./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-59.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-59.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 613ea7964a044fd06639761bd4fafbf6e497c5859bca7c7122d30954c90058a2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 10:47:24,499 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 10:47:24,584 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 10:47:24,592 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 10:47:24,592 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 10:47:24,613 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 10:47:24,613 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 10:47:24,614 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 10:47:24,614 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 10:47:24,615 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 10:47:24,615 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 10:47:24,615 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 10:47:24,616 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 10:47:24,616 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 10:47:24,617 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 10:47:24,617 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 10:47:24,618 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 10:47:24,621 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 10:47:24,621 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 10:47:24,622 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 10:47:24,622 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 10:47:24,622 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 10:47:24,623 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 10:47:24,623 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 10:47:24,623 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 10:47:24,623 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 10:47:24,624 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 10:47:24,624 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 10:47:24,624 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 10:47:24,624 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 10:47:24,624 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 10:47:24,625 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 10:47:24,625 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 10:47:24,625 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 10:47:24,625 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 10:47:24,626 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 10:47:24,626 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 10:47:24,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 10:47:24,628 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 10:47:24,628 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 10:47:24,628 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 10:47:24,629 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 10:47:24,629 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 613ea7964a044fd06639761bd4fafbf6e497c5859bca7c7122d30954c90058a2 [2024-10-11 10:47:24,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 10:47:24,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 10:47:24,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 10:47:24,915 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 10:47:24,915 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 10:47:24,916 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-59.i [2024-10-11 10:47:26,372 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 10:47:26,559 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 10:47:26,559 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-59.i [2024-10-11 10:47:26,571 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/a0a1b3115/d0c19403b642468e9d55a82bb91ebf85/FLAGae4b46b40 [2024-10-11 10:47:26,584 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/a0a1b3115/d0c19403b642468e9d55a82bb91ebf85 [2024-10-11 10:47:26,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 10:47:26,589 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 10:47:26,590 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 10:47:26,590 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 10:47:26,596 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 10:47:26,597 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 10:47:26" (1/1) ... [2024-10-11 10:47:26,597 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ed74049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:47:26, skipping insertion in model container [2024-10-11 10:47:26,598 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 10:47:26" (1/1) ... [2024-10-11 10:47:26,631 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 10:47:26,810 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-59.i[917,930] [2024-10-11 10:47:26,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 10:47:26,858 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 10:47:26,869 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-59.i[917,930] [2024-10-11 10:47:26,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 10:47:26,902 INFO L204 MainTranslator]: Completed translation [2024-10-11 10:47:26,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:47:26 WrapperNode [2024-10-11 10:47:26,903 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 10:47:26,904 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 10:47:26,904 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 10:47:26,904 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 10:47:26,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:47:26" (1/1) ... [2024-10-11 10:47:26,918 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:47:26" (1/1) ... [2024-10-11 10:47:26,937 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 117 [2024-10-11 10:47:26,937 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 10:47:26,938 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 10:47:26,938 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 10:47:26,939 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 10:47:26,949 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:47:26" (1/1) ... [2024-10-11 10:47:26,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:47:26" (1/1) ... [2024-10-11 10:47:26,951 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:47:26" (1/1) ... [2024-10-11 10:47:26,963 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]. [2024-10-11 10:47:26,963 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:47:26" (1/1) ... [2024-10-11 10:47:26,964 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:47:26" (1/1) ... [2024-10-11 10:47:26,968 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:47:26" (1/1) ... [2024-10-11 10:47:26,970 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:47:26" (1/1) ... [2024-10-11 10:47:26,972 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:47:26" (1/1) ... [2024-10-11 10:47:26,973 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:47:26" (1/1) ... [2024-10-11 10:47:26,977 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 10:47:26,978 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 10:47:26,978 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 10:47:26,978 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 10:47:26,979 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:47:26" (1/1) ... [2024-10-11 10:47:26,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 10:47:26,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 10:47:27,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 10:47:27,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 10:47:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 10:47:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 10:47:27,053 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 10:47:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 10:47:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 10:47:27,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 10:47:27,114 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 10:47:27,116 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 10:47:27,384 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-10-11 10:47:27,384 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 10:47:27,449 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 10:47:27,449 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 10:47:27,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 10:47:27 BoogieIcfgContainer [2024-10-11 10:47:27,450 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 10:47:27,453 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 10:47:27,454 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 10:47:27,457 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 10:47:27,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 10:47:26" (1/3) ... [2024-10-11 10:47:27,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3404e3c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 10:47:27, skipping insertion in model container [2024-10-11 10:47:27,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:47:26" (2/3) ... [2024-10-11 10:47:27,459 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3404e3c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 10:47:27, skipping insertion in model container [2024-10-11 10:47:27,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 10:47:27" (3/3) ... [2024-10-11 10:47:27,460 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-59.i [2024-10-11 10:47:27,475 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 10:47:27,476 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 10:47:27,530 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 10:47:27,540 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;@c5ad98d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 10:47:27,540 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 10:47:27,545 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-11 10:47:27,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-11 10:47:27,561 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 10:47:27,562 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 10:47:27,562 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 10:47:27,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 10:47:27,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1523944797, now seen corresponding path program 1 times [2024-10-11 10:47:27,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 10:47:27,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403703094] [2024-10-11 10:47:27,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 10:47:27,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 10:47:27,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:27,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 10:47:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:27,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 10:47:27,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:27,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 10:47:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:27,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 10:47:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:27,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 10:47:27,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:27,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 10:47:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:27,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 10:47:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:27,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 10:47:27,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:27,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 10:47:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:27,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 10:47:27,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:27,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 10:47:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:27,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 10:47:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:27,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 10:47:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:27,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 10:47:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:27,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 10:47:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:27,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 10:47:27,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:27,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 10:47:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:27,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 10:47:27,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:27,988 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-11 10:47:27,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 10:47:27,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403703094] [2024-10-11 10:47:27,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403703094] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 10:47:27,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 10:47:27,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 10:47:27,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518351682] [2024-10-11 10:47:27,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 10:47:27,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 10:47:27,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 10:47:28,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 10:47:28,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 10:47:28,029 INFO L87 Difference]: Start difference. First operand has 46 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-11 10:47:28,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 10:47:28,077 INFO L93 Difference]: Finished difference Result 89 states and 160 transitions. [2024-10-11 10:47:28,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 10:47:28,080 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 107 [2024-10-11 10:47:28,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 10:47:28,088 INFO L225 Difference]: With dead ends: 89 [2024-10-11 10:47:28,089 INFO L226 Difference]: Without dead ends: 44 [2024-10-11 10:47:28,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 10:47:28,096 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 10:47:28,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 10:47:28,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-10-11 10:47:28,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-10-11 10:47:28,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 24 states have internal predecessors, (31), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-11 10:47:28,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 67 transitions. [2024-10-11 10:47:28,213 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 67 transitions. Word has length 107 [2024-10-11 10:47:28,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 10:47:28,213 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 67 transitions. [2024-10-11 10:47:28,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-11 10:47:28,214 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 67 transitions. [2024-10-11 10:47:28,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-11 10:47:28,218 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 10:47:28,218 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 10:47:28,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 10:47:28,219 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 10:47:28,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 10:47:28,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1823148387, now seen corresponding path program 1 times [2024-10-11 10:47:28,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 10:47:28,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34021007] [2024-10-11 10:47:28,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 10:47:28,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 10:47:28,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:28,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 10:47:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:28,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 10:47:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:28,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 10:47:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:28,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 10:47:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:28,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 10:47:28,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:28,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 10:47:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:28,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 10:47:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:28,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 10:47:28,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:28,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 10:47:28,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:28,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 10:47:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:28,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 10:47:28,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:28,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 10:47:28,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:28,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 10:47:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:28,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 10:47:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:28,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 10:47:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:28,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 10:47:28,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:28,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 10:47:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:28,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 10:47:28,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:28,714 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-11 10:47:28,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 10:47:28,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34021007] [2024-10-11 10:47:28,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34021007] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 10:47:28,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 10:47:28,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 10:47:28,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866914469] [2024-10-11 10:47:28,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 10:47:28,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 10:47:28,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 10:47:28,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 10:47:28,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 10:47:28,722 INFO L87 Difference]: Start difference. First operand 44 states and 67 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-11 10:47:28,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 10:47:28,920 INFO L93 Difference]: Finished difference Result 131 states and 200 transitions. [2024-10-11 10:47:28,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 10:47:28,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 107 [2024-10-11 10:47:28,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 10:47:28,925 INFO L225 Difference]: With dead ends: 131 [2024-10-11 10:47:28,925 INFO L226 Difference]: Without dead ends: 88 [2024-10-11 10:47:28,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 10:47:28,928 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 36 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 10:47:28,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 169 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 10:47:28,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-10-11 10:47:28,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 79. [2024-10-11 10:47:28,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 40 states have (on average 1.2) internal successors, (48), 40 states have internal predecessors, (48), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-11 10:47:28,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 120 transitions. [2024-10-11 10:47:28,965 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 120 transitions. Word has length 107 [2024-10-11 10:47:28,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 10:47:28,966 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 120 transitions. [2024-10-11 10:47:28,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-11 10:47:28,966 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 120 transitions. [2024-10-11 10:47:28,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-11 10:47:28,968 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 10:47:28,968 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 10:47:28,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 10:47:28,969 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 10:47:28,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 10:47:28,969 INFO L85 PathProgramCache]: Analyzing trace with hash 2108675400, now seen corresponding path program 1 times [2024-10-11 10:47:28,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 10:47:28,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828092897] [2024-10-11 10:47:28,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 10:47:28,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 10:47:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:36,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 10:47:36,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:36,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 10:47:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:36,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 10:47:36,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:36,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 10:47:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:36,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 10:47:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:36,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 10:47:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:36,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 10:47:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:36,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 10:47:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:36,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 10:47:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:36,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 10:47:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:36,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 10:47:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:36,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 10:47:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:36,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 10:47:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:36,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 10:47:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:36,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 10:47:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:36,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 10:47:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:36,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 10:47:36,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:36,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 10:47:36,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:36,669 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-11 10:47:36,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 10:47:36,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828092897] [2024-10-11 10:47:36,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828092897] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 10:47:36,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 10:47:36,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 10:47:36,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740806128] [2024-10-11 10:47:36,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 10:47:36,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 10:47:36,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 10:47:36,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 10:47:36,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 10:47:36,672 INFO L87 Difference]: Start difference. First operand 79 states and 120 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-11 10:47:37,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 10:47:37,063 INFO L93 Difference]: Finished difference Result 95 states and 140 transitions. [2024-10-11 10:47:37,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 10:47:37,063 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 108 [2024-10-11 10:47:37,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 10:47:37,065 INFO L225 Difference]: With dead ends: 95 [2024-10-11 10:47:37,065 INFO L226 Difference]: Without dead ends: 93 [2024-10-11 10:47:37,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-10-11 10:47:37,068 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 37 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 10:47:37,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 158 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 10:47:37,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-10-11 10:47:37,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 83. [2024-10-11 10:47:37,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 44 states have internal predecessors, (54), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-11 10:47:37,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 126 transitions. [2024-10-11 10:47:37,085 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 126 transitions. Word has length 108 [2024-10-11 10:47:37,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 10:47:37,086 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 126 transitions. [2024-10-11 10:47:37,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-11 10:47:37,086 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 126 transitions. [2024-10-11 10:47:37,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-11 10:47:37,088 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 10:47:37,088 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 10:47:37,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 10:47:37,089 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 10:47:37,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 10:47:37,089 INFO L85 PathProgramCache]: Analyzing trace with hash 704969848, now seen corresponding path program 1 times [2024-10-11 10:47:37,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 10:47:37,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048371644] [2024-10-11 10:47:37,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 10:47:37,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 10:47:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:41,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 10:47:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:41,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 10:47:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:41,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 10:47:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:41,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 10:47:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:41,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 10:47:41,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:41,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 10:47:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:41,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 10:47:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:41,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 10:47:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:41,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 10:47:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:41,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 10:47:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:41,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 10:47:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:41,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 10:47:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:41,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 10:47:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:41,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 10:47:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:41,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 10:47:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:41,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 10:47:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:41,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 10:47:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:41,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 10:47:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:41,843 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-11 10:47:41,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 10:47:41,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048371644] [2024-10-11 10:47:41,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048371644] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 10:47:41,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 10:47:41,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 10:47:41,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307621934] [2024-10-11 10:47:41,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 10:47:41,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 10:47:41,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 10:47:41,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 10:47:41,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-11 10:47:41,846 INFO L87 Difference]: Start difference. First operand 83 states and 126 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-11 10:47:42,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 10:47:42,783 INFO L93 Difference]: Finished difference Result 93 states and 138 transitions. [2024-10-11 10:47:42,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 10:47:42,784 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 109 [2024-10-11 10:47:42,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 10:47:42,786 INFO L225 Difference]: With dead ends: 93 [2024-10-11 10:47:42,786 INFO L226 Difference]: Without dead ends: 91 [2024-10-11 10:47:42,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-10-11 10:47:42,787 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 12 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 10:47:42,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 247 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 10:47:42,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-10-11 10:47:42,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 84. [2024-10-11 10:47:42,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 45 states have (on average 1.2444444444444445) internal successors, (56), 45 states have internal predecessors, (56), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-11 10:47:42,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 128 transitions. [2024-10-11 10:47:42,800 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 128 transitions. Word has length 109 [2024-10-11 10:47:42,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 10:47:42,801 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 128 transitions. [2024-10-11 10:47:42,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-11 10:47:42,802 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 128 transitions. [2024-10-11 10:47:42,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-10-11 10:47:42,806 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 10:47:42,807 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 10:47:42,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 10:47:42,807 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 10:47:42,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 10:47:42,810 INFO L85 PathProgramCache]: Analyzing trace with hash 857893907, now seen corresponding path program 1 times [2024-10-11 10:47:42,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 10:47:42,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442426115] [2024-10-11 10:47:42,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 10:47:42,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 10:47:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 10:47:44,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 10:47:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 10:47:44,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 10:47:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 10:47:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 10:47:44,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 10:47:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 10:47:44,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 10:47:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 10:47:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 10:47:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 10:47:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 10:47:44,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 10:47:44,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 10:47:44,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 10:47:44,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 10:47:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 10:47:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 10:47:44,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 10:47:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-11 10:47:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-11 10:47:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-11 10:47:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-11 10:47:44,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 10:47:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 10:47:44,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 10:47:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-11 10:47:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-11 10:47:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-11 10:47:44,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 10:47:44,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-11 10:47:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-11 10:47:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-10-11 10:47:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-10-11 10:47:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-10-11 10:47:44,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:44,641 INFO L134 CoverageAnalysis]: Checked inductivity of 2554 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2549 trivial. 0 not checked. [2024-10-11 10:47:44,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 10:47:44,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442426115] [2024-10-11 10:47:44,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442426115] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 10:47:44,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 10:47:44,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 10:47:44,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774777390] [2024-10-11 10:47:44,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 10:47:44,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 10:47:44,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 10:47:44,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 10:47:44,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-11 10:47:44,644 INFO L87 Difference]: Start difference. First operand 84 states and 128 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-11 10:47:45,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 10:47:45,132 INFO L93 Difference]: Finished difference Result 107 states and 158 transitions. [2024-10-11 10:47:45,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 10:47:45,133 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 216 [2024-10-11 10:47:45,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 10:47:45,135 INFO L225 Difference]: With dead ends: 107 [2024-10-11 10:47:45,135 INFO L226 Difference]: Without dead ends: 105 [2024-10-11 10:47:45,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-10-11 10:47:45,137 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 36 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 10:47:45,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 244 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 10:47:45,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-10-11 10:47:45,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 84. [2024-10-11 10:47:45,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 45 states have (on average 1.2444444444444445) internal successors, (56), 45 states have internal predecessors, (56), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-11 10:47:45,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 128 transitions. [2024-10-11 10:47:45,156 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 128 transitions. Word has length 216 [2024-10-11 10:47:45,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 10:47:45,157 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 128 transitions. [2024-10-11 10:47:45,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-11 10:47:45,158 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 128 transitions. [2024-10-11 10:47:45,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-10-11 10:47:45,162 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 10:47:45,162 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 10:47:45,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 10:47:45,162 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 10:47:45,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 10:47:45,165 INFO L85 PathProgramCache]: Analyzing trace with hash 585449229, now seen corresponding path program 1 times [2024-10-11 10:47:45,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 10:47:45,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427895622] [2024-10-11 10:47:45,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 10:47:45,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 10:47:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 10:47:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 10:47:47,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 10:47:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 10:47:47,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 10:47:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 10:47:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 10:47:47,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 10:47:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 10:47:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 10:47:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 10:47:47,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 10:47:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 10:47:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 10:47:47,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 10:47:47,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 10:47:47,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 10:47:47,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 10:47:47,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 10:47:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 10:47:47,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-11 10:47:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-11 10:47:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-11 10:47:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-11 10:47:47,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 10:47:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 10:47:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 10:47:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-11 10:47:47,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-11 10:47:47,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-11 10:47:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 10:47:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-11 10:47:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-11 10:47:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-10-11 10:47:47,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-10-11 10:47:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-10-11 10:47:47,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:47:47,144 INFO L134 CoverageAnalysis]: Checked inductivity of 2554 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2549 trivial. 0 not checked. [2024-10-11 10:47:47,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 10:47:47,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427895622] [2024-10-11 10:47:47,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427895622] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 10:47:47,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 10:47:47,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 10:47:47,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467636262] [2024-10-11 10:47:47,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 10:47:47,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 10:47:47,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 10:47:47,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 10:47:47,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-11 10:47:47,147 INFO L87 Difference]: Start difference. First operand 84 states and 128 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-11 10:47:47,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 10:47:47,612 INFO L93 Difference]: Finished difference Result 105 states and 156 transitions. [2024-10-11 10:47:47,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 10:47:47,613 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 217 [2024-10-11 10:47:47,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 10:47:47,614 INFO L225 Difference]: With dead ends: 105 [2024-10-11 10:47:47,614 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 10:47:47,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=92, Unknown=0, NotChecked=0, Total=156 [2024-10-11 10:47:47,616 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 35 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 10:47:47,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 245 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 10:47:47,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 10:47:47,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 10:47:47,617 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) [2024-10-11 10:47:47,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 10:47:47,617 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 217 [2024-10-11 10:47:47,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 10:47:47,618 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 10:47:47,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-11 10:47:47,618 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 10:47:47,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 10:47:47,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 10:47:47,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 10:47:47,624 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-11 10:47:47,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-11 10:47:47,658 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 10:47:47,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 10:47:47 BoogieIcfgContainer [2024-10-11 10:47:47,673 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 10:47:47,674 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 10:47:47,674 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 10:47:47,674 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 10:47:47,674 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 10:47:27" (3/4) ... [2024-10-11 10:47:47,676 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 10:47:47,680 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-10-11 10:47:47,684 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-10-11 10:47:47,684 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-11 10:47:47,684 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 10:47:47,684 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 10:47:47,790 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 10:47:47,791 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 10:47:47,791 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 10:47:47,792 INFO L158 Benchmark]: Toolchain (without parser) took 21203.80ms. Allocated memory was 199.2MB in the beginning and 734.0MB in the end (delta: 534.8MB). Free memory was 167.3MB in the beginning and 525.7MB in the end (delta: -358.4MB). Peak memory consumption was 176.7MB. Max. memory is 16.1GB. [2024-10-11 10:47:47,792 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 123.7MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 10:47:47,792 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.02ms. Allocated memory is still 199.2MB. Free memory was 167.3MB in the beginning and 152.9MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-11 10:47:47,792 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.74ms. Allocated memory is still 199.2MB. Free memory was 152.9MB in the beginning and 151.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 10:47:47,792 INFO L158 Benchmark]: Boogie Preprocessor took 39.01ms. Allocated memory is still 199.2MB. Free memory was 150.8MB in the beginning and 148.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 10:47:47,793 INFO L158 Benchmark]: RCFGBuilder took 472.05ms. Allocated memory is still 199.2MB. Free memory was 148.7MB in the beginning and 129.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-11 10:47:47,793 INFO L158 Benchmark]: TraceAbstraction took 20219.95ms. Allocated memory was 199.2MB in the beginning and 734.0MB in the end (delta: 534.8MB). Free memory was 129.8MB in the beginning and 530.9MB in the end (delta: -401.1MB). Peak memory consumption was 132.6MB. Max. memory is 16.1GB. [2024-10-11 10:47:47,793 INFO L158 Benchmark]: Witness Printer took 117.47ms. Allocated memory is still 734.0MB. Free memory was 530.9MB in the beginning and 525.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-11 10:47:47,798 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 123.7MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.02ms. Allocated memory is still 199.2MB. Free memory was 167.3MB in the beginning and 152.9MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.74ms. Allocated memory is still 199.2MB. Free memory was 152.9MB in the beginning and 151.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.01ms. Allocated memory is still 199.2MB. Free memory was 150.8MB in the beginning and 148.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 472.05ms. Allocated memory is still 199.2MB. Free memory was 148.7MB in the beginning and 129.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 20219.95ms. Allocated memory was 199.2MB in the beginning and 734.0MB in the end (delta: 534.8MB). Free memory was 129.8MB in the beginning and 530.9MB in the end (delta: -401.1MB). Peak memory consumption was 132.6MB. Max. memory is 16.1GB. * Witness Printer took 117.47ms. Allocated memory is still 734.0MB. Free memory was 530.9MB in the beginning and 525.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. 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, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.1s, OverallIterations: 6, TraceHistogramMax: 36, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 156 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 156 mSDsluCounter, 1127 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 779 mSDsCounter, 76 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 634 IncrementalHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 76 mSolverCounterUnsat, 348 mSDtfsCounter, 634 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 356 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=4, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 47 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 16.8s InterpolantComputationTime, 864 NumberOfCodeBlocks, 864 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 858 ConstructedInterpolants, 0 QuantifiedInterpolants, 3778 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 7556/7556 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 105]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2024-10-11 10:47:47,852 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE