./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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_loopvsstraightlinecode_25-1loop_file-0.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 828b6f31ac8b338b9524f85315068e4bc72bfadb1d19ff8ea6318f966a3b277a --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 23:38:04,305 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:38:04,377 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 23:38:04,385 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:38:04,385 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 23:38:04,404 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:38:04,405 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 23:38:04,405 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 23:38:04,406 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 23:38:04,406 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 23:38:04,407 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:38:04,407 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 23:38:04,408 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:38:04,408 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:38:04,408 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 23:38:04,408 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:38:04,409 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:38:04,409 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:38:04,409 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:38:04,410 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:38:04,410 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:38:04,414 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:38:04,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:38:04,414 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:38:04,414 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:38:04,415 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:38:04,415 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:38:04,415 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:38:04,415 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:38:04,415 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 23:38:04,416 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 23:38:04,416 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 23:38:04,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 23:38:04,416 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:38:04,417 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:38:04,417 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:38:04,417 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 23:38:04,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:38:04,420 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 23:38:04,420 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 23:38:04,421 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 23:38:04,421 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 23:38:04,422 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 828b6f31ac8b338b9524f85315068e4bc72bfadb1d19ff8ea6318f966a3b277a [2024-11-08 23:38:04,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:38:04,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:38:04,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:38:04,689 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:38:04,689 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:38:04,690 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i [2024-11-08 23:38:06,201 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:38:06,405 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:38:06,406 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i [2024-11-08 23:38:06,414 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc81e138a/2331b827e94a4ef884fcb5e607977e14/FLAG554c6e20e [2024-11-08 23:38:06,426 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc81e138a/2331b827e94a4ef884fcb5e607977e14 [2024-11-08 23:38:06,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:38:06,432 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:38:06,433 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:38:06,433 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:38:06,439 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:38:06,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:38:06" (1/1) ... [2024-11-08 23:38:06,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@767b84c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:06, skipping insertion in model container [2024-11-08 23:38:06,441 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:38:06" (1/1) ... [2024-11-08 23:38:06,469 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:38:06,684 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_loopvsstraightlinecode_25-1loop_file-0.i[914,927] [2024-11-08 23:38:06,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:38:06,762 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:38:06,774 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_loopvsstraightlinecode_25-1loop_file-0.i[914,927] [2024-11-08 23:38:06,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:38:06,809 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:38:06,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:06 WrapperNode [2024-11-08 23:38:06,810 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:38:06,811 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:38:06,811 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:38:06,811 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:38:06,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:06" (1/1) ... [2024-11-08 23:38:06,824 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:06" (1/1) ... [2024-11-08 23:38:06,847 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2024-11-08 23:38:06,848 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:38:06,848 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:38:06,849 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:38:06,849 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:38:06,859 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:06" (1/1) ... [2024-11-08 23:38:06,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:06" (1/1) ... [2024-11-08 23:38:06,861 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:06" (1/1) ... [2024-11-08 23:38:06,872 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]. [2024-11-08 23:38:06,872 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:06" (1/1) ... [2024-11-08 23:38:06,873 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:06" (1/1) ... [2024-11-08 23:38:06,877 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:06" (1/1) ... [2024-11-08 23:38:06,880 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:06" (1/1) ... [2024-11-08 23:38:06,887 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:06" (1/1) ... [2024-11-08 23:38:06,889 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:06" (1/1) ... [2024-11-08 23:38:06,890 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:38:06,893 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:38:06,893 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:38:06,893 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:38:06,894 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:06" (1/1) ... [2024-11-08 23:38:06,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 23:38:06,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 23:38:06,934 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) [2024-11-08 23:38:06,937 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 [2024-11-08 23:38:06,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:38:06,984 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 23:38:06,985 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 23:38:06,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 23:38:06,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:38:06,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:38:07,062 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:38:07,063 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:38:07,247 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-08 23:38:07,248 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:38:07,259 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:38:07,259 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 23:38:07,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:38:07 BoogieIcfgContainer [2024-11-08 23:38:07,260 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:38:07,262 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 23:38:07,262 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 23:38:07,265 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 23:38:07,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:38:06" (1/3) ... [2024-11-08 23:38:07,266 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a321d48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:38:07, skipping insertion in model container [2024-11-08 23:38:07,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:06" (2/3) ... [2024-11-08 23:38:07,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a321d48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:38:07, skipping insertion in model container [2024-11-08 23:38:07,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:38:07" (3/3) ... [2024-11-08 23:38:07,269 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-0.i [2024-11-08 23:38:07,285 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 23:38:07,286 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 23:38:07,340 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 23:38:07,345 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;@11958e15, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 23:38:07,345 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 23:38:07,349 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 34 states have internal predecessors, (45), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 23:38:07,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 23:38:07,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:38:07,357 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:38:07,357 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:38:07,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:38:07,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1433725937, now seen corresponding path program 1 times [2024-11-08 23:38:07,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:38:07,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109002213] [2024-11-08 23:38:07,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:38:07,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:38:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:38:07,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:38:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:38:07,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:38:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:38:07,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:38:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:38:07,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 23:38:07,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:38:07,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 23:38:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:38:07,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 23:38:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:38:07,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 23:38:07,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:38:07,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 23:38:07,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:38:07,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 23:38:07,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:38:07,629 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 23:38:07,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:38:07,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109002213] [2024-11-08 23:38:07,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109002213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:38:07,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:38:07,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 23:38:07,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118677918] [2024-11-08 23:38:07,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:38:07,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 23:38:07,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:38:07,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 23:38:07,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 23:38:07,666 INFO L87 Difference]: Start difference. First operand has 45 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 34 states have internal predecessors, (45), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 23:38:07,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:38:07,689 INFO L93 Difference]: Finished difference Result 87 states and 132 transitions. [2024-11-08 23:38:07,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 23:38:07,691 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66 [2024-11-08 23:38:07,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:38:07,699 INFO L225 Difference]: With dead ends: 87 [2024-11-08 23:38:07,700 INFO L226 Difference]: Without dead ends: 41 [2024-11-08 23:38:07,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 23:38:07,706 INFO L432 NwaCegarLoop]: 60 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, 60 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 [2024-11-08 23:38:07,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 23:38:07,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-08 23:38:07,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-08 23:38:07,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 23:38:07,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 56 transitions. [2024-11-08 23:38:07,749 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 56 transitions. Word has length 66 [2024-11-08 23:38:07,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:38:07,750 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 56 transitions. [2024-11-08 23:38:07,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 23:38:07,750 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2024-11-08 23:38:07,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 23:38:07,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:38:07,755 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:38:07,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 23:38:07,757 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:38:07,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:38:07,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1065182093, now seen corresponding path program 1 times [2024-11-08 23:38:07,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:38:07,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544050523] [2024-11-08 23:38:07,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:38:07,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:38:07,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:38:07,897 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:38:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:38:07,990 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 23:38:07,991 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 23:38:07,993 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 23:38:07,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 23:38:07,998 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 23:38:08,060 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 23:38:08,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 11:38:08 BoogieIcfgContainer [2024-11-08 23:38:08,068 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 23:38:08,069 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:38:08,069 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:38:08,070 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:38:08,070 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:38:07" (3/4) ... [2024-11-08 23:38:08,073 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:38:08,075 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:38:08,076 INFO L158 Benchmark]: Toolchain (without parser) took 1644.24ms. Allocated memory is still 148.9MB. Free memory was 78.8MB in the beginning and 54.6MB in the end (delta: 24.2MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2024-11-08 23:38:08,076 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 115.3MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:38:08,077 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.20ms. Allocated memory is still 148.9MB. Free memory was 78.6MB in the beginning and 116.1MB in the end (delta: -37.5MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2024-11-08 23:38:08,078 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.05ms. Allocated memory is still 148.9MB. Free memory was 116.1MB in the beginning and 114.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:38:08,078 INFO L158 Benchmark]: Boogie Preprocessor took 42.25ms. Allocated memory is still 148.9MB. Free memory was 114.1MB in the beginning and 112.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:38:08,079 INFO L158 Benchmark]: RCFGBuilder took 366.89ms. Allocated memory is still 148.9MB. Free memory was 112.0MB in the beginning and 98.0MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 23:38:08,079 INFO L158 Benchmark]: TraceAbstraction took 806.36ms. Allocated memory is still 148.9MB. Free memory was 97.3MB in the beginning and 54.7MB in the end (delta: 42.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-08 23:38:08,079 INFO L158 Benchmark]: Witness Printer took 6.12ms. Allocated memory is still 148.9MB. Free memory was 54.7MB in the beginning and 54.6MB in the end (delta: 146.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:38:08,084 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 115.3MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.20ms. Allocated memory is still 148.9MB. Free memory was 78.6MB in the beginning and 116.1MB in the end (delta: -37.5MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.05ms. Allocated memory is still 148.9MB. Free memory was 116.1MB in the beginning and 114.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.25ms. Allocated memory is still 148.9MB. Free memory was 114.1MB in the beginning and 112.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 366.89ms. Allocated memory is still 148.9MB. Free memory was 112.0MB in the beginning and 98.0MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 806.36ms. Allocated memory is still 148.9MB. Free memory was 97.3MB in the beginning and 54.7MB in the end (delta: 42.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 6.12ms. Allocated memory is still 148.9MB. Free memory was 54.7MB in the beginning and 54.6MB in the end (delta: 146.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 82, overapproximation of someBinaryFLOATComparisonOperation at line 82, overapproximation of someBinaryArithmeticDOUBLEoperation at line 36. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 25.8; [L23] unsigned char var_1_2 = 1; [L24] double var_1_3 = 128.2; [L25] double var_1_4 = 15.4; [L26] double var_1_5 = 5.25; [L27] unsigned char var_1_6 = 0; [L28] float var_1_7 = 8.125; [L29] float var_1_8 = 0.4; [L30] float var_1_9 = 499.4; [L31] float var_1_10 = 63.16; VAL [isInitial=0, var_1_10=1579/25, var_1_1=129/5, var_1_2=1, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L86] isInitial = 1 [L87] FCALL initially() [L88] int k_loop; [L89] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=1579/25, var_1_1=129/5, var_1_2=1, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L89] COND TRUE k_loop < 1 [L90] FCALL updateLastVariables() [L91] CALL updateVariables() [L62] var_1_2 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L63] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L64] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L64] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L65] var_1_3 = __VERIFIER_nondet_double() [L66] CALL assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L66] RET assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L67] var_1_4 = __VERIFIER_nondet_double() [L68] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L68] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L69] var_1_6 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L70] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L71] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L71] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L72] var_1_8 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_9=2497/5] [L73] RET assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_9=2497/5] [L74] var_1_9 = __VERIFIER_nondet_float() [L75] CALL assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L75] RET assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L76] var_1_10 = __VERIFIER_nondet_float() [L77] CALL assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L77] RET assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L91] RET updateVariables() [L92] CALL step() [L35] COND TRUE ! var_1_2 [L36] var_1_1 = (var_1_3 - var_1_4) VAL [isInitial=1, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L40] unsigned char stepLocal_0 = var_1_4 < var_1_3; VAL [isInitial=1, stepLocal_0=0, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L41] COND FALSE !(stepLocal_0 || var_1_2) VAL [isInitial=1, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L48] unsigned char stepLocal_1 = var_1_1 <= (var_1_1 + var_1_3); VAL [isInitial=1, stepLocal_1=1, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L49] COND TRUE var_1_2 || stepLocal_1 [L50] var_1_7 = ((((5.5f) < (((((128.4f) > (var_1_3)) ? (128.4f) : (var_1_3))))) ? (5.5f) : (((((128.4f) > (var_1_3)) ? (128.4f) : (var_1_3)))))) VAL [isInitial=1, var_1_2=0, var_1_3=642/5, var_1_5=21/4, var_1_6=1, var_1_7=642/5] [L92] RET step() [L93] CALL, EXPR property() [L82-L83] return (((! var_1_2) ? (var_1_1 == ((double) (var_1_3 - var_1_4))) : (var_1_1 == ((double) ((((16.2) < (var_1_3)) ? (16.2) : (var_1_3)))))) && (((var_1_4 < var_1_3) || var_1_2) ? (var_1_2 ? (var_1_6 ? (var_1_5 == ((double) var_1_3)) : 1) : 1) : 1)) && ((var_1_2 || (var_1_1 <= (var_1_1 + var_1_3))) ? (var_1_7 == ((float) ((((5.5f) < (((((128.4f) > (var_1_3)) ? (128.4f) : (var_1_3))))) ? (5.5f) : (((((128.4f) > (var_1_3)) ? (128.4f) : (var_1_3)))))))) : (var_1_6 ? (var_1_7 == ((float) ((var_1_8 - var_1_9) + var_1_10))) : (var_1_2 ? (var_1_7 == ((float) var_1_9)) : 1))) ; VAL [\result=0, isInitial=1, var_1_2=0, var_1_3=642/5, var_1_5=21/4, var_1_6=1, var_1_7=642/5] [L93] RET, EXPR property() [L93] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_2=0, var_1_3=642/5, var_1_5=21/4, var_1_6=1, var_1_7=642/5] [L19] reach_error() VAL [isInitial=1, var_1_2=0, var_1_3=642/5, var_1_5=21/4, var_1_6=1, var_1_7=642/5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 60 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 65 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 144/144 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 23:38:08,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_loopvsstraightlinecode_25-1loop_file-0.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 828b6f31ac8b338b9524f85315068e4bc72bfadb1d19ff8ea6318f966a3b277a --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 23:38:10,374 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:38:10,454 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 23:38:10,462 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:38:10,464 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 23:38:10,502 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:38:10,505 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 23:38:10,507 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 23:38:10,508 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 23:38:10,508 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 23:38:10,508 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:38:10,509 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 23:38:10,509 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:38:10,509 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:38:10,510 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 23:38:10,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:38:10,513 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:38:10,516 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:38:10,516 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:38:10,516 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:38:10,517 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:38:10,517 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:38:10,517 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:38:10,518 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 23:38:10,518 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 23:38:10,518 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:38:10,519 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 23:38:10,519 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:38:10,519 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:38:10,520 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:38:10,520 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:38:10,520 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 23:38:10,521 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 23:38:10,521 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 23:38:10,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 23:38:10,521 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:38:10,522 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:38:10,522 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:38:10,522 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-08 23:38:10,522 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:38:10,523 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 23:38:10,525 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 23:38:10,525 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 23:38:10,525 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 23:38:10,526 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 828b6f31ac8b338b9524f85315068e4bc72bfadb1d19ff8ea6318f966a3b277a [2024-11-08 23:38:10,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:38:10,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:38:10,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:38:10,881 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:38:10,882 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:38:10,883 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i [2024-11-08 23:38:12,560 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:38:12,815 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:38:12,816 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i [2024-11-08 23:38:12,831 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5130d856/7a012c4e4e8e4ab8922a6ed3fcff6ee0/FLAG62de1614a [2024-11-08 23:38:12,851 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5130d856/7a012c4e4e8e4ab8922a6ed3fcff6ee0 [2024-11-08 23:38:12,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:38:12,856 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:38:12,857 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:38:12,860 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:38:12,865 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:38:12,866 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:38:12" (1/1) ... [2024-11-08 23:38:12,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20eadcb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:12, skipping insertion in model container [2024-11-08 23:38:12,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:38:12" (1/1) ... [2024-11-08 23:38:12,896 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:38:13,099 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_loopvsstraightlinecode_25-1loop_file-0.i[914,927] [2024-11-08 23:38:13,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:38:13,179 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:38:13,194 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_loopvsstraightlinecode_25-1loop_file-0.i[914,927] [2024-11-08 23:38:13,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:38:13,234 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:38:13,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:13 WrapperNode [2024-11-08 23:38:13,235 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:38:13,236 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:38:13,236 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:38:13,236 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:38:13,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:13" (1/1) ... [2024-11-08 23:38:13,260 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:13" (1/1) ... [2024-11-08 23:38:13,294 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2024-11-08 23:38:13,294 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:38:13,299 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:38:13,299 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:38:13,299 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:38:13,311 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:13" (1/1) ... [2024-11-08 23:38:13,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:13" (1/1) ... [2024-11-08 23:38:13,315 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:13" (1/1) ... [2024-11-08 23:38:13,335 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]. [2024-11-08 23:38:13,336 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:13" (1/1) ... [2024-11-08 23:38:13,336 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:13" (1/1) ... [2024-11-08 23:38:13,342 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:13" (1/1) ... [2024-11-08 23:38:13,345 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:13" (1/1) ... [2024-11-08 23:38:13,348 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:13" (1/1) ... [2024-11-08 23:38:13,349 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:13" (1/1) ... [2024-11-08 23:38:13,352 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:38:13,353 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:38:13,353 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:38:13,354 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:38:13,354 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:13" (1/1) ... [2024-11-08 23:38:13,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 23:38:13,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 23:38:13,398 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) [2024-11-08 23:38:13,405 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 [2024-11-08 23:38:13,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:38:13,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 23:38:13,452 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 23:38:13,452 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 23:38:13,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:38:13,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:38:13,557 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:38:13,560 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:38:15,948 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-08 23:38:15,948 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:38:15,963 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:38:15,963 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 23:38:15,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:38:15 BoogieIcfgContainer [2024-11-08 23:38:15,964 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:38:15,966 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 23:38:15,966 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 23:38:15,970 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 23:38:15,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:38:12" (1/3) ... [2024-11-08 23:38:15,971 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cfa951c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:38:15, skipping insertion in model container [2024-11-08 23:38:15,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:13" (2/3) ... [2024-11-08 23:38:15,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cfa951c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:38:15, skipping insertion in model container [2024-11-08 23:38:15,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:38:15" (3/3) ... [2024-11-08 23:38:15,974 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-0.i [2024-11-08 23:38:15,993 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 23:38:15,994 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 23:38:16,062 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 23:38:16,069 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;@f5cacdf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 23:38:16,070 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 23:38:16,074 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 34 states have internal predecessors, (45), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 23:38:16,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 23:38:16,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:38:16,088 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:38:16,089 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:38:16,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:38:16,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1433725937, now seen corresponding path program 1 times [2024-11-08 23:38:16,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 23:38:16,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385313129] [2024-11-08 23:38:16,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:38:16,110 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 23:38:16,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 23:38:16,114 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 23:38:16,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-08 23:38:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:38:16,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 23:38:16,628 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:38:16,667 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-08 23:38:16,668 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 23:38:16,669 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 23:38:16,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385313129] [2024-11-08 23:38:16,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385313129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:38:16,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:38:16,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 23:38:16,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544742255] [2024-11-08 23:38:16,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:38:16,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 23:38:16,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 23:38:16,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 23:38:16,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 23:38:16,708 INFO L87 Difference]: Start difference. First operand has 45 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 34 states have internal predecessors, (45), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 23:38:16,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:38:16,738 INFO L93 Difference]: Finished difference Result 87 states and 132 transitions. [2024-11-08 23:38:16,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 23:38:16,741 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66 [2024-11-08 23:38:16,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:38:16,750 INFO L225 Difference]: With dead ends: 87 [2024-11-08 23:38:16,751 INFO L226 Difference]: Without dead ends: 41 [2024-11-08 23:38:16,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 23:38:16,761 INFO L432 NwaCegarLoop]: 60 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, 60 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 [2024-11-08 23:38:16,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 23:38:16,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-08 23:38:16,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-08 23:38:16,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 23:38:16,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 56 transitions. [2024-11-08 23:38:16,803 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 56 transitions. Word has length 66 [2024-11-08 23:38:16,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:38:16,805 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 56 transitions. [2024-11-08 23:38:16,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 23:38:16,805 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2024-11-08 23:38:16,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 23:38:16,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:38:16,809 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:38:16,826 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-08 23:38:17,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 23:38:17,014 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:38:17,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:38:17,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1065182093, now seen corresponding path program 1 times [2024-11-08 23:38:17,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 23:38:17,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1297752020] [2024-11-08 23:38:17,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:38:17,016 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 23:38:17,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 23:38:17,020 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 23:38:17,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-08 23:38:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:38:17,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 23:38:17,431 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:38:34,974 WARN L286 SmtUtils]: Spent 5.32s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 23:38:50,512 WARN L286 SmtUtils]: Spent 7.39s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 23:39:03,367 WARN L286 SmtUtils]: Spent 6.18s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)