./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-99.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-99.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 3f85399f13cd3660b524b9ee202c819bd1459b0c883e7c0e4ddb7463b5e0cc2f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 11:41:52,705 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 11:41:52,781 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 11:41:52,785 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 11:41:52,786 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 11:41:52,809 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 11:41:52,809 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 11:41:52,810 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 11:41:52,811 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 11:41:52,812 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 11:41:52,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 11:41:52,813 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 11:41:52,813 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 11:41:52,813 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 11:41:52,814 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 11:41:52,815 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 11:41:52,816 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 11:41:52,816 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 11:41:52,816 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 11:41:52,820 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 11:41:52,820 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 11:41:52,821 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 11:41:52,821 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 11:41:52,821 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 11:41:52,822 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 11:41:52,822 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 11:41:52,822 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 11:41:52,822 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 11:41:52,823 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 11:41:52,823 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 11:41:52,824 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 11:41:52,824 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 11:41:52,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:41:52,825 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 11:41:52,825 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 11:41:52,825 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 11:41:52,826 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 11:41:52,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 11:41:52,826 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 11:41:52,826 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 11:41:52,826 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 11:41:52,827 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 11:41:52,827 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f85399f13cd3660b524b9ee202c819bd1459b0c883e7c0e4ddb7463b5e0cc2f [2024-10-14 11:41:53,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 11:41:53,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 11:41:53,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 11:41:53,108 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 11:41:53,108 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 11:41:53,109 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-99.i [2024-10-14 11:41:54,524 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 11:41:54,736 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 11:41:54,737 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-99.i [2024-10-14 11:41:54,747 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b201e9149/b15214e0261040348f5af5e94f0e60aa/FLAG5d83c0a33 [2024-10-14 11:41:54,762 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b201e9149/b15214e0261040348f5af5e94f0e60aa [2024-10-14 11:41:54,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 11:41:54,765 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 11:41:54,766 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 11:41:54,766 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 11:41:54,770 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 11:41:54,771 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:41:54" (1/1) ... [2024-10-14 11:41:54,771 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b573335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:54, skipping insertion in model container [2024-10-14 11:41:54,772 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:41:54" (1/1) ... [2024-10-14 11:41:54,792 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 11:41:54,930 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-99.i[915,928] [2024-10-14 11:41:54,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:41:54,979 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 11:41:54,992 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-99.i[915,928] [2024-10-14 11:41:55,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:41:55,035 INFO L204 MainTranslator]: Completed translation [2024-10-14 11:41:55,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:55 WrapperNode [2024-10-14 11:41:55,039 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 11:41:55,041 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 11:41:55,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 11:41:55,042 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 11:41:55,048 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:55" (1/1) ... [2024-10-14 11:41:55,058 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:55" (1/1) ... [2024-10-14 11:41:55,080 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91 [2024-10-14 11:41:55,081 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 11:41:55,082 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 11:41:55,082 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 11:41:55,082 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 11:41:55,094 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:55" (1/1) ... [2024-10-14 11:41:55,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:55" (1/1) ... [2024-10-14 11:41:55,100 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:55" (1/1) ... [2024-10-14 11:41:55,116 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 11:41:55,120 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:55" (1/1) ... [2024-10-14 11:41:55,121 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:55" (1/1) ... [2024-10-14 11:41:55,130 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:55" (1/1) ... [2024-10-14 11:41:55,133 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:55" (1/1) ... [2024-10-14 11:41:55,136 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:55" (1/1) ... [2024-10-14 11:41:55,138 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:55" (1/1) ... [2024-10-14 11:41:55,143 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 11:41:55,144 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 11:41:55,144 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 11:41:55,144 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 11:41:55,145 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:55" (1/1) ... [2024-10-14 11:41:55,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:41:55,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:41:55,187 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) [2024-10-14 11:41:55,194 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 [2024-10-14 11:41:55,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 11:41:55,234 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 11:41:55,234 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 11:41:55,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 11:41:55,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 11:41:55,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 11:41:55,295 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 11:41:55,297 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 11:41:55,462 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-10-14 11:41:55,462 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 11:41:55,503 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 11:41:55,504 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 11:41:55,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:41:55 BoogieIcfgContainer [2024-10-14 11:41:55,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 11:41:55,508 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 11:41:55,508 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 11:41:55,512 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 11:41:55,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:41:54" (1/3) ... [2024-10-14 11:41:55,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48537911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:41:55, skipping insertion in model container [2024-10-14 11:41:55,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:55" (2/3) ... [2024-10-14 11:41:55,513 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48537911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:41:55, skipping insertion in model container [2024-10-14 11:41:55,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:41:55" (3/3) ... [2024-10-14 11:41:55,514 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-99.i [2024-10-14 11:41:55,528 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 11:41:55,528 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 11:41:55,579 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 11:41:55,585 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;@6255f6fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 11:41:55,586 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 11:41:55,589 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 23 states have internal predecessors, (32), 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) [2024-10-14 11:41:55,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-14 11:41:55,598 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:41:55,599 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] [2024-10-14 11:41:55,602 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:41:55,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:41:55,608 INFO L85 PathProgramCache]: Analyzing trace with hash 682830900, now seen corresponding path program 1 times [2024-10-14 11:41:55,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:41:55,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759459373] [2024-10-14 11:41:55,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:41:55,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:41:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:41:55,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:41:55,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:41:55,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:41:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:41:55,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:41:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:41:55,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 11:41:55,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:41:55,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 11:41:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:41:55,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 11:41:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:41:55,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 11:41:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:41:55,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 11:41:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:41:55,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 11:41:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:41:55,931 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-10-14 11:41:55,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:41:55,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759459373] [2024-10-14 11:41:55,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759459373] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:41:55,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:41:55,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 11:41:55,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684166893] [2024-10-14 11:41:55,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:41:55,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 11:41:55,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:41:55,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 11:41:55,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 11:41:55,970 INFO L87 Difference]: Start difference. First operand has 34 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 23 states have internal predecessors, (32), 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 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2024-10-14 11:41:56,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:41:56,017 INFO L93 Difference]: Finished difference Result 67 states and 108 transitions. [2024-10-14 11:41:56,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 11:41:56,020 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 61 [2024-10-14 11:41:56,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:41:56,027 INFO L225 Difference]: With dead ends: 67 [2024-10-14 11:41:56,028 INFO L226 Difference]: Without dead ends: 32 [2024-10-14 11:41:56,030 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 [2024-10-14 11:41:56,033 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 11:41:56,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 11:41:56,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-10-14 11:41:56,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-10-14 11:41:56,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 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) [2024-10-14 11:41:56,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 45 transitions. [2024-10-14 11:41:56,077 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 45 transitions. Word has length 61 [2024-10-14 11:41:56,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:41:56,078 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 45 transitions. [2024-10-14 11:41:56,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2024-10-14 11:41:56,079 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 45 transitions. [2024-10-14 11:41:56,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-14 11:41:56,081 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:41:56,082 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] [2024-10-14 11:41:56,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 11:41:56,083 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:41:56,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:41:56,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1183948138, now seen corresponding path program 1 times [2024-10-14 11:41:56,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:41:56,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230283043] [2024-10-14 11:41:56,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:41:56,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:41:56,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 11:41:56,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 11:41:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 11:41:56,271 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 11:41:56,272 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 11:41:56,274 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-14 11:41:56,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 11:41:56,279 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-14 11:41:56,332 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 11:41:56,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:41:56 BoogieIcfgContainer [2024-10-14 11:41:56,337 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 11:41:56,338 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 11:41:56,338 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 11:41:56,338 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 11:41:56,338 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:41:55" (3/4) ... [2024-10-14 11:41:56,342 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-14 11:41:56,343 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 11:41:56,344 INFO L158 Benchmark]: Toolchain (without parser) took 1578.89ms. Allocated memory is still 188.7MB. Free memory was 158.7MB in the beginning and 156.6MB in the end (delta: 2.1MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2024-10-14 11:41:56,344 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 125.8MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 11:41:56,344 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.39ms. Allocated memory is still 188.7MB. Free memory was 158.7MB in the beginning and 145.0MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-14 11:41:56,345 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.30ms. Allocated memory is still 188.7MB. Free memory was 145.0MB in the beginning and 144.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 11:41:56,345 INFO L158 Benchmark]: Boogie Preprocessor took 61.42ms. Allocated memory is still 188.7MB. Free memory was 142.9MB in the beginning and 140.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 11:41:56,347 INFO L158 Benchmark]: RCFGBuilder took 360.62ms. Allocated memory is still 188.7MB. Free memory was 140.8MB in the beginning and 125.1MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-14 11:41:56,348 INFO L158 Benchmark]: TraceAbstraction took 828.63ms. Allocated memory is still 188.7MB. Free memory was 124.1MB in the beginning and 156.6MB in the end (delta: -32.5MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. [2024-10-14 11:41:56,348 INFO L158 Benchmark]: Witness Printer took 5.46ms. Allocated memory is still 188.7MB. Free memory is still 156.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 11:41:56,350 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 125.8MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.39ms. Allocated memory is still 188.7MB. Free memory was 158.7MB in the beginning and 145.0MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.30ms. Allocated memory is still 188.7MB. Free memory was 145.0MB in the beginning and 144.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 61.42ms. Allocated memory is still 188.7MB. Free memory was 142.9MB in the beginning and 140.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 360.62ms. Allocated memory is still 188.7MB. Free memory was 140.8MB in the beginning and 125.1MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 828.63ms. Allocated memory is still 188.7MB. Free memory was 124.1MB in the beginning and 156.6MB in the end (delta: -32.5MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. * Witness Printer took 5.46ms. Allocated memory is still 188.7MB. Free memory is still 156.6MB. 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 someBinaryFLOATComparisonOperation at line 75, overapproximation of someUnaryDOUBLEoperation at line 43, overapproximation of someBinaryArithmeticDOUBLEoperation at line 43, overapproximation of someBinaryDOUBLEComparisonOperation at line 75, overapproximation of someBinaryArithmeticFLOAToperation at line 38. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 255.5; [L23] unsigned char var_1_2 = 16; [L24] float var_1_4 = 1000000000000000.6; [L25] float var_1_5 = 500.5; [L26] float var_1_6 = 99999999999.5; [L27] double var_1_7 = 9.6; [L28] double var_1_8 = -0.2; [L29] double var_1_9 = 25.2; [L30] signed short int var_1_10 = 1; [L31] unsigned char var_1_11 = 0; [L32] signed long int var_1_15 = -64; [L79] isInitial = 1 [L80] FCALL initially() [L81] int k_loop; [L82] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=16, var_1_4=5000000000000003/5, var_1_5=1001/2, var_1_6=199999999999/2, var_1_7=48/5, var_1_9=126/5] [L82] COND TRUE k_loop < 1 [L83] FCALL updateLastVariables() [L84] CALL updateVariables() [L55] var_1_2 = __VERIFIER_nondet_uchar() [L56] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_4=5000000000000003/5, var_1_5=1001/2, var_1_6=199999999999/2, var_1_7=48/5, var_1_9=126/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_4=5000000000000003/5, var_1_5=1001/2, var_1_6=199999999999/2, var_1_7=48/5, var_1_9=126/5] [L56] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_4=5000000000000003/5, var_1_5=1001/2, var_1_6=199999999999/2, var_1_7=48/5, var_1_9=126/5] [L57] CALL assume_abort_if_not(var_1_2 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_4=5000000000000003/5, var_1_5=1001/2, var_1_6=199999999999/2, var_1_7=48/5, var_1_9=126/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_4=5000000000000003/5, var_1_5=1001/2, var_1_6=199999999999/2, var_1_7=48/5, var_1_9=126/5] [L57] RET assume_abort_if_not(var_1_2 <= 127) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_4=5000000000000003/5, var_1_5=1001/2, var_1_6=199999999999/2, var_1_7=48/5, var_1_9=126/5] [L58] var_1_4 = __VERIFIER_nondet_float() [L59] 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=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_5=1001/2, var_1_6=199999999999/2, var_1_7=48/5, var_1_9=126/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_5=1001/2, var_1_6=199999999999/2, var_1_7=48/5, var_1_9=126/5] [L59] 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=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_5=1001/2, var_1_6=199999999999/2, var_1_7=48/5, var_1_9=126/5] [L60] var_1_5 = __VERIFIER_nondet_float() [L61] CALL assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_6=199999999999/2, var_1_7=48/5, var_1_9=126/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_6=199999999999/2, var_1_7=48/5, var_1_9=126/5] [L61] RET assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_6=199999999999/2, var_1_7=48/5, var_1_9=126/5] [L62] var_1_6 = __VERIFIER_nondet_float() [L63] CALL assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_7=48/5, var_1_9=126/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_7=48/5, var_1_9=126/5] [L63] RET assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_7=48/5, var_1_9=126/5] [L64] var_1_8 = __VERIFIER_nondet_double() [L65] CALL assume_abort_if_not((var_1_8 >= -461168.6018427382800e+13F && 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=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_7=48/5, var_1_9=126/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_7=48/5, var_1_9=126/5] [L65] RET assume_abort_if_not((var_1_8 >= -461168.6018427382800e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_7=48/5, var_1_9=126/5] [L66] var_1_9 = __VERIFIER_nondet_double() [L67] CALL assume_abort_if_not((var_1_9 >= -461168.6018427382800e+13F && 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=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_7=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_7=48/5] [L67] RET assume_abort_if_not((var_1_9 >= -461168.6018427382800e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_7=48/5] [L68] var_1_11 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_7=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_7=48/5] [L69] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=1, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_7=48/5] [L70] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_7=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_7=48/5] [L70] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, var_1_10=1, var_1_11=1, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_7=48/5] [L84] RET updateVariables() [L85] CALL step() [L36] signed long int stepLocal_0 = (((8) < 0 ) ? -(8) : (8)); VAL [isInitial=1, stepLocal_0=8, var_1_10=1, var_1_11=1, var_1_15=-64, var_1_1=511/2, var_1_2=119, var_1_7=48/5] [L37] COND TRUE (((((200) < (128)) ? (200) : (128))) - var_1_2) > stepLocal_0 [L38] var_1_1 = (((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) - var_1_6) VAL [isInitial=1, var_1_10=1, var_1_11=1, var_1_15=-64, var_1_2=119, var_1_7=48/5] [L42] COND TRUE var_1_5 >= (var_1_4 + var_1_6) [L43] var_1_7 = ((((var_1_8 + var_1_9) < 0 ) ? -(var_1_8 + var_1_9) : (var_1_8 + var_1_9))) VAL [isInitial=1, var_1_10=1, var_1_11=1, var_1_15=-64, var_1_2=119, var_1_7=1000000000000005] [L45] COND FALSE !(((var_1_6 - var_1_4) + var_1_7) >= var_1_5) VAL [isInitial=1, var_1_10=1, var_1_11=1, var_1_15=-64, var_1_2=119, var_1_7=1000000000000005] [L50] COND TRUE ((var_1_2 + var_1_15) + var_1_15) >= var_1_15 [L51] var_1_10 = var_1_2 VAL [isInitial=1, var_1_10=119, var_1_11=1, var_1_15=-64, var_1_2=119, var_1_7=1000000000000005] [L85] RET step() [L86] CALL, EXPR property() [L75-L76] return (((((((((200) < (128)) ? (200) : (128))) - var_1_2) > ((((8) < 0 ) ? -(8) : (8)))) ? (var_1_1 == ((float) (((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) - var_1_6))) : (var_1_1 == ((float) var_1_6))) && ((var_1_5 >= (var_1_4 + var_1_6)) ? (var_1_7 == ((double) ((((var_1_8 + var_1_9) < 0 ) ? -(var_1_8 + var_1_9) : (var_1_8 + var_1_9))))) : 1)) && ((((var_1_2 + var_1_15) + var_1_15) >= var_1_15) ? (var_1_10 == ((signed short int) var_1_2)) : 1)) && ((((var_1_6 - var_1_4) + var_1_7) >= var_1_5) ? (var_1_11 ? (var_1_15 == ((signed long int) 100)) : 1) : 1) ; [L86] RET, EXPR property() [L86] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=119, var_1_11=1, var_1_15=-64, var_1_2=119, var_1_7=1000000000000005] [L19] reach_error() VAL [isInitial=1, var_1_10=119, var_1_11=1, var_1_15=-64, var_1_2=119, var_1_7=1000000000000005] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 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, 42 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 42 mSDtfsCounter, 5 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=34occurred 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, 0.2s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 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 [2024-10-14 11:41:56,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-99.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 3f85399f13cd3660b524b9ee202c819bd1459b0c883e7c0e4ddb7463b5e0cc2f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 11:41:58,528 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 11:41:58,606 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-14 11:41:58,615 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 11:41:58,616 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 11:41:58,657 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 11:41:58,657 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 11:41:58,658 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 11:41:58,658 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 11:41:58,659 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 11:41:58,659 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 11:41:58,659 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 11:41:58,661 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 11:41:58,661 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 11:41:58,663 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 11:41:58,663 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 11:41:58,664 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 11:41:58,664 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 11:41:58,664 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 11:41:58,668 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 11:41:58,669 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 11:41:58,669 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 11:41:58,669 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 11:41:58,670 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 11:41:58,671 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-14 11:41:58,671 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 11:41:58,671 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-14 11:41:58,671 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 11:41:58,672 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 11:41:58,672 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 11:41:58,672 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 11:41:58,673 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 11:41:58,673 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 11:41:58,674 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 11:41:58,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:41:58,674 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 11:41:58,675 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 11:41:58,675 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 11:41:58,675 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-14 11:41:58,676 INFO L153 SettingsManager]: * Command for external solver=cvc5 --incremental --print-success --lang smt [2024-10-14 11:41:58,676 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 11:41:58,676 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 11:41:58,676 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 11:41:58,677 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 11:41:58,677 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-14 11:41:58,677 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f85399f13cd3660b524b9ee202c819bd1459b0c883e7c0e4ddb7463b5e0cc2f [2024-10-14 11:41:59,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 11:41:59,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 11:41:59,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 11:41:59,053 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 11:41:59,053 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 11:41:59,055 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-99.i [2024-10-14 11:42:00,456 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 11:42:00,656 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 11:42:00,657 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-99.i [2024-10-14 11:42:00,671 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1071cc22a/1361d75960a44e38b802697482647ab8/FLAG10b0fcd2a [2024-10-14 11:42:01,028 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1071cc22a/1361d75960a44e38b802697482647ab8 [2024-10-14 11:42:01,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 11:42:01,030 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 11:42:01,032 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 11:42:01,032 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 11:42:01,040 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 11:42:01,041 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:42:01" (1/1) ... [2024-10-14 11:42:01,041 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fe17b97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:42:01, skipping insertion in model container [2024-10-14 11:42:01,042 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:42:01" (1/1) ... [2024-10-14 11:42:01,068 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 11:42:01,229 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-99.i[915,928] [2024-10-14 11:42:01,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:42:01,306 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 11:42:01,319 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-99.i[915,928] [2024-10-14 11:42:01,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:42:01,368 INFO L204 MainTranslator]: Completed translation [2024-10-14 11:42:01,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:42:01 WrapperNode [2024-10-14 11:42:01,369 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 11:42:01,370 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 11:42:01,370 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 11:42:01,370 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 11:42:01,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:42:01" (1/1) ... [2024-10-14 11:42:01,387 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:42:01" (1/1) ... [2024-10-14 11:42:01,421 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91 [2024-10-14 11:42:01,425 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 11:42:01,426 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 11:42:01,426 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 11:42:01,426 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 11:42:01,437 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:42:01" (1/1) ... [2024-10-14 11:42:01,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:42:01" (1/1) ... [2024-10-14 11:42:01,445 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:42:01" (1/1) ... [2024-10-14 11:42:01,456 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 11:42:01,460 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:42:01" (1/1) ... [2024-10-14 11:42:01,460 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:42:01" (1/1) ... [2024-10-14 11:42:01,471 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:42:01" (1/1) ... [2024-10-14 11:42:01,478 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:42:01" (1/1) ... [2024-10-14 11:42:01,480 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:42:01" (1/1) ... [2024-10-14 11:42:01,482 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:42:01" (1/1) ... [2024-10-14 11:42:01,488 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 11:42:01,489 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 11:42:01,489 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 11:42:01,489 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 11:42:01,490 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:42:01" (1/1) ... [2024-10-14 11:42:01,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:42:01,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:42:01,521 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) [2024-10-14 11:42:01,524 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 [2024-10-14 11:42:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 11:42:01,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-14 11:42:01,568 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 11:42:01,568 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 11:42:01,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 11:42:01,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 11:42:01,640 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 11:42:01,642 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 11:42:08,399 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-10-14 11:42:08,400 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 11:42:08,448 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 11:42:08,450 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 11:42:08,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:42:08 BoogieIcfgContainer [2024-10-14 11:42:08,451 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 11:42:08,453 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 11:42:08,453 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 11:42:08,457 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 11:42:08,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:42:01" (1/3) ... [2024-10-14 11:42:08,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2487efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:42:08, skipping insertion in model container [2024-10-14 11:42:08,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:42:01" (2/3) ... [2024-10-14 11:42:08,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2487efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:42:08, skipping insertion in model container [2024-10-14 11:42:08,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:42:08" (3/3) ... [2024-10-14 11:42:08,460 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-99.i [2024-10-14 11:42:08,475 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 11:42:08,475 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 11:42:08,540 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 11:42:08,549 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;@134a6d55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 11:42:08,549 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 11:42:08,554 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 23 states have internal predecessors, (32), 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) [2024-10-14 11:42:08,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-14 11:42:08,563 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:42:08,564 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] [2024-10-14 11:42:08,564 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:42:08,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:42:08,570 INFO L85 PathProgramCache]: Analyzing trace with hash 682830900, now seen corresponding path program 1 times [2024-10-14 11:42:08,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 11:42:08,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136867819] [2024-10-14 11:42:08,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:42:08,587 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 [2024-10-14 11:42:08,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 11:42:08,591 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) [2024-10-14 11:42:08,592 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 [2024-10-14 11:42:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:42:08,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-14 11:42:08,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 11:42:08,978 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-10-14 11:42:08,978 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 11:42:08,979 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 11:42:08,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136867819] [2024-10-14 11:42:08,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2136867819] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:42:08,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:42:08,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 11:42:08,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911312372] [2024-10-14 11:42:08,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:42:08,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 11:42:08,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 11:42:09,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 11:42:09,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 11:42:09,008 INFO L87 Difference]: Start difference. First operand has 34 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 23 states have internal predecessors, (32), 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 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-14 11:42:12,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.53s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 11:42:12,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:42:12,616 INFO L93 Difference]: Finished difference Result 67 states and 108 transitions. [2024-10-14 11:42:12,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 11:42:12,618 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (9), 2 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 61 [2024-10-14 11:42:12,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:42:12,625 INFO L225 Difference]: With dead ends: 67 [2024-10-14 11:42:12,626 INFO L226 Difference]: Without dead ends: 32 [2024-10-14 11:42:12,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 11:42:12,631 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-10-14 11:42:12,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-10-14 11:42:12,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-10-14 11:42:12,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-10-14 11:42:12,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 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) [2024-10-14 11:42:12,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 45 transitions. [2024-10-14 11:42:12,664 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 45 transitions. Word has length 61 [2024-10-14 11:42:12,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:42:12,666 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 45 transitions. [2024-10-14 11:42:12,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-14 11:42:12,666 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 45 transitions. [2024-10-14 11:42:12,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-14 11:42:12,669 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:42:12,669 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] [2024-10-14 11:42:12,681 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 [2024-10-14 11:42:12,869 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 [2024-10-14 11:42:12,870 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:42:12,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:42:12,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1183948138, now seen corresponding path program 1 times [2024-10-14 11:42:12,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 11:42:12,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1089648242] [2024-10-14 11:42:12,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:42:12,872 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 [2024-10-14 11:42:12,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 11:42:12,875 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) [2024-10-14 11:42:12,876 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 [2024-10-14 11:42:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:42:13,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-14 11:42:13,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 11:43:00,571 WARN L286 SmtUtils]: Spent 11.64s on a formula simplification that was a NOOP. DAG size: 74 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-14 11:43:07,650 WARN L286 SmtUtils]: Spent 7.06s 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) [2024-10-14 11:43:15,726 WARN L286 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-14 11:43:23,838 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)