-11-21 15:04:11,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:11,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:12,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 15:04:12,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 15:04:12,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753045760] [2024-11-21 15:04:12,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753045760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 15:04:12,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 15:04:12,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 15:04:12,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121357072] [2024-11-21 15:04:12,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 15:04:12,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 15:04:12,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 15:04:12,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 15:04:12,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 15:04:12,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:04:12,286 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:04:12,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 15:04:12,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:04:13,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:13,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-21 15:04:13,283 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 15:04:13,283 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:04:13,284 INFO L139 ounterexampleChecker]: Examining path program with hash -1856802666, occurence #1 [2024-11-21 15:04:13,284 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 15:04:13,284 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:04:13,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:04:13,284 INFO L85 PathProgramCache]: Analyzing trace with hash 272934593, now seen corresponding path program 1 times [2024-11-21 15:04:13,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 15:04:13,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870218279] [2024-11-21 15:04:13,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:13,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:13,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 15:04:13,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 15:04:13,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870218279] [2024-11-21 15:04:13,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870218279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 15:04:13,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 15:04:13,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 15:04:13,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221799939] [2024-11-21 15:04:13,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 15:04:13,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 15:04:13,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 15:04:13,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 15:04:13,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 15:04:13,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:04:13,514 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:04:13,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 15:04:13,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:13,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:04:13,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:13,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:13,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-21 15:04:13,695 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 15:04:13,695 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:04:13,695 INFO L139 ounterexampleChecker]: Examining path program with hash -1856802666, occurence #2 [2024-11-21 15:04:13,695 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-21 15:04:13,695 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2024-11-21 15:04:13,696 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:13,696 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-21 15:04:13,696 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:13,696 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-21 15:04:13,696 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:04:13,696 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-11-21 15:04:13,696 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:04:13,696 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 38 [2024-11-21 15:04:13,696 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:13,696 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2024-11-21 15:04:13,696 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:13,696 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-11-21 15:04:13,696 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:13,696 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 55 [2024-11-21 15:04:13,696 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:13,696 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 56 [2024-11-21 15:04:13,696 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:13,696 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 60 [2024-11-21 15:04:13,734 WARN L331 ript$VariableManager]: TermVariable v_DerPreprocessor_19 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 15:04:13,735 WARN L331 ript$VariableManager]: TermVariable v_DerPreprocessor_20 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 15:04:13,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:04:13,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1455647173, now seen corresponding path program 1 times [2024-11-21 15:04:13,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-21 15:04:13,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663426645] [2024-11-21 15:04:13,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:13,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:13,894 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 15:04:13,898 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-21 15:04:13,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663426645] [2024-11-21 15:04:13,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663426645] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:13,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1837294272] [2024-11-21 15:04:13,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:13,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:13,955 INFO L256 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 15:04:13,959 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:04:13,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 15:04:13,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1837294272] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:13,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-21 15:04:13,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2024-11-21 15:04:13,970 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-21 15:04:13,970 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 70 [2024-11-21 15:04:13,970 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:13,970 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2024-11-21 15:04:13,970 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:13,970 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 72 [2024-11-21 15:04:13,970 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:13,970 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 90 [2024-11-21 15:04:13,970 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:13,970 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 91 [2024-11-21 15:04:13,970 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:13,970 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 92 [2024-11-21 15:04:13,970 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:13,970 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 99 [2024-11-21 15:04:14,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:04:14,005 INFO L85 PathProgramCache]: Analyzing trace with hash 34679958, now seen corresponding path program 1 times [2024-11-21 15:04:14,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-21 15:04:14,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241432136] [2024-11-21 15:04:14,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:14,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:14,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:14,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 15:04:14,172 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-21 15:04:14,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241432136] [2024-11-21 15:04:14,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241432136] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:14,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1777070966] [2024-11-21 15:04:14,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:14,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:14,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 15:04:14,264 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:04:14,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 15:04:14,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1777070966] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:14,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-21 15:04:14,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2024-11-21 15:04:14,280 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-21 15:04:14,280 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-21 15:04:14,280 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:04:14,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:04:14,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1025025499, now seen corresponding path program 1 times [2024-11-21 15:04:14,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 15:04:14,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658470800] [2024-11-21 15:04:14,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:14,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:14,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:14,396 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 15:04:14,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 15:04:14,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658470800] [2024-11-21 15:04:14,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658470800] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:14,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419052853] [2024-11-21 15:04:14,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:14,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:04:14,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:04:14,398 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 15:04:14,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-21 15:04:14,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:14,646 INFO L256 TraceCheckSpWp]: Trace formula consists of 827 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 15:04:14,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:04:14,664 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 11 treesize of output 7 [2024-11-21 15:04:14,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-21 15:04:14,678 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 15:04:14,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419052853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 15:04:14,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 15:04:14,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-21 15:04:14,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117348744] [2024-11-21 15:04:14,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 15:04:14,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 15:04:14,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 15:04:14,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 15:04:14,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-21 15:04:14,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:04:14,680 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:04:14,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 15:04:14,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:14,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:14,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:04:15,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:15,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:15,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:15,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-21 15:04:15,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable3,SelfDestructingSolverStorable2,SelfDestructingSolverStorable6,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-21 15:04:15,453 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 15:04:15,454 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:04:15,454 INFO L139 ounterexampleChecker]: Examining path program with hash 533044664, occurence #1 [2024-11-21 15:04:15,455 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 15:04:15,455 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:04:15,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:04:15,456 INFO L85 PathProgramCache]: Analyzing trace with hash -118068251, now seen corresponding path program 1 times [2024-11-21 15:04:15,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 15:04:15,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925814716] [2024-11-21 15:04:15,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:15,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:15,692 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-21 15:04:15,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 15:04:15,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925814716] [2024-11-21 15:04:15,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925814716] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:15,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375670621] [2024-11-21 15:04:15,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:15,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:04:15,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:04:15,695 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 15:04:15,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-21 15:04:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:16,034 INFO L256 TraceCheckSpWp]: Trace formula consists of 1552 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 15:04:16,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:04:16,062 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-21 15:04:16,064 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 15:04:16,088 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-21 15:04:16,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375670621] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 15:04:16,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 15:04:16,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-21 15:04:16,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190594698] [2024-11-21 15:04:16,090 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 15:04:16,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-21 15:04:16,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 15:04:16,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-21 15:04:16,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-21 15:04:16,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:04:16,093 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:04:16,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 15:04:16,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:16,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:16,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:16,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:04:16,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:16,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:16,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:16,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:04:16,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-21 15:04:16,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:04:16,771 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 15:04:16,771 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:04:16,772 INFO L139 ounterexampleChecker]: Examining path program with hash 533044664, occurence #2 [2024-11-21 15:04:16,773 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-21 15:04:16,773 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2024-11-21 15:04:16,773 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:16,773 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-21 15:04:16,774 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:16,774 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-11-21 15:04:16,774 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:04:16,774 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-11-21 15:04:16,774 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:04:16,774 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 41 [2024-11-21 15:04:16,774 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:16,774 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 42 [2024-11-21 15:04:16,774 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:16,774 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2024-11-21 15:04:16,774 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:16,774 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 58 [2024-11-21 15:04:16,774 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:16,774 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 59 [2024-11-21 15:04:16,774 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:16,774 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 63 [2024-11-21 15:04:16,821 WARN L331 ript$VariableManager]: TermVariable v_DerPreprocessor_24 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 15:04:16,821 WARN L331 ript$VariableManager]: TermVariable v_DerPreprocessor_23 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 15:04:16,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:04:16,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1705194335, now seen corresponding path program 1 times [2024-11-21 15:04:16,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-21 15:04:16,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550820780] [2024-11-21 15:04:16,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:16,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:17,059 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-21 15:04:17,059 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-21 15:04:17,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550820780] [2024-11-21 15:04:17,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550820780] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:17,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1575177001] [2024-11-21 15:04:17,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:17,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:17,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:17,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 15:04:17,144 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:04:17,156 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-21 15:04:17,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1575177001] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:17,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-21 15:04:17,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2024-11-21 15:04:17,157 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-21 15:04:17,157 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 73 [2024-11-21 15:04:17,157 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:17,157 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 74 [2024-11-21 15:04:17,157 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:17,157 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2024-11-21 15:04:17,157 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:17,157 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 93 [2024-11-21 15:04:17,157 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:17,158 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 94 [2024-11-21 15:04:17,158 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:17,158 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 95 [2024-11-21 15:04:17,158 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:17,158 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 100 [2024-11-21 15:04:17,158 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:17,158 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2024-11-21 15:04:17,183 WARN L331 ript$VariableManager]: TermVariable v_DerPreprocessor_25 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 15:04:17,183 WARN L331 ript$VariableManager]: TermVariable v_DerPreprocessor_26 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 15:04:17,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:04:17,184 INFO L85 PathProgramCache]: Analyzing trace with hash -115847106, now seen corresponding path program 1 times [2024-11-21 15:04:17,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-21 15:04:17,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891594345] [2024-11-21 15:04:17,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:17,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:17,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:17,355 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-21 15:04:17,355 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-21 15:04:17,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891594345] [2024-11-21 15:04:17,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891594345] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:17,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [433717152] [2024-11-21 15:04:17,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:17,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:17,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 1074 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 15:04:17,435 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:04:17,446 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-21 15:04:17,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [433717152] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:17,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-21 15:04:17,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2024-11-21 15:04:17,447 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-21 15:04:17,447 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 109 [2024-11-21 15:04:17,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:04:17,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1409731575, now seen corresponding path program 1 times [2024-11-21 15:04:17,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-21 15:04:17,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412058578] [2024-11-21 15:04:17,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:17,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:17,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:17,638 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-21 15:04:17,639 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-21 15:04:17,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412058578] [2024-11-21 15:04:17,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412058578] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:17,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1112107952] [2024-11-21 15:04:17,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:17,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:17,769 INFO L256 TraceCheckSpWp]: Trace formula consists of 1101 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 15:04:17,771 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:04:17,782 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-21 15:04:17,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1112107952] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:17,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-21 15:04:17,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2024-11-21 15:04:17,783 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-21 15:04:17,783 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 121 [2024-11-21 15:04:17,783 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:17,783 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 122 [2024-11-21 15:04:17,783 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:17,783 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 123 [2024-11-21 15:04:17,783 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:17,783 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 129 [2024-11-21 15:04:17,783 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:17,783 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 130 [2024-11-21 15:04:17,783 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:17,784 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2024-11-21 15:04:17,784 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:17,784 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 145 [2024-11-21 15:04:17,784 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:17,784 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 148 [2024-11-21 15:04:17,791 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:17,792 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 152 [2024-11-21 15:04:17,792 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:17,792 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 153 [2024-11-21 15:04:17,792 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:17,792 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 154 [2024-11-21 15:04:17,792 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:17,792 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 155 [2024-11-21 15:04:17,792 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:17,792 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 158 [2024-11-21 15:04:17,792 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:17,792 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 160 [2024-11-21 15:04:17,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:04:17,803 INFO L85 PathProgramCache]: Analyzing trace with hash 2107356954, now seen corresponding path program 1 times [2024-11-21 15:04:17,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-21 15:04:17,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818770445] [2024-11-21 15:04:17,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:17,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:18,064 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-21 15:04:18,064 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-21 15:04:18,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818770445] [2024-11-21 15:04:18,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818770445] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:18,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [150242980] [2024-11-21 15:04:18,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:18,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:18,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 1328 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 15:04:18,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:04:18,190 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-21 15:04:18,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [150242980] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:18,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-21 15:04:18,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2024-11-21 15:04:18,191 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-21 15:04:18,191 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 163 [2024-11-21 15:04:18,191 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:18,191 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 168 [2024-11-21 15:04:18,191 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:18,191 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 169 [2024-11-21 15:04:18,191 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:18,191 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 170 [2024-11-21 15:04:18,191 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:18,191 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 171 [2024-11-21 15:04:18,191 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:18,191 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 177 [2024-11-21 15:04:18,215 WARN L331 ript$VariableManager]: TermVariable v_DerPreprocessor_28 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 15:04:18,215 WARN L331 ript$VariableManager]: TermVariable v_DerPreprocessor_27 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 15:04:18,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:04:18,216 INFO L85 PathProgramCache]: Analyzing trace with hash -2108986221, now seen corresponding path program 1 times [2024-11-21 15:04:18,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-21 15:04:18,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927376611] [2024-11-21 15:04:18,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:18,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:18,439 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-21 15:04:18,440 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-21 15:04:18,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927376611] [2024-11-21 15:04:18,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927376611] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:18,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [647303191] [2024-11-21 15:04:18,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:18,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:18,524 INFO L256 TraceCheckSpWp]: Trace formula consists of 1387 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 15:04:18,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:04:18,538 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-21 15:04:18,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [647303191] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:18,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-21 15:04:18,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2024-11-21 15:04:18,542 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-21 15:04:18,542 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 187 [2024-11-21 15:04:18,542 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:18,543 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 188 [2024-11-21 15:04:18,543 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:18,543 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 189 [2024-11-21 15:04:18,543 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:18,543 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 207 [2024-11-21 15:04:18,543 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:18,543 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 208 [2024-11-21 15:04:18,543 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:18,543 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 209 [2024-11-21 15:04:18,543 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:18,543 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 214 [2024-11-21 15:04:18,543 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:18,543 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 217 [2024-11-21 15:04:18,586 WARN L331 ript$VariableManager]: TermVariable v_DerPreprocessor_29 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 15:04:18,586 WARN L331 ript$VariableManager]: TermVariable v_DerPreprocessor_30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 15:04:18,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:04:18,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1440189860, now seen corresponding path program 1 times [2024-11-21 15:04:18,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-21 15:04:18,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209962195] [2024-11-21 15:04:18,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:18,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:18,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:18,901 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-21 15:04:18,902 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-21 15:04:18,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209962195] [2024-11-21 15:04:18,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209962195] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:18,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [980754926] [2024-11-21 15:04:18,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:18,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:18,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 1558 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 15:04:18,993 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:04:19,006 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-21 15:04:19,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [980754926] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:19,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-21 15:04:19,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2024-11-21 15:04:19,006 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-21 15:04:19,006 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 223 [2024-11-21 15:04:19,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:04:19,015 INFO L85 PathProgramCache]: Analyzing trace with hash 642135289, now seen corresponding path program 1 times [2024-11-21 15:04:19,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-21 15:04:19,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170408560] [2024-11-21 15:04:19,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:19,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:19,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:19,242 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-21 15:04:19,242 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-21 15:04:19,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170408560] [2024-11-21 15:04:19,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170408560] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:19,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1456387825] [2024-11-21 15:04:19,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:19,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:19,328 INFO L256 TraceCheckSpWp]: Trace formula consists of 1585 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 15:04:19,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:04:19,345 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-21 15:04:19,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1456387825] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:19,345 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-21 15:04:19,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2024-11-21 15:04:19,345 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-21 15:04:19,345 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 235 [2024-11-21 15:04:19,345 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:19,345 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 236 [2024-11-21 15:04:19,345 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:19,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 237 [2024-11-21 15:04:19,346 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:19,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 243 [2024-11-21 15:04:19,346 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:19,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 244 [2024-11-21 15:04:19,346 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:19,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 245 [2024-11-21 15:04:19,346 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:19,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 259 [2024-11-21 15:04:19,346 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:19,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 262 [2024-11-21 15:04:19,354 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:19,355 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 268 [2024-11-21 15:04:19,355 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:19,355 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 269 [2024-11-21 15:04:19,355 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:19,355 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 270 [2024-11-21 15:04:19,356 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:19,356 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 271 [2024-11-21 15:04:19,356 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:19,356 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-21 15:04:19,356 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:04:19,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:04:19,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1461382785, now seen corresponding path program 2 times [2024-11-21 15:04:19,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 15:04:19,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673868764] [2024-11-21 15:04:19,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:19,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:19,616 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-21 15:04:19,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 15:04:19,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673868764] [2024-11-21 15:04:19,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673868764] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:19,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500120374] [2024-11-21 15:04:19,617 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-21 15:04:19,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:04:19,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:04:19,624 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 15:04:19,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-21 15:04:20,172 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-21 15:04:20,172 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 15:04:20,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 15:04:20,185 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:04:20,211 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-21 15:04:20,211 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 15:04:20,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500120374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 15:04:20,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 15:04:20,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 6 [2024-11-21 15:04:20,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61570324] [2024-11-21 15:04:20,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 15:04:20,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 15:04:20,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 15:04:20,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 15:04:20,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-21 15:04:20,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:04:20,214 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:04:20,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 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) [2024-11-21 15:04:20,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:20,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:20,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:20,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:04:20,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:04:20,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:20,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:20,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:20,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:04:20,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:04:20,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-21 15:04:20,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-21 15:04:21,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,SelfDestructingSolverStorable18,SelfDestructingSolverStorable19,SelfDestructingSolverStorable8,SelfDestructingSolverStorable10,SelfDestructingSolverStorable21,SelfDestructingSolverStorable11,SelfDestructingSolverStorable22,SelfDestructingSolverStorable12,SelfDestructingSolverStorable9,SelfDestructingSolverStorable13,SelfDestructingSolverStorable14,SelfDestructingSolverStorable15,SelfDestructingSolverStorable16,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-21 15:04:21,160 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-11-21 15:04:21,162 INFO L319 ceAbstractionStarter]: Result for error location t2_funThread1of1ForFork1 was SAFE (1/3) [2024-11-21 15:04:21,170 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 15:04:21,171 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 15:04:21,171 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1_funThread1of1ForFork0 ======== [2024-11-21 15:04:21,171 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;@4a1e07e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 15:04:21,171 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 15:04:21,182 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 15:04:21,182 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:04:21,182 INFO L139 ounterexampleChecker]: Examining path program with hash 392742848, occurence #1 [2024-11-21 15:04:21,182 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 15:04:21,182 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:04:21,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:04:21,184 INFO L85 PathProgramCache]: Analyzing trace with hash 768693681, now seen corresponding path program 1 times [2024-11-21 15:04:21,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 15:04:21,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711896133] [2024-11-21 15:04:21,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:21,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:21,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 15:04:21,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 15:04:21,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711896133] [2024-11-21 15:04:21,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711896133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 15:04:21,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 15:04:21,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 15:04:21,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676223631] [2024-11-21 15:04:21,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 15:04:21,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 15:04:21,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 15:04:21,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 15:04:21,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 15:04:21,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:04:21,221 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:04:21,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 15:04:21,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:04:21,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:21,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-21 15:04:21,412 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 15:04:21,412 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:04:21,412 INFO L139 ounterexampleChecker]: Examining path program with hash 1903938990, occurence #1 [2024-11-21 15:04:21,412 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 15:04:21,412 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:04:21,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:04:21,412 INFO L85 PathProgramCache]: Analyzing trace with hash -266840206, now seen corresponding path program 1 times [2024-11-21 15:04:21,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 15:04:21,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427718423] [2024-11-21 15:04:21,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:21,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:21,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:21,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 15:04:21,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 15:04:21,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427718423] [2024-11-21 15:04:21,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427718423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 15:04:21,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 15:04:21,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 15:04:21,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256091132] [2024-11-21 15:04:21,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 15:04:21,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 15:04:21,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 15:04:21,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 15:04:21,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 15:04:21,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:04:21,452 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:04:21,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 15:04:21,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:21,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:04:21,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:21,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:21,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-21 15:04:21,539 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 15:04:21,539 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:04:21,539 INFO L139 ounterexampleChecker]: Examining path program with hash 1903938990, occurence #2 [2024-11-21 15:04:21,539 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-21 15:04:21,539 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2024-11-21 15:04:21,539 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:21,539 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-21 15:04:21,539 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:21,539 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-21 15:04:21,540 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:04:21,540 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-21 15:04:21,540 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:04:21,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:04:21,540 INFO L85 PathProgramCache]: Analyzing trace with hash 817540494, now seen corresponding path program 1 times [2024-11-21 15:04:21,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 15:04:21,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019406607] [2024-11-21 15:04:21,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:21,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:21,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 15:04:21,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 15:04:21,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019406607] [2024-11-21 15:04:21,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019406607] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:21,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452131747] [2024-11-21 15:04:21,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:21,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:04:21,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:04:21,612 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 15:04:21,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-21 15:04:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:22,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 15:04:22,016 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:04:22,023 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 15:04:22,023 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 15:04:22,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 15:04:22,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452131747] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 15:04:22,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 15:04:22,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-21 15:04:22,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052674383] [2024-11-21 15:04:22,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 15:04:22,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-21 15:04:22,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 15:04:22,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-21 15:04:22,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-21 15:04:22,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:04:22,035 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:04:22,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 15:04:22,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:22,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:22,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:04:22,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:22,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:22,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:04:22,368 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-21 15:04:22,553 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,SelfDestructingSolverStorable25 [2024-11-21 15:04:22,554 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 15:04:22,554 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:04:22,554 INFO L139 ounterexampleChecker]: Examining path program with hash 1903938990, occurence #3 [2024-11-21 15:04:22,554 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-21 15:04:22,554 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2024-11-21 15:04:22,554 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:22,554 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-21 15:04:22,554 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:22,554 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-11-21 15:04:22,555 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:04:22,555 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-21 15:04:22,555 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:04:22,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:04:22,555 INFO L85 PathProgramCache]: Analyzing trace with hash 822804082, now seen corresponding path program 2 times [2024-11-21 15:04:22,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 15:04:22,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644951309] [2024-11-21 15:04:22,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:22,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:22,691 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-21 15:04:22,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 15:04:22,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644951309] [2024-11-21 15:04:22,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644951309] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:22,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553469614] [2024-11-21 15:04:22,691 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-21 15:04:22,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:04:22,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:04:22,693 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 15:04:22,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-21 15:04:23,174 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-21 15:04:23,175 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 15:04:23,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-21 15:04:23,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:04:23,207 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 15:04:23,207 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 15:04:23,254 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 15:04:23,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553469614] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 15:04:23,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 15:04:23,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2024-11-21 15:04:23,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104266797] [2024-11-21 15:04:23,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 15:04:23,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-21 15:04:23,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 15:04:23,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-21 15:04:23,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-21 15:04:23,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:04:23,256 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:04:23,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 15:04:23,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:23,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:23,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:04:23,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:04:24,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:24,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:04:24,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:04:24,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-21 15:04:24,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-21 15:04:24,377 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,SelfDestructingSolverStorable26 [2024-11-21 15:04:24,378 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 15:04:24,378 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:04:24,378 INFO L139 ounterexampleChecker]: Examining path program with hash 1903938990, occurence #4 [2024-11-21 15:04:24,378 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-21 15:04:24,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2024-11-21 15:04:24,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:24,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-11-21 15:04:24,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:24,379 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-21 15:04:24,379 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:04:24,379 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-11-21 15:04:24,379 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:04:24,379 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-21 15:04:24,379 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:04:24,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:04:24,379 INFO L85 PathProgramCache]: Analyzing trace with hash -776887629, now seen corresponding path program 3 times [2024-11-21 15:04:24,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 15:04:24,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633844407] [2024-11-21 15:04:24,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:04:24,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:04:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:04:24,964 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-21 15:04:24,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 15:04:24,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633844407] [2024-11-21 15:04:24,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633844407] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:04:24,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741968183] [2024-11-21 15:04:24,964 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-21 15:04:24,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:04:24,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:04:24,966 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 15:04:24,967 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 Killed by 15