./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-38.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-38.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 ca7b092571e2aaa668ed3cc711eaa0aa2bd05b3934760ddf140f8cffb6c5d917 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 15:48:55,511 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 15:48:55,602 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 15:48:55,609 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 15:48:55,610 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 15:48:55,649 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 15:48:55,650 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 15:48:55,650 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 15:48:55,651 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 15:48:55,651 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 15:48:55,651 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 15:48:55,653 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 15:48:55,654 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 15:48:55,657 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 15:48:55,657 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 15:48:55,657 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 15:48:55,658 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 15:48:55,658 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 15:48:55,658 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 15:48:55,662 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 15:48:55,662 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 15:48:55,663 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 15:48:55,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 15:48:55,663 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 15:48:55,664 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 15:48:55,664 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 15:48:55,664 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 15:48:55,664 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 15:48:55,664 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 15:48:55,665 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 15:48:55,665 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 15:48:55,665 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 15:48:55,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 15:48:55,666 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 15:48:55,666 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 15:48:55,666 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 15:48:55,668 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 15:48:55,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 15:48:55,669 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 15:48:55,669 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 15:48:55,669 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 15:48:55,669 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 15:48:55,670 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca7b092571e2aaa668ed3cc711eaa0aa2bd05b3934760ddf140f8cffb6c5d917 [2024-11-16 15:48:55,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 15:48:55,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 15:48:55,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 15:48:55,950 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 15:48:55,951 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 15:48:55,952 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-38.i [2024-11-16 15:48:57,416 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 15:48:57,607 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 15:48:57,608 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-38.i [2024-11-16 15:48:57,619 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb00ae631/ef1e3117d5ba4ab9b12609865c11adc2/FLAGf362cd788 [2024-11-16 15:48:57,979 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb00ae631/ef1e3117d5ba4ab9b12609865c11adc2 [2024-11-16 15:48:57,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 15:48:57,982 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 15:48:57,983 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 15:48:57,983 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 15:48:57,987 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 15:48:57,988 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:48:57" (1/1) ... [2024-11-16 15:48:57,989 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48b79d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:57, skipping insertion in model container [2024-11-16 15:48:57,989 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:48:57" (1/1) ... [2024-11-16 15:48:58,018 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 15:48:58,202 WARN L250 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_no-floats_file-38.i[916,929] [2024-11-16 15:48:58,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 15:48:58,264 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 15:48:58,276 WARN L250 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_no-floats_file-38.i[916,929] [2024-11-16 15:48:58,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 15:48:58,314 INFO L204 MainTranslator]: Completed translation [2024-11-16 15:48:58,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:58 WrapperNode [2024-11-16 15:48:58,315 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 15:48:58,316 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 15:48:58,317 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 15:48:58,317 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 15:48:58,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:58" (1/1) ... [2024-11-16 15:48:58,337 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:58" (1/1) ... [2024-11-16 15:48:58,387 INFO L138 Inliner]: procedures = 26, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 139 [2024-11-16 15:48:58,387 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 15:48:58,388 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 15:48:58,388 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 15:48:58,388 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 15:48:58,398 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:58" (1/1) ... [2024-11-16 15:48:58,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:58" (1/1) ... [2024-11-16 15:48:58,402 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:58" (1/1) ... [2024-11-16 15:48:58,428 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]. [2024-11-16 15:48:58,429 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:58" (1/1) ... [2024-11-16 15:48:58,430 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:58" (1/1) ... [2024-11-16 15:48:58,439 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:58" (1/1) ... [2024-11-16 15:48:58,440 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:58" (1/1) ... [2024-11-16 15:48:58,444 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:58" (1/1) ... [2024-11-16 15:48:58,446 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:58" (1/1) ... [2024-11-16 15:48:58,448 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 15:48:58,453 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 15:48:58,453 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 15:48:58,453 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 15:48:58,455 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:58" (1/1) ... [2024-11-16 15:48:58,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 15:48:58,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 15:48:58,490 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 15:48:58,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 15:48:58,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 15:48:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 15:48:58,542 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 15:48:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 15:48:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 15:48:58,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 15:48:58,635 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 15:48:58,637 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 15:48:58,963 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-16 15:48:58,964 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 15:48:58,978 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 15:48:58,978 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 15:48:58,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:48:58 BoogieIcfgContainer [2024-11-16 15:48:58,979 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 15:48:58,981 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 15:48:58,982 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 15:48:58,985 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 15:48:58,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:48:57" (1/3) ... [2024-11-16 15:48:58,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@181b5d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:48:58, skipping insertion in model container [2024-11-16 15:48:58,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:58" (2/3) ... [2024-11-16 15:48:58,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@181b5d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:48:58, skipping insertion in model container [2024-11-16 15:48:58,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:48:58" (3/3) ... [2024-11-16 15:48:58,988 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-38.i [2024-11-16 15:48:59,005 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 15:48:59,006 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 15:48:59,072 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 15:48:59,080 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;@2eb13aad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 15:48:59,080 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 15:48:59,086 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 40 states have internal predecessors, (48), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-16 15:48:59,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-16 15:48:59,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:48:59,108 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 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, 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] [2024-11-16 15:48:59,108 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:48:59,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:48:59,118 INFO L85 PathProgramCache]: Analyzing trace with hash -277570497, now seen corresponding path program 1 times [2024-11-16 15:48:59,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:48:59,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75135162] [2024-11-16 15:48:59,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:48:59,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:48:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:48:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:48:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:48:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:48:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 15:48:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:48:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 15:48:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 15:48:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 15:48:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 15:48:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 15:48:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 15:48:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 15:48:59,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 15:48:59,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 15:48:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 15:48:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 15:48:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 15:48:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 15:48:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 15:48:59,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 15:48:59,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 15:48:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 15:48:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 15:48:59,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 15:48:59,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 15:48:59,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 15:48:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-16 15:48:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:48:59,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-16 15:48:59,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:48:59,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75135162] [2024-11-16 15:48:59,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75135162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:48:59,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:48:59,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 15:48:59,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952537557] [2024-11-16 15:48:59,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:48:59,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 15:48:59,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:48:59,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 15:48:59,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 15:48:59,732 INFO L87 Difference]: Start difference. First operand has 70 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 40 states have internal predecessors, (48), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-16 15:48:59,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:48:59,768 INFO L93 Difference]: Finished difference Result 132 states and 229 transitions. [2024-11-16 15:48:59,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 15:48:59,770 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) Word has length 170 [2024-11-16 15:48:59,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:48:59,779 INFO L225 Difference]: With dead ends: 132 [2024-11-16 15:48:59,779 INFO L226 Difference]: Without dead ends: 65 [2024-11-16 15:48:59,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 15:48:59,788 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 15:48:59,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 15:48:59,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-16 15:48:59,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2024-11-16 15:48:59,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 35 states have internal predecessors, (40), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-16 15:48:59,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 96 transitions. [2024-11-16 15:48:59,852 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 96 transitions. Word has length 170 [2024-11-16 15:48:59,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:48:59,853 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 96 transitions. [2024-11-16 15:48:59,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-16 15:48:59,854 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 96 transitions. [2024-11-16 15:48:59,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-16 15:48:59,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:48:59,861 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 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, 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] [2024-11-16 15:48:59,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 15:48:59,862 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:48:59,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:48:59,863 INFO L85 PathProgramCache]: Analyzing trace with hash -355887041, now seen corresponding path program 1 times [2024-11-16 15:48:59,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:48:59,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136527706] [2024-11-16 15:48:59,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:48:59,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:48:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:49:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:49:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:49:00,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:49:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 15:49:00,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:49:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 15:49:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 15:49:00,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 15:49:00,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 15:49:00,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 15:49:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 15:49:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 15:49:00,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 15:49:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 15:49:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 15:49:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 15:49:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 15:49:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 15:49:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 15:49:00,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 15:49:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 15:49:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 15:49:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 15:49:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 15:49:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 15:49:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 15:49:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-16 15:49:00,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:49:00,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-16 15:49:00,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:49:00,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136527706] [2024-11-16 15:49:00,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136527706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:49:00,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:49:00,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 15:49:00,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397612453] [2024-11-16 15:49:00,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:49:00,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 15:49:00,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:49:00,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 15:49:00,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 15:49:00,237 INFO L87 Difference]: Start difference. First operand 65 states and 96 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-16 15:49:00,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:49:00,302 INFO L93 Difference]: Finished difference Result 167 states and 245 transitions. [2024-11-16 15:49:00,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 15:49:00,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 170 [2024-11-16 15:49:00,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:49:00,306 INFO L225 Difference]: With dead ends: 167 [2024-11-16 15:49:00,306 INFO L226 Difference]: Without dead ends: 105 [2024-11-16 15:49:00,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 15:49:00,310 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 55 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 15:49:00,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 178 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 15:49:00,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-16 15:49:00,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 101. [2024-11-16 15:49:00,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 54 states have (on average 1.1111111111111112) internal successors, (60), 55 states have internal predecessors, (60), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 43 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-16 15:49:00,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 148 transitions. [2024-11-16 15:49:00,341 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 148 transitions. Word has length 170 [2024-11-16 15:49:00,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:49:00,342 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 148 transitions. [2024-11-16 15:49:00,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-16 15:49:00,342 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 148 transitions. [2024-11-16 15:49:00,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-16 15:49:00,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:49:00,350 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 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, 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] [2024-11-16 15:49:00,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 15:49:00,350 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:49:00,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:49:00,351 INFO L85 PathProgramCache]: Analyzing trace with hash -327257890, now seen corresponding path program 1 times [2024-11-16 15:49:00,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:49:00,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250236302] [2024-11-16 15:49:00,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:49:00,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:49:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat