./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-56.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-56.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 93f6049834027826884500d547bca7113061f8754e944538b453474a4566d492 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 13:31:53,801 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 13:31:53,864 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 13:31:53,868 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 13:31:53,869 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 13:31:53,890 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 13:31:53,890 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 13:31:53,890 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 13:31:53,890 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 13:31:53,890 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 13:31:53,890 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 13:31:53,891 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 13:31:53,891 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 13:31:53,891 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 13:31:53,891 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 13:31:53,891 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 13:31:53,891 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 13:31:53,891 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 13:31:53,891 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 13:31:53,891 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 13:31:53,891 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 13:31:53,891 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 13:31:53,891 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 13:31:53,891 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 13:31:53,891 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 13:31:53,893 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 13:31:53,893 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 13:31:53,893 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 13:31:53,893 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 13:31:53,893 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 13:31:53,894 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 13:31:53,894 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 13:31:53,894 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 13:31:53,894 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 13:31:53,894 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 13:31:53,894 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 13:31:53,894 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 13:31:53,894 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 13:31:53,894 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 13:31:53,894 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 13:31:53,894 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 13:31:53,894 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 13:31:53,895 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 13:31:53,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 13:31:53,895 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 13:31:53,895 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 13:31:53,895 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 13:31:53,895 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 13:31:53,895 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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/UAutomizer-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 -> Automizer 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 -> 93f6049834027826884500d547bca7113061f8754e944538b453474a4566d492 [2025-01-09 13:31:54,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 13:31:54,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 13:31:54,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 13:31:54,132 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 13:31:54,132 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 13:31:54,133 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-56.i [2025-01-09 13:31:55,276 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4e3d2b21d/7e2220ddaf694c5cbf26f77454416f3e/FLAG1e6c4ed41 [2025-01-09 13:31:55,562 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 13:31:55,563 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-56.i [2025-01-09 13:31:55,571 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4e3d2b21d/7e2220ddaf694c5cbf26f77454416f3e/FLAG1e6c4ed41 [2025-01-09 13:31:55,593 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4e3d2b21d/7e2220ddaf694c5cbf26f77454416f3e [2025-01-09 13:31:55,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 13:31:55,597 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 13:31:55,599 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 13:31:55,599 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 13:31:55,602 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 13:31:55,604 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:31:55" (1/1) ... [2025-01-09 13:31:55,604 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47167c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:31:55, skipping insertion in model container [2025-01-09 13:31:55,604 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:31:55" (1/1) ... [2025-01-09 13:31:55,617 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 13:31:55,722 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/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-56.i[915,928] [2025-01-09 13:31:55,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 13:31:55,773 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 13:31:55,782 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/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-56.i[915,928] [2025-01-09 13:31:55,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 13:31:55,818 INFO L204 MainTranslator]: Completed translation [2025-01-09 13:31:55,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:31:55 WrapperNode [2025-01-09 13:31:55,820 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 13:31:55,821 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 13:31:55,821 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 13:31:55,822 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 13:31:55,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:31:55" (1/1) ... [2025-01-09 13:31:55,834 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:31:55" (1/1) ... [2025-01-09 13:31:55,865 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 98 [2025-01-09 13:31:55,869 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 13:31:55,870 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 13:31:55,870 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 13:31:55,870 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 13:31:55,876 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:31:55" (1/1) ... [2025-01-09 13:31:55,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:31:55" (1/1) ... [2025-01-09 13:31:55,878 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:31:55" (1/1) ... [2025-01-09 13:31:55,898 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-01-09 13:31:55,898 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:31:55" (1/1) ... [2025-01-09 13:31:55,898 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:31:55" (1/1) ... [2025-01-09 13:31:55,902 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:31:55" (1/1) ... [2025-01-09 13:31:55,903 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:31:55" (1/1) ... [2025-01-09 13:31:55,905 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:31:55" (1/1) ... [2025-01-09 13:31:55,907 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:31:55" (1/1) ... [2025-01-09 13:31:55,907 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:31:55" (1/1) ... [2025-01-09 13:31:55,909 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 13:31:55,910 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 13:31:55,910 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 13:31:55,910 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 13:31:55,911 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:31:55" (1/1) ... [2025-01-09 13:31:55,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 13:31:55,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 13:31:55,939 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 13:31:55,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 13:31:55,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 13:31:55,962 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 13:31:55,962 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 13:31:55,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 13:31:55,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 13:31:55,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 13:31:56,016 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 13:31:56,018 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 13:31:56,207 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2025-01-09 13:31:56,207 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 13:31:56,215 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 13:31:56,217 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 13:31:56,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:31:56 BoogieIcfgContainer [2025-01-09 13:31:56,217 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 13:31:56,218 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 13:31:56,218 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 13:31:56,221 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 13:31:56,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:31:55" (1/3) ... [2025-01-09 13:31:56,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe95638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:31:56, skipping insertion in model container [2025-01-09 13:31:56,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:31:55" (2/3) ... [2025-01-09 13:31:56,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe95638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:31:56, skipping insertion in model container [2025-01-09 13:31:56,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:31:56" (3/3) ... [2025-01-09 13:31:56,224 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-56.i [2025-01-09 13:31:56,236 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 13:31:56,237 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-56.i that has 2 procedures, 45 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 13:31:56,283 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 13:31:56,291 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=PETRI_NET, 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;@e557d7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 13:31:56,291 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 13:31:56,294 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 32 states have (on average 1.34375) internal successors, (43), 33 states have internal predecessors, (43), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-01-09 13:31:56,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-01-09 13:31:56,301 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 13:31:56,301 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 13:31:56,302 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 13:31:56,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 13:31:56,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1363898031, now seen corresponding path program 1 times [2025-01-09 13:31:56,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 13:31:56,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120358721] [2025-01-09 13:31:56,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 13:31:56,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 13:31:56,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-01-09 13:31:56,396 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-01-09 13:31:56,397 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 13:31:56,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 13:31:56,502 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2025-01-09 13:31:56,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 13:31:56,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120358721] [2025-01-09 13:31:56,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120358721] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 13:31:56,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100622721] [2025-01-09 13:31:56,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 13:31:56,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 13:31:56,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 13:31:56,507 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 13:31:56,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 13:31:56,565 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-01-09 13:31:56,620 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-01-09 13:31:56,620 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 13:31:56,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 13:31:56,623 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 13:31:56,627 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 13:31:56,640 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2025-01-09 13:31:56,641 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 13:31:56,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100622721] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 13:31:56,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 13:31:56,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 13:31:56,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123554465] [2025-01-09 13:31:56,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 13:31:56,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 13:31:56,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 13:31:56,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 13:31:56,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 13:31:56,676 INFO L87 Difference]: Start difference. First operand has 45 states, 32 states have (on average 1.34375) internal successors, (43), 33 states have internal predecessors, (43), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 13:31:56,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 13:31:56,689 INFO L93 Difference]: Finished difference Result 84 states and 131 transitions. [2025-01-09 13:31:56,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 13:31:56,691 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 72 [2025-01-09 13:31:56,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 13:31:56,695 INFO L225 Difference]: With dead ends: 84 [2025-01-09 13:31:56,695 INFO L226 Difference]: Without dead ends: 42 [2025-01-09 13:31:56,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 13:31:56,700 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 13:31:56,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 13:31:56,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2025-01-09 13:31:56,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2025-01-09 13:31:56,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-01-09 13:31:56,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 58 transitions. [2025-01-09 13:31:56,726 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 58 transitions. Word has length 72 [2025-01-09 13:31:56,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 13:31:56,727 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 58 transitions. [2025-01-09 13:31:56,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 13:31:56,727 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 58 transitions. [2025-01-09 13:31:56,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-01-09 13:31:56,729 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 13:31:56,729 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 13:31:56,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 13:31:56,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-01-09 13:31:56,930 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 13:31:56,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 13:31:56,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1980082193, now seen corresponding path program 1 times [2025-01-09 13:31:56,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 13:31:56,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10230809] [2025-01-09 13:31:56,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 13:31:56,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 13:31:56,941 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-01-09 13:31:56,982 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-01-09 13:31:56,983 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 13:31:56,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 13:31:57,373 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-01-09 13:31:57,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 13:31:57,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10230809] [2025-01-09 13:31:57,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10230809] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 13:31:57,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 13:31:57,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 13:31:57,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138250168] [2025-01-09 13:31:57,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 13:31:57,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 13:31:57,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 13:31:57,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 13:31:57,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 13:31:57,378 INFO L87 Difference]: Start difference. First operand 42 states and 58 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-01-09 13:31:57,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 13:31:57,543 INFO L93 Difference]: Finished difference Result 119 states and 167 transitions. [2025-01-09 13:31:57,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 13:31:57,543 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 72 [2025-01-09 13:31:57,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 13:31:57,544 INFO L225 Difference]: With dead ends: 119 [2025-01-09 13:31:57,544 INFO L226 Difference]: Without dead ends: 80 [2025-01-09 13:31:57,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-01-09 13:31:57,545 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 36 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 13:31:57,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 165 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 13:31:57,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2025-01-09 13:31:57,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 73. [2025-01-09 13:31:57,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 50 states have (on average 1.24) internal successors, (62), 50 states have internal predecessors, (62), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-01-09 13:31:57,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2025-01-09 13:31:57,557 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 72 [2025-01-09 13:31:57,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 13:31:57,557 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2025-01-09 13:31:57,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-01-09 13:31:57,558 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2025-01-09 13:31:57,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-01-09 13:31:57,559 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 13:31:57,559 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 13:31:57,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 13:31:57,559 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 13:31:57,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 13:31:57,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1613820525, now seen corresponding path program 1 times [2025-01-09 13:31:57,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 13:31:57,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132867255] [2025-01-09 13:31:57,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 13:31:57,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 13:31:57,571 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-01-09 13:31:57,603 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-01-09 13:31:57,604 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 13:31:57,604 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 13:31:58,868 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-01-09 13:31:58,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 13:31:58,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132867255] [2025-01-09 13:31:58,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132867255] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 13:31:58,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 13:31:58,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 13:31:58,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151460879] [2025-01-09 13:31:58,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 13:31:58,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 13:31:58,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 13:31:58,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 13:31:58,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 13:31:58,870 INFO L87 Difference]: Start difference. First operand 73 states and 102 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-01-09 13:31:59,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 13:31:59,496 INFO L93 Difference]: Finished difference Result 108 states and 148 transitions. [2025-01-09 13:31:59,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 13:31:59,497 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 72 [2025-01-09 13:31:59,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 13:31:59,500 INFO L225 Difference]: With dead ends: 108 [2025-01-09 13:31:59,500 INFO L226 Difference]: Without dead ends: 106 [2025-01-09 13:31:59,501 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-01-09 13:31:59,501 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 48 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 13:31:59,501 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 239 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 13:31:59,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2025-01-09 13:31:59,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 90. [2025-01-09 13:31:59,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 67 states have internal predecessors, (86), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-01-09 13:31:59,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 126 transitions. [2025-01-09 13:31:59,516 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 126 transitions. Word has length 72 [2025-01-09 13:31:59,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 13:31:59,518 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 126 transitions. [2025-01-09 13:31:59,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-01-09 13:31:59,518 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 126 transitions. [2025-01-09 13:31:59,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-01-09 13:31:59,519 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 13:31:59,519 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 13:31:59,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 13:31:59,520 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 13:31:59,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 13:31:59,520 INFO L85 PathProgramCache]: Analyzing trace with hash -326002327, now seen corresponding path program 1 times [2025-01-09 13:31:59,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 13:31:59,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540131692] [2025-01-09 13:31:59,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 13:31:59,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 13:31:59,533 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-01-09 13:31:59,564 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-01-09 13:31:59,566 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 13:31:59,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 13:32:00,842 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-01-09 13:32:00,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 13:32:00,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540131692] [2025-01-09 13:32:00,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540131692] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 13:32:00,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 13:32:00,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-09 13:32:00,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438046205] [2025-01-09 13:32:00,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 13:32:00,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 13:32:00,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 13:32:00,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 13:32:00,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-01-09 13:32:00,844 INFO L87 Difference]: Start difference. First operand 90 states and 126 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-01-09 13:32:01,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 13:32:01,612 INFO L93 Difference]: Finished difference Result 106 states and 146 transitions. [2025-01-09 13:32:01,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 13:32:01,612 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 73 [2025-01-09 13:32:01,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 13:32:01,613 INFO L225 Difference]: With dead ends: 106 [2025-01-09 13:32:01,613 INFO L226 Difference]: Without dead ends: 104 [2025-01-09 13:32:01,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2025-01-09 13:32:01,614 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 31 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 13:32:01,614 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 245 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 13:32:01,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2025-01-09 13:32:01,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 86. [2025-01-09 13:32:01,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 63 states have internal predecessors, (81), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-01-09 13:32:01,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 121 transitions. [2025-01-09 13:32:01,629 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 121 transitions. Word has length 73 [2025-01-09 13:32:01,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 13:32:01,630 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 121 transitions. [2025-01-09 13:32:01,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-01-09 13:32:01,630 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 121 transitions. [2025-01-09 13:32:01,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-01-09 13:32:01,633 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 13:32:01,634 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 13:32:01,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 13:32:01,634 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 13:32:01,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 13:32:01,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1181865378, now seen corresponding path program 1 times [2025-01-09 13:32:01,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 13:32:01,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688502289] [2025-01-09 13:32:01,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 13:32:01,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 13:32:01,648 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-01-09 13:32:01,707 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-01-09 13:32:01,708 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 13:32:01,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 13:32:04,847 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked. [2025-01-09 13:32:04,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 13:32:04,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688502289] [2025-01-09 13:32:04,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688502289] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 13:32:04,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 13:32:04,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 13:32:04,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897758149] [2025-01-09 13:32:04,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 13:32:04,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 13:32:04,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 13:32:04,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 13:32:04,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 13:32:04,848 INFO L87 Difference]: Start difference. First operand 86 states and 121 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-01-09 13:32:06,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 13:32:06,045 INFO L93 Difference]: Finished difference Result 120 states and 163 transitions. [2025-01-09 13:32:06,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 13:32:06,046 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 141 [2025-01-09 13:32:06,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 13:32:06,048 INFO L225 Difference]: With dead ends: 120 [2025-01-09 13:32:06,050 INFO L226 Difference]: Without dead ends: 118 [2025-01-09 13:32:06,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-01-09 13:32:06,051 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 48 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 13:32:06,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 270 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 13:32:06,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2025-01-09 13:32:06,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 93. [2025-01-09 13:32:06,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 70 states have (on average 1.3142857142857143) internal successors, (92), 70 states have internal predecessors, (92), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-01-09 13:32:06,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 132 transitions. [2025-01-09 13:32:06,067 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 132 transitions. Word has length 141 [2025-01-09 13:32:06,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 13:32:06,067 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 132 transitions. [2025-01-09 13:32:06,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-01-09 13:32:06,068 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 132 transitions. [2025-01-09 13:32:06,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-01-09 13:32:06,069 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 13:32:06,069 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 13:32:06,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 13:32:06,070 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 13:32:06,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 13:32:06,070 INFO L85 PathProgramCache]: Analyzing trace with hash 2072227760, now seen corresponding path program 1 times [2025-01-09 13:32:06,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 13:32:06,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862842470] [2025-01-09 13:32:06,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 13:32:06,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 13:32:06,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-01-09 13:32:06,093 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-01-09 13:32:06,094 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 13:32:06,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 13:32:06,141 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked. [2025-01-09 13:32:06,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 13:32:06,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862842470] [2025-01-09 13:32:06,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862842470] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 13:32:06,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 13:32:06,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 13:32:06,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883358404] [2025-01-09 13:32:06,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 13:32:06,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 13:32:06,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 13:32:06,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 13:32:06,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 13:32:06,145 INFO L87 Difference]: Start difference. First operand 93 states and 132 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-01-09 13:32:06,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 13:32:06,175 INFO L93 Difference]: Finished difference Result 171 states and 244 transitions. [2025-01-09 13:32:06,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 13:32:06,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 142 [2025-01-09 13:32:06,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 13:32:06,178 INFO L225 Difference]: With dead ends: 171 [2025-01-09 13:32:06,178 INFO L226 Difference]: Without dead ends: 112 [2025-01-09 13:32:06,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 13:32:06,178 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 16 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 13:32:06,179 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 96 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 13:32:06,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2025-01-09 13:32:06,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 92. [2025-01-09 13:32:06,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 69 states have (on average 1.3043478260869565) internal successors, (90), 69 states have internal predecessors, (90), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-01-09 13:32:06,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 130 transitions. [2025-01-09 13:32:06,185 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 130 transitions. Word has length 142 [2025-01-09 13:32:06,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 13:32:06,186 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 130 transitions. [2025-01-09 13:32:06,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-01-09 13:32:06,186 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 130 transitions. [2025-01-09 13:32:06,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-01-09 13:32:06,190 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 13:32:06,191 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 13:32:06,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 13:32:06,191 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 13:32:06,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 13:32:06,191 INFO L85 PathProgramCache]: Analyzing trace with hash 179705342, now seen corresponding path program 1 times [2025-01-09 13:32:06,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 13:32:06,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123371132] [2025-01-09 13:32:06,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 13:32:06,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 13:32:06,197 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-01-09 13:32:06,230 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-01-09 13:32:06,231 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 13:32:06,231 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 13:32:07,719 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked. [2025-01-09 13:32:07,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 13:32:07,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123371132] [2025-01-09 13:32:07,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123371132] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 13:32:07,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 13:32:07,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 13:32:07,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834106801] [2025-01-09 13:32:07,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 13:32:07,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 13:32:07,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 13:32:07,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 13:32:07,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-01-09 13:32:07,721 INFO L87 Difference]: Start difference. First operand 92 states and 130 transitions. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-01-09 13:32:08,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 13:32:08,673 INFO L93 Difference]: Finished difference Result 137 states and 186 transitions. [2025-01-09 13:32:08,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 13:32:08,673 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 142 [2025-01-09 13:32:08,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 13:32:08,675 INFO L225 Difference]: With dead ends: 137 [2025-01-09 13:32:08,675 INFO L226 Difference]: Without dead ends: 135 [2025-01-09 13:32:08,675 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-01-09 13:32:08,676 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 49 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 13:32:08,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 329 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 13:32:08,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2025-01-09 13:32:08,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 93. [2025-01-09 13:32:08,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 70 states have (on average 1.3142857142857143) internal successors, (92), 70 states have internal predecessors, (92), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-01-09 13:32:08,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 132 transitions. [2025-01-09 13:32:08,687 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 132 transitions. Word has length 142 [2025-01-09 13:32:08,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 13:32:08,688 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 132 transitions. [2025-01-09 13:32:08,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-01-09 13:32:08,688 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 132 transitions. [2025-01-09 13:32:08,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-01-09 13:32:08,691 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 13:32:08,692 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 13:32:08,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 13:32:08,692 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 13:32:08,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 13:32:08,692 INFO L85 PathProgramCache]: Analyzing trace with hash -500353028, now seen corresponding path program 1 times [2025-01-09 13:32:08,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 13:32:08,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995425872] [2025-01-09 13:32:08,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 13:32:08,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 13:32:08,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-01-09 13:32:08,751 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-01-09 13:32:08,752 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 13:32:08,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 13:32:11,024 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked. [2025-01-09 13:32:11,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 13:32:11,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995425872] [2025-01-09 13:32:11,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995425872] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 13:32:11,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 13:32:11,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-09 13:32:11,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804012027] [2025-01-09 13:32:11,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 13:32:11,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 13:32:11,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 13:32:11,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 13:32:11,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-01-09 13:32:11,026 INFO L87 Difference]: Start difference. First operand 93 states and 132 transitions. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-01-09 13:32:12,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 13:32:12,323 INFO L93 Difference]: Finished difference Result 127 states and 171 transitions. [2025-01-09 13:32:12,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 13:32:12,324 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 142 [2025-01-09 13:32:12,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 13:32:12,325 INFO L225 Difference]: With dead ends: 127 [2025-01-09 13:32:12,325 INFO L226 Difference]: Without dead ends: 125 [2025-01-09 13:32:12,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-01-09 13:32:12,325 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 32 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 13:32:12,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 395 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 13:32:12,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2025-01-09 13:32:12,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 85. [2025-01-09 13:32:12,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 62 states have (on average 1.2903225806451613) internal successors, (80), 62 states have internal predecessors, (80), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-01-09 13:32:12,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 120 transitions. [2025-01-09 13:32:12,331 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 120 transitions. Word has length 142 [2025-01-09 13:32:12,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 13:32:12,332 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 120 transitions. [2025-01-09 13:32:12,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-01-09 13:32:12,332 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2025-01-09 13:32:12,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-01-09 13:32:12,333 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 13:32:12,333 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 13:32:12,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 13:32:12,333 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 13:32:12,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 13:32:12,334 INFO L85 PathProgramCache]: Analyzing trace with hash 2132615592, now seen corresponding path program 1 times [2025-01-09 13:32:12,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 13:32:12,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446330740] [2025-01-09 13:32:12,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 13:32:12,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 13:32:12,340 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-01-09 13:32:12,348 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-01-09 13:32:12,348 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 13:32:12,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 13:32:12,385 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked. [2025-01-09 13:32:12,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 13:32:12,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446330740] [2025-01-09 13:32:12,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446330740] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 13:32:12,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 13:32:12,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 13:32:12,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091057901] [2025-01-09 13:32:12,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 13:32:12,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 13:32:12,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 13:32:12,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 13:32:12,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 13:32:12,388 INFO L87 Difference]: Start difference. First operand 85 states and 120 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-01-09 13:32:12,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 13:32:12,409 INFO L93 Difference]: Finished difference Result 146 states and 207 transitions. [2025-01-09 13:32:12,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 13:32:12,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 142 [2025-01-09 13:32:12,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 13:32:12,411 INFO L225 Difference]: With dead ends: 146 [2025-01-09 13:32:12,411 INFO L226 Difference]: Without dead ends: 87 [2025-01-09 13:32:12,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 13:32:12,411 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 15 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 13:32:12,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 112 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 13:32:12,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2025-01-09 13:32:12,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 77. [2025-01-09 13:32:12,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 54 states have (on average 1.2222222222222223) internal successors, (66), 54 states have internal predecessors, (66), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-01-09 13:32:12,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 106 transitions. [2025-01-09 13:32:12,420 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 106 transitions. Word has length 142 [2025-01-09 13:32:12,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 13:32:12,421 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 106 transitions. [2025-01-09 13:32:12,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-01-09 13:32:12,421 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 106 transitions. [2025-01-09 13:32:12,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2025-01-09 13:32:12,422 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 13:32:12,422 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 13:32:12,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 13:32:12,423 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 13:32:12,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 13:32:12,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1483757288, now seen corresponding path program 1 times [2025-01-09 13:32:12,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 13:32:12,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244581161] [2025-01-09 13:32:12,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 13:32:12,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 13:32:12,429 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-01-09 13:32:12,444 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-01-09 13:32:12,444 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 13:32:12,444 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 13:32:12,530 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 10 proven. 17 refuted. 0 times theorem prover too weak. 761 trivial. 0 not checked. [2025-01-09 13:32:12,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 13:32:12,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244581161] [2025-01-09 13:32:12,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244581161] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 13:32:12,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121674527] [2025-01-09 13:32:12,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 13:32:12,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 13:32:12,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 13:32:12,533 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 13:32:12,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 13:32:12,569 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-01-09 13:32:12,607 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-01-09 13:32:12,608 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 13:32:12,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 13:32:12,610 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 13:32:12,613 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 13:32:12,779 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 9 proven. 418 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2025-01-09 13:32:12,781 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 13:32:12,960 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 761 trivial. 0 not checked. [2025-01-09 13:32:12,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121674527] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 13:32:12,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 13:32:12,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 5] total 7 [2025-01-09 13:32:12,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452099452] [2025-01-09 13:32:12,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 13:32:12,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 13:32:12,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 13:32:12,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 13:32:12,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 13:32:12,963 INFO L87 Difference]: Start difference. First operand 77 states and 106 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2025-01-09 13:32:13,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 13:32:13,013 INFO L93 Difference]: Finished difference Result 173 states and 239 transitions. [2025-01-09 13:32:13,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 13:32:13,013 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) Word has length 143 [2025-01-09 13:32:13,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 13:32:13,014 INFO L225 Difference]: With dead ends: 173 [2025-01-09 13:32:13,014 INFO L226 Difference]: Without dead ends: 122 [2025-01-09 13:32:13,015 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 284 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-01-09 13:32:13,015 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 38 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 13:32:13,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 285 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 13:32:13,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2025-01-09 13:32:13,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 112. [2025-01-09 13:32:13,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 78 states have (on average 1.2179487179487178) internal successors, (95), 78 states have internal predecessors, (95), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2025-01-09 13:32:13,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 155 transitions. [2025-01-09 13:32:13,022 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 155 transitions. Word has length 143 [2025-01-09 13:32:13,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 13:32:13,022 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 155 transitions. [2025-01-09 13:32:13,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2025-01-09 13:32:13,022 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 155 transitions. [2025-01-09 13:32:13,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-01-09 13:32:13,023 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 13:32:13,024 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 13:32:13,030 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 13:32:13,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 13:32:13,228 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 13:32:13,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 13:32:13,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1546637972, now seen corresponding path program 1 times [2025-01-09 13:32:13,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 13:32:13,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912658488] [2025-01-09 13:32:13,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 13:32:13,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 13:32:13,235 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-01-09 13:32:13,292 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-01-09 13:32:13,293 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 13:32:13,293 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 13:32:13,682 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 51 proven. 123 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2025-01-09 13:32:13,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 13:32:13,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912658488] [2025-01-09 13:32:13,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912658488] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 13:32:13,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346362313] [2025-01-09 13:32:13,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 13:32:13,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 13:32:13,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 13:32:13,685 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 13:32:13,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 13:32:13,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-01-09 13:32:13,760 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-01-09 13:32:13,760 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 13:32:13,760 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 13:32:13,763 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-01-09 13:32:13,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 13:32:14,129 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 543 proven. 24 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2025-01-09 13:32:14,131 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 13:32:14,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346362313] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 13:32:14,352 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 13:32:14,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 15] total 18 [2025-01-09 13:32:14,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803168731] [2025-01-09 13:32:14,353 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 13:32:14,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-09 13:32:14,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 13:32:14,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-09 13:32:14,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2025-01-09 13:32:14,356 INFO L87 Difference]: Start difference. First operand 112 states and 155 transitions. Second operand has 18 states, 18 states have (on average 3.611111111111111) internal successors, (65), 16 states have internal predecessors, (65), 6 states have call successors, (37), 5 states have call predecessors, (37), 7 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) [2025-01-09 13:32:14,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 13:32:14,617 INFO L93 Difference]: Finished difference Result 182 states and 230 transitions. [2025-01-09 13:32:14,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-09 13:32:14,618 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.611111111111111) internal successors, (65), 16 states have internal predecessors, (65), 6 states have call successors, (37), 5 states have call predecessors, (37), 7 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) Word has length 144 [2025-01-09 13:32:14,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 13:32:14,618 INFO L225 Difference]: With dead ends: 182 [2025-01-09 13:32:14,619 INFO L226 Difference]: Without dead ends: 0 [2025-01-09 13:32:14,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2025-01-09 13:32:14,620 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 95 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 13:32:14,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 172 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 13:32:14,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-09 13:32:14,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-09 13:32:14,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 13:32:14,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-09 13:32:14,623 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 144 [2025-01-09 13:32:14,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 13:32:14,623 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-09 13:32:14,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.611111111111111) internal successors, (65), 16 states have internal predecessors, (65), 6 states have call successors, (37), 5 states have call predecessors, (37), 7 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) [2025-01-09 13:32:14,623 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-09 13:32:14,624 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-09 13:32:14,626 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 13:32:14,633 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 13:32:14,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 13:32:14,829 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 13:32:14,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-09 13:32:15,250 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 13:32:15,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 01:32:15 BoogieIcfgContainer [2025-01-09 13:32:15,261 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 13:32:15,262 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 13:32:15,262 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 13:32:15,262 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 13:32:15,264 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:31:56" (3/4) ... [2025-01-09 13:32:15,265 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 13:32:15,270 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-01-09 13:32:15,274 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-01-09 13:32:15,274 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-01-09 13:32:15,275 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-09 13:32:15,275 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 13:32:15,339 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 13:32:15,339 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 13:32:15,339 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 13:32:15,341 INFO L158 Benchmark]: Toolchain (without parser) took 19742.73ms. Allocated memory was 167.8MB in the beginning and 385.9MB in the end (delta: 218.1MB). Free memory was 129.5MB in the beginning and 200.1MB in the end (delta: -70.6MB). Peak memory consumption was 142.8MB. Max. memory is 16.1GB. [2025-01-09 13:32:15,341 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory was 126.2MB in the beginning and 125.9MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 13:32:15,341 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.63ms. Allocated memory is still 167.8MB. Free memory was 129.5MB in the beginning and 117.0MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 13:32:15,342 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.08ms. Allocated memory is still 167.8MB. Free memory was 117.0MB in the beginning and 114.2MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 13:32:15,342 INFO L158 Benchmark]: Boogie Preprocessor took 39.97ms. Allocated memory is still 167.8MB. Free memory was 114.2MB in the beginning and 110.0MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 13:32:15,342 INFO L158 Benchmark]: RCFGBuilder took 306.91ms. Allocated memory is still 167.8MB. Free memory was 110.0MB in the beginning and 92.9MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 13:32:15,343 INFO L158 Benchmark]: TraceAbstraction took 19043.35ms. Allocated memory was 167.8MB in the beginning and 385.9MB in the end (delta: 218.1MB). Free memory was 92.4MB in the beginning and 208.4MB in the end (delta: -115.9MB). Peak memory consumption was 109.3MB. Max. memory is 16.1GB. [2025-01-09 13:32:15,343 INFO L158 Benchmark]: Witness Printer took 76.97ms. Allocated memory is still 385.9MB. Free memory was 208.4MB in the beginning and 200.1MB in the end (delta: 8.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 13:32:15,344 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory was 126.2MB in the beginning and 125.9MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.63ms. Allocated memory is still 167.8MB. Free memory was 129.5MB in the beginning and 117.0MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.08ms. Allocated memory is still 167.8MB. Free memory was 117.0MB in the beginning and 114.2MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.97ms. Allocated memory is still 167.8MB. Free memory was 114.2MB in the beginning and 110.0MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 306.91ms. Allocated memory is still 167.8MB. Free memory was 110.0MB in the beginning and 92.9MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 19043.35ms. Allocated memory was 167.8MB in the beginning and 385.9MB in the end (delta: 218.1MB). Free memory was 92.4MB in the beginning and 208.4MB in the end (delta: -115.9MB). Peak memory consumption was 109.3MB. Max. memory is 16.1GB. * Witness Printer took 76.97ms. Allocated memory is still 385.9MB. Free memory was 208.4MB in the beginning and 200.1MB in the end (delta: 8.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.6s, OverallIterations: 11, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 410 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 408 mSDsluCounter, 2366 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1773 mSDsCounter, 67 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1605 IncrementalHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 67 mSolverCounterUnsat, 593 mSDtfsCounter, 1605 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 700 GetRequests, 610 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred in iteration=10, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 188 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 11.4s InterpolantComputationTime, 1644 NumberOfCodeBlocks, 1644 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1772 ConstructedInterpolants, 0 QuantifiedInterpolants, 7603 SizeOfPredicates, 6 NumberOfNonLiveVariables, 827 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 8162/8780 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: ((((((1073741823 <= var_1_10) && (var_1_11 == 0)) && (127 <= var_1_5)) && (last_1_var_1_11 == 0)) && (var_1_5 <= 254)) && (var_1_10 <= 2147483647)) RESULT: Ultimate proved your program to be correct! [2025-01-09 13:32:15,406 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE