./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_50-1loop_file-70.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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_50-1loop_file-70.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 13cde4b32ba56cbf3417fbd3d3edc8641f523883922a409d107d73798b0beac0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 09:51:37,904 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 09:51:37,960 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 09:51:37,964 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 09:51:37,964 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 09:51:37,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 09:51:37,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 09:51:37,992 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 09:51:37,992 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 09:51:37,993 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 09:51:37,994 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 09:51:37,994 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 09:51:37,995 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 09:51:37,996 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 09:51:37,996 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 09:51:37,997 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 09:51:37,997 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 09:51:37,997 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 09:51:37,999 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 09:51:37,999 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 09:51:38,000 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 09:51:38,000 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 09:51:38,000 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 09:51:38,000 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 09:51:38,001 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 09:51:38,001 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 09:51:38,001 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 09:51:38,001 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 09:51:38,001 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 09:51:38,002 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 09:51:38,002 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 09:51:38,002 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 09:51:38,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 09:51:38,002 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 09:51:38,002 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 09:51:38,003 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 09:51:38,003 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 09:51:38,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 09:51:38,003 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 09:51:38,003 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 09:51:38,003 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 09:51:38,004 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 09:51:38,004 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13cde4b32ba56cbf3417fbd3d3edc8641f523883922a409d107d73798b0beac0 [2024-10-24 09:51:38,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 09:51:38,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 09:51:38,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 09:51:38,325 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 09:51:38,329 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 09:51:38,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-70.i [2024-10-24 09:51:39,736 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 09:51:39,909 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 09:51:39,910 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-70.i [2024-10-24 09:51:39,920 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4add8fca8/f1c2bfb6aff14e368b44ee2063cc39c8/FLAG81b6918b6 [2024-10-24 09:51:39,936 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4add8fca8/f1c2bfb6aff14e368b44ee2063cc39c8 [2024-10-24 09:51:39,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 09:51:39,939 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 09:51:39,940 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 09:51:39,940 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 09:51:39,944 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 09:51:39,944 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:51:39" (1/1) ... [2024-10-24 09:51:39,945 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@641f150e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:39, skipping insertion in model container [2024-10-24 09:51:39,945 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:51:39" (1/1) ... [2024-10-24 09:51:39,965 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 09:51:40,104 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_50-1loop_file-70.i[915,928] [2024-10-24 09:51:40,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 09:51:40,201 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 09:51:40,213 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_50-1loop_file-70.i[915,928] [2024-10-24 09:51:40,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 09:51:40,258 INFO L204 MainTranslator]: Completed translation [2024-10-24 09:51:40,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:40 WrapperNode [2024-10-24 09:51:40,258 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 09:51:40,259 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 09:51:40,259 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 09:51:40,260 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 09:51:40,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:40" (1/1) ... [2024-10-24 09:51:40,274 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:40" (1/1) ... [2024-10-24 09:51:40,324 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 121 [2024-10-24 09:51:40,324 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 09:51:40,324 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 09:51:40,325 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 09:51:40,325 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 09:51:40,345 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:40" (1/1) ... [2024-10-24 09:51:40,345 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:40" (1/1) ... [2024-10-24 09:51:40,347 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:40" (1/1) ... [2024-10-24 09:51:40,361 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]. [2024-10-24 09:51:40,361 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:40" (1/1) ... [2024-10-24 09:51:40,361 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:40" (1/1) ... [2024-10-24 09:51:40,367 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:40" (1/1) ... [2024-10-24 09:51:40,369 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:40" (1/1) ... [2024-10-24 09:51:40,370 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:40" (1/1) ... [2024-10-24 09:51:40,371 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:40" (1/1) ... [2024-10-24 09:51:40,373 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 09:51:40,378 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 09:51:40,378 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 09:51:40,378 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 09:51:40,379 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:40" (1/1) ... [2024-10-24 09:51:40,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 09:51:40,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 09:51:40,416 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) [2024-10-24 09:51:40,423 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 [2024-10-24 09:51:40,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 09:51:40,459 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 09:51:40,460 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 09:51:40,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 09:51:40,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 09:51:40,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 09:51:40,540 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 09:51:40,542 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 09:51:40,862 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-10-24 09:51:40,862 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 09:51:40,904 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 09:51:40,905 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 09:51:40,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:51:40 BoogieIcfgContainer [2024-10-24 09:51:40,905 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 09:51:40,907 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 09:51:40,907 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 09:51:40,910 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 09:51:40,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:51:39" (1/3) ... [2024-10-24 09:51:40,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8661961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:51:40, skipping insertion in model container [2024-10-24 09:51:40,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:40" (2/3) ... [2024-10-24 09:51:40,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8661961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:51:40, skipping insertion in model container [2024-10-24 09:51:40,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:51:40" (3/3) ... [2024-10-24 09:51:40,912 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-70.i [2024-10-24 09:51:40,924 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 09:51:40,925 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 09:51:40,969 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 09:51:40,974 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;@6fcbb72f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 09:51:40,975 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 09:51:40,979 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 28 states have internal predecessors, (40), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 09:51:40,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-24 09:51:40,986 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:51:40,987 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:51:40,987 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:51:40,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:51:40,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1858714461, now seen corresponding path program 1 times [2024-10-24 09:51:40,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:51:40,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544220013] [2024-10-24 09:51:40,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:51:40,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:51:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:41,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:51:41,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:41,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 09:51:41,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:41,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 09:51:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:41,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 09:51:41,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:41,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 09:51:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:41,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 09:51:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:41,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 09:51:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:41,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 09:51:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:41,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 09:51:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:41,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 09:51:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:41,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 09:51:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:41,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 09:51:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:41,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 09:51:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:41,212 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 09:51:41,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:51:41,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544220013] [2024-10-24 09:51:41,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544220013] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:51:41,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:51:41,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 09:51:41,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424474925] [2024-10-24 09:51:41,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:51:41,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 09:51:41,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:51:41,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 09:51:41,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 09:51:41,236 INFO L87 Difference]: Start difference. First operand has 43 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 28 states have internal predecessors, (40), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 09:51:41,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:51:41,270 INFO L93 Difference]: Finished difference Result 85 states and 144 transitions. [2024-10-24 09:51:41,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 09:51:41,272 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 85 [2024-10-24 09:51:41,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:51:41,277 INFO L225 Difference]: With dead ends: 85 [2024-10-24 09:51:41,277 INFO L226 Difference]: Without dead ends: 41 [2024-10-24 09:51:41,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 09:51:41,282 INFO L432 NwaCegarLoop]: 57 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, 57 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 [2024-10-24 09:51:41,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 09:51:41,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-10-24 09:51:41,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-10-24 09:51:41,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 09:51:41,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 60 transitions. [2024-10-24 09:51:41,331 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 60 transitions. Word has length 85 [2024-10-24 09:51:41,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:51:41,332 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 60 transitions. [2024-10-24 09:51:41,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 09:51:41,332 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 60 transitions. [2024-10-24 09:51:41,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-24 09:51:41,334 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:51:41,334 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:51:41,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 09:51:41,335 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:51:41,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:51:41,335 INFO L85 PathProgramCache]: Analyzing trace with hash 2123223595, now seen corresponding path program 1 times [2024-10-24 09:51:41,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:51:41,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51178285] [2024-10-24 09:51:41,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:51:41,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:51:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:42,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:51:42,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:42,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 09:51:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:42,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 09:51:42,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:42,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 09:51:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:42,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 09:51:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:42,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 09:51:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:42,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 09:51:42,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:42,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 09:51:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:42,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 09:51:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:42,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 09:51:42,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:42,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 09:51:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:42,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 09:51:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:42,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 09:51:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:42,404 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-10-24 09:51:42,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:51:42,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51178285] [2024-10-24 09:51:42,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51178285] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 09:51:42,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925270596] [2024-10-24 09:51:42,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:51:42,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 09:51:42,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 09:51:42,407 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 09:51:42,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 09:51:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:42,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-24 09:51:42,696 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 09:51:43,420 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-10-24 09:51:43,421 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 09:51:43,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925270596] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:51:43,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 09:51:43,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 17 [2024-10-24 09:51:43,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449937928] [2024-10-24 09:51:43,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:51:43,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 09:51:43,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:51:43,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 09:51:43,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-10-24 09:51:43,430 INFO L87 Difference]: Start difference. First operand 41 states and 60 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 10 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 09:51:44,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:51:44,241 INFO L93 Difference]: Finished difference Result 172 states and 246 transitions. [2024-10-24 09:51:44,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 09:51:44,241 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 10 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 85 [2024-10-24 09:51:44,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:51:44,243 INFO L225 Difference]: With dead ends: 172 [2024-10-24 09:51:44,243 INFO L226 Difference]: Without dead ends: 132 [2024-10-24 09:51:44,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=193, Invalid=677, Unknown=0, NotChecked=0, Total=870 [2024-10-24 09:51:44,245 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 172 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 09:51:44,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 307 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 09:51:44,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-10-24 09:51:44,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 89. [2024-10-24 09:51:44,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 58 states have (on average 1.2758620689655173) internal successors, (74), 58 states have internal predecessors, (74), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-24 09:51:44,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 126 transitions. [2024-10-24 09:51:44,266 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 126 transitions. Word has length 85 [2024-10-24 09:51:44,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:51:44,266 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 126 transitions. [2024-10-24 09:51:44,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 10 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 09:51:44,267 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 126 transitions. [2024-10-24 09:51:44,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-24 09:51:44,269 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:51:44,269 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:51:44,282 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 09:51:44,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 09:51:44,470 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:51:44,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:51:44,471 INFO L85 PathProgramCache]: Analyzing trace with hash -2114485399, now seen corresponding path program 1 times [2024-10-24 09:51:44,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:51:44,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342344905] [2024-10-24 09:51:44,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:51:44,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:51:44,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 09:51:44,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1841922137] [2024-10-24 09:51:44,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:51:44,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 09:51:44,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 09:51:44,655 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 09:51:44,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 09:51:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 09:51:45,001 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 09:51:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 09:51:45,089 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 09:51:45,089 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 09:51:45,090 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-24 09:51:45,119 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 09:51:45,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-24 09:51:45,296 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-24 09:51:45,373 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 09:51:45,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:51:45 BoogieIcfgContainer [2024-10-24 09:51:45,376 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 09:51:45,376 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 09:51:45,376 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 09:51:45,376 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 09:51:45,377 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:51:40" (3/4) ... [2024-10-24 09:51:45,381 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 09:51:45,383 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 09:51:45,383 INFO L158 Benchmark]: Toolchain (without parser) took 5444.53ms. Allocated memory was 144.7MB in the beginning and 318.8MB in the end (delta: 174.1MB). Free memory was 74.8MB in the beginning and 257.0MB in the end (delta: -182.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 09:51:45,384 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 144.7MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 09:51:45,384 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.85ms. Allocated memory was 144.7MB in the beginning and 243.3MB in the end (delta: 98.6MB). Free memory was 74.5MB in the beginning and 208.6MB in the end (delta: -134.0MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2024-10-24 09:51:45,385 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.72ms. Allocated memory is still 243.3MB. Free memory was 208.5MB in the beginning and 211.1MB in the end (delta: -2.6MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2024-10-24 09:51:45,385 INFO L158 Benchmark]: Boogie Preprocessor took 49.13ms. Allocated memory is still 243.3MB. Free memory was 211.1MB in the beginning and 205.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-24 09:51:45,386 INFO L158 Benchmark]: RCFGBuilder took 527.22ms. Allocated memory is still 243.3MB. Free memory was 205.8MB in the beginning and 179.6MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-24 09:51:45,386 INFO L158 Benchmark]: TraceAbstraction took 4468.62ms. Allocated memory was 243.3MB in the beginning and 318.8MB in the end (delta: 75.5MB). Free memory was 178.6MB in the beginning and 257.0MB in the end (delta: -78.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 09:51:45,386 INFO L158 Benchmark]: Witness Printer took 6.62ms. Allocated memory is still 318.8MB. Free memory is still 257.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 09:51:45,387 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 144.7MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.85ms. Allocated memory was 144.7MB in the beginning and 243.3MB in the end (delta: 98.6MB). Free memory was 74.5MB in the beginning and 208.6MB in the end (delta: -134.0MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.72ms. Allocated memory is still 243.3MB. Free memory was 208.5MB in the beginning and 211.1MB in the end (delta: -2.6MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.13ms. Allocated memory is still 243.3MB. Free memory was 211.1MB in the beginning and 205.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 527.22ms. Allocated memory is still 243.3MB. Free memory was 205.8MB in the beginning and 179.6MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4468.62ms. Allocated memory was 243.3MB in the beginning and 318.8MB in the end (delta: 75.5MB). Free memory was 178.6MB in the beginning and 257.0MB in the end (delta: -78.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.62ms. Allocated memory is still 318.8MB. Free memory is still 257.0MB. 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 109. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 5.05; [L23] double var_1_6 = 0.0; [L24] double var_1_7 = 49.5; [L25] double var_1_8 = 16.75; [L26] unsigned short int var_1_9 = 1; [L27] unsigned long int var_1_11 = 8; [L28] unsigned char var_1_12 = 0; [L29] unsigned char var_1_13 = 1; [L30] unsigned char var_1_14 = 32; [L31] unsigned char var_1_15 = 50; [L32] unsigned char var_1_16 = 8; [L33] unsigned char var_1_17 = 32; [L34] unsigned long int var_1_18 = 2; [L35] unsigned long int var_1_19 = 3876014737; [L36] unsigned char var_1_20 = 0; [L37] double last_1_var_1_1 = 5.05; [L38] unsigned short int last_1_var_1_9 = 1; [L39] unsigned long int last_1_var_1_11 = 8; [L40] unsigned char last_1_var_1_14 = 32; [L41] unsigned char last_1_var_1_20 = 0; [L113] isInitial = 1 [L114] FCALL initially() [L115] int k_loop; [L116] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_6=0, var_1_7=99/2, var_1_8=67/4, var_1_9=1] [L116] COND TRUE k_loop < 1 [L117] CALL updateLastVariables() [L102] last_1_var_1_1 = var_1_1 [L103] last_1_var_1_9 = var_1_9 [L104] last_1_var_1_11 = var_1_11 [L105] last_1_var_1_14 = var_1_14 [L106] last_1_var_1_20 = var_1_20 [L117] RET updateLastVariables() [L118] CALL updateVariables() [L79] var_1_6 = __VERIFIER_nondet_double() [L80] CALL assume_abort_if_not((var_1_6 >= 2305843.009213691390e+12F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 4611686.018427382800e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_7=99/2, var_1_8=67/4, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_7=99/2, var_1_8=67/4, var_1_9=1] [L80] RET assume_abort_if_not((var_1_6 >= 2305843.009213691390e+12F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 4611686.018427382800e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_7=99/2, var_1_8=67/4, var_1_9=1] [L81] var_1_7 = __VERIFIER_nondet_double() [L82] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 2305843.009213691390e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_8=67/4, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_8=67/4, var_1_9=1] [L82] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 2305843.009213691390e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_8=67/4, var_1_9=1] [L83] var_1_8 = __VERIFIER_nondet_double() [L84] 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, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L84] 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, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L85] var_1_13 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_13 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L86] RET assume_abort_if_not(var_1_13 >= 1) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L87] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L87] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L88] var_1_15 = __VERIFIER_nondet_uchar() [L89] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L89] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L90] CALL assume_abort_if_not(var_1_15 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L90] RET assume_abort_if_not(var_1_15 <= 127) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L91] var_1_16 = __VERIFIER_nondet_uchar() [L92] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L92] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L93] CALL assume_abort_if_not(var_1_16 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L93] RET assume_abort_if_not(var_1_16 <= 127) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L94] var_1_17 = __VERIFIER_nondet_uchar() [L95] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L95] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L96] CALL assume_abort_if_not(var_1_17 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L96] RET assume_abort_if_not(var_1_17 <= 254) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L97] var_1_19 = __VERIFIER_nondet_ulong() [L98] CALL assume_abort_if_not(var_1_19 >= 3221225470) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=2, var_1_19=7516192766, var_1_1=101/20, var_1_20=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=2, var_1_19=7516192766, var_1_1=101/20, var_1_20=0, var_1_9=1] [L98] RET assume_abort_if_not(var_1_19 >= 3221225470) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=2, var_1_19=7516192766, var_1_1=101/20, var_1_20=0, var_1_9=1] [L99] CALL assume_abort_if_not(var_1_19 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=2, var_1_19=7516192766, var_1_1=101/20, var_1_20=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=2, var_1_19=7516192766, var_1_1=101/20, var_1_20=0, var_1_9=1] [L99] RET assume_abort_if_not(var_1_19 <= 4294967294) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=2, var_1_19=7516192766, var_1_1=101/20, var_1_20=0, var_1_9=1] [L118] RET updateVariables() [L119] CALL step() [L45] COND TRUE \read(var_1_13) [L46] var_1_18 = ((var_1_19 - last_1_var_1_9) - last_1_var_1_11) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=7516192757, var_1_19=7516192766, var_1_1=101/20, var_1_20=0, var_1_9=1] [L50] COND FALSE !(var_1_6 > ((((var_1_8) < (last_1_var_1_1)) ? (var_1_8) : (last_1_var_1_1)))) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=7516192757, var_1_19=7516192766, var_1_1=101/20, var_1_20=0, var_1_9=1] [L59] COND TRUE (8 - 64) <= (var_1_9 - var_1_9) [L60] var_1_14 = (((((var_1_15 + var_1_16)) < (var_1_17)) ? ((var_1_15 + var_1_16)) : (var_1_17))) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=7516192757, var_1_19=7516192766, var_1_1=101/20, var_1_20=0, var_1_9=1] [L64] signed long int stepLocal_0 = - ((((var_1_9) < (var_1_9)) ? (var_1_9) : (var_1_9))); VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, stepLocal_0=-1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=7516192757, var_1_19=7516192766, var_1_1=101/20, var_1_20=0, var_1_9=1] [L65] COND FALSE !(var_1_18 >= stepLocal_0) [L68] var_1_1 = var_1_7 VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=7516192757, var_1_19=7516192766, var_1_1=2, var_1_20=0, var_1_7=2, var_1_9=1] [L70] COND TRUE (var_1_14 / var_1_19) <= ((((var_1_18) < (var_1_14)) ? (var_1_18) : (var_1_14))) [L71] var_1_20 = var_1_13 VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=7516192757, var_1_19=7516192766, var_1_1=2, var_1_20=1, var_1_7=2, var_1_9=1] [L73] COND TRUE \read(var_1_20) [L74] var_1_12 = var_1_13 VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=7516192757, var_1_19=7516192766, var_1_1=2, var_1_20=1, var_1_7=2, var_1_9=1] [L76] var_1_11 = (var_1_9 + (((((var_1_18) < (var_1_9)) ? (var_1_18) : (var_1_9))) + 2u)) [L119] RET step() [L120] CALL, EXPR property() [L109-L110] return (((((((var_1_18 >= (- ((((var_1_9) < (var_1_9)) ? (var_1_9) : (var_1_9))))) ? (var_1_1 == ((double) (((var_1_6 - var_1_7) - ((((64.75) > (128.725)) ? (64.75) : (128.725)))) + var_1_8))) : (var_1_1 == ((double) var_1_7))) && ((var_1_6 > ((((var_1_8) < (last_1_var_1_1)) ? (var_1_8) : (last_1_var_1_1)))) ? ((! ((last_1_var_1_1 == var_1_7) && (last_1_var_1_20 || last_1_var_1_20))) ? ((! (var_1_6 <= var_1_7)) ? (var_1_9 == ((unsigned short int) ((((last_1_var_1_14) < (last_1_var_1_14)) ? (last_1_var_1_14) : (last_1_var_1_14))))) : 1) : (var_1_9 == ((unsigned short int) last_1_var_1_14))) : 1)) && (var_1_11 == ((unsigned long int) (var_1_9 + (((((var_1_18) < (var_1_9)) ? (var_1_18) : (var_1_9))) + 2u))))) && (var_1_20 ? (var_1_12 == ((unsigned char) var_1_13)) : 1)) && (((8 - 64) <= (var_1_9 - var_1_9)) ? (var_1_14 == ((unsigned char) (((((var_1_15 + var_1_16)) < (var_1_17)) ? ((var_1_15 + var_1_16)) : (var_1_17))))) : (var_1_14 == ((unsigned char) var_1_17)))) && (var_1_13 ? (var_1_18 == ((unsigned long int) ((var_1_19 - last_1_var_1_9) - last_1_var_1_11))) : (var_1_18 == ((unsigned long int) (((((var_1_19 - var_1_17)) > (var_1_15)) ? ((var_1_19 - var_1_17)) : (var_1_15))))))) && (((var_1_14 / var_1_19) <= ((((var_1_18) < (var_1_14)) ? (var_1_18) : (var_1_14)))) ? (var_1_20 == ((unsigned char) var_1_13)) : 1) ; [L120] RET, EXPR property() [L120] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=4, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=7516192757, var_1_19=7516192766, var_1_1=2, var_1_20=1, var_1_7=2, var_1_9=1] [L19] reach_error() VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=4, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=7516192757, var_1_19=7516192766, var_1_1=2, var_1_20=1, var_1_7=2, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 3, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 172 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 172 mSDsluCounter, 364 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 231 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 448 IncrementalHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 133 mSDtfsCounter, 448 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=2, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 43 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 425 NumberOfCodeBlocks, 425 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 252 ConstructedInterpolants, 0 QuantifiedInterpolants, 1407 SizeOfPredicates, 6 NumberOfNonLiveVariables, 225 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 933/936 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 [2024-10-24 09:51:45,427 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_50-1loop_file-70.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 13cde4b32ba56cbf3417fbd3d3edc8641f523883922a409d107d73798b0beac0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 09:51:47,577 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 09:51:47,650 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-24 09:51:47,655 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 09:51:47,656 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 09:51:47,683 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 09:51:47,684 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 09:51:47,684 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 09:51:47,685 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 09:51:47,686 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 09:51:47,686 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 09:51:47,686 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 09:51:47,687 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 09:51:47,687 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 09:51:47,687 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 09:51:47,687 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 09:51:47,688 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 09:51:47,688 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 09:51:47,688 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 09:51:47,688 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 09:51:47,688 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 09:51:47,692 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 09:51:47,693 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 09:51:47,693 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 09:51:47,693 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 09:51:47,693 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 09:51:47,693 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 09:51:47,693 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 09:51:47,693 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 09:51:47,694 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 09:51:47,695 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 09:51:47,695 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 09:51:47,695 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 09:51:47,695 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 09:51:47,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 09:51:47,696 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 09:51:47,696 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 09:51:47,696 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 09:51:47,697 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 09:51:47,697 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 09:51:47,697 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 09:51:47,697 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 09:51:47,697 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 09:51:47,697 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 09:51:47,698 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 09:51:47,698 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13cde4b32ba56cbf3417fbd3d3edc8641f523883922a409d107d73798b0beac0 [2024-10-24 09:51:47,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 09:51:48,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 09:51:48,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 09:51:48,011 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 09:51:48,017 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 09:51:48,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-70.i [2024-10-24 09:51:49,357 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 09:51:49,505 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 09:51:49,505 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-70.i [2024-10-24 09:51:49,516 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41ecd386e/e0d89ce2db674b7b9e9cf693bf0f3a68/FLAG8c79c83d5 [2024-10-24 09:51:49,916 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41ecd386e/e0d89ce2db674b7b9e9cf693bf0f3a68 [2024-10-24 09:51:49,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 09:51:49,921 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 09:51:49,927 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 09:51:49,927 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 09:51:49,934 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 09:51:49,935 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:51:49" (1/1) ... [2024-10-24 09:51:49,937 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74d1af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:49, skipping insertion in model container [2024-10-24 09:51:49,937 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:51:49" (1/1) ... [2024-10-24 09:51:49,968 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 09:51:50,113 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_50-1loop_file-70.i[915,928] [2024-10-24 09:51:50,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 09:51:50,165 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 09:51:50,177 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_50-1loop_file-70.i[915,928] [2024-10-24 09:51:50,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 09:51:50,211 INFO L204 MainTranslator]: Completed translation [2024-10-24 09:51:50,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:50 WrapperNode [2024-10-24 09:51:50,212 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 09:51:50,213 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 09:51:50,213 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 09:51:50,213 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 09:51:50,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:50" (1/1) ... [2024-10-24 09:51:50,233 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:50" (1/1) ... [2024-10-24 09:51:50,261 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 121 [2024-10-24 09:51:50,262 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 09:51:50,266 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 09:51:50,267 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 09:51:50,267 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 09:51:50,276 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:50" (1/1) ... [2024-10-24 09:51:50,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:50" (1/1) ... [2024-10-24 09:51:50,282 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:50" (1/1) ... [2024-10-24 09:51:50,299 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]. [2024-10-24 09:51:50,302 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:50" (1/1) ... [2024-10-24 09:51:50,302 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:50" (1/1) ... [2024-10-24 09:51:50,311 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:50" (1/1) ... [2024-10-24 09:51:50,317 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:50" (1/1) ... [2024-10-24 09:51:50,321 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:50" (1/1) ... [2024-10-24 09:51:50,326 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:50" (1/1) ... [2024-10-24 09:51:50,329 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 09:51:50,329 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 09:51:50,330 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 09:51:50,330 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 09:51:50,330 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:50" (1/1) ... [2024-10-24 09:51:50,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 09:51:50,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 09:51:50,356 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) [2024-10-24 09:51:50,358 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 [2024-10-24 09:51:50,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 09:51:50,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 09:51:50,403 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 09:51:50,403 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 09:51:50,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 09:51:50,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 09:51:50,462 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 09:51:50,463 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 09:51:55,942 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-10-24 09:51:55,944 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 09:51:56,086 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 09:51:56,086 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 09:51:56,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:51:56 BoogieIcfgContainer [2024-10-24 09:51:56,086 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 09:51:56,094 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 09:51:56,095 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 09:51:56,102 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 09:51:56,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:51:49" (1/3) ... [2024-10-24 09:51:56,103 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59af3733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:51:56, skipping insertion in model container [2024-10-24 09:51:56,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:50" (2/3) ... [2024-10-24 09:51:56,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59af3733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:51:56, skipping insertion in model container [2024-10-24 09:51:56,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:51:56" (3/3) ... [2024-10-24 09:51:56,110 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-70.i [2024-10-24 09:51:56,138 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 09:51:56,142 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 09:51:56,220 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 09:51:56,228 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;@6ca7e168, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 09:51:56,228 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 09:51:56,232 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 28 states have internal predecessors, (40), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 09:51:56,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-24 09:51:56,240 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:51:56,241 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:51:56,241 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:51:56,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:51:56,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1858714461, now seen corresponding path program 1 times [2024-10-24 09:51:56,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 09:51:56,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1894535049] [2024-10-24 09:51:56,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:51:56,261 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 [2024-10-24 09:51:56,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 09:51:56,263 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) [2024-10-24 09:51:56,266 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 [2024-10-24 09:51:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:56,561 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 09:51:56,569 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 09:51:56,631 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-10-24 09:51:56,632 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 09:51:56,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 09:51:56,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1894535049] [2024-10-24 09:51:56,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1894535049] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:51:56,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:51:56,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 09:51:56,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265004583] [2024-10-24 09:51:56,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:51:56,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 09:51:56,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 09:51:56,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 09:51:56,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 09:51:56,665 INFO L87 Difference]: Start difference. First operand has 43 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 28 states have internal predecessors, (40), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 09:51:57,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-24 09:51:59,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-24 09:51:59,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:51:59,383 INFO L93 Difference]: Finished difference Result 85 states and 144 transitions. [2024-10-24 09:51:59,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 09:51:59,385 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 85 [2024-10-24 09:51:59,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:51:59,391 INFO L225 Difference]: With dead ends: 85 [2024-10-24 09:51:59,391 INFO L226 Difference]: Without dead ends: 41 [2024-10-24 09:51:59,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 09:51:59,399 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-24 09:51:59,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-24 09:51:59,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-10-24 09:51:59,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-10-24 09:51:59,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 09:51:59,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 60 transitions. [2024-10-24 09:51:59,446 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 60 transitions. Word has length 85 [2024-10-24 09:51:59,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:51:59,446 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 60 transitions. [2024-10-24 09:51:59,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 09:51:59,447 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 60 transitions. [2024-10-24 09:51:59,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-24 09:51:59,451 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:51:59,451 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:51:59,464 INFO L540 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)] Forceful destruction successful, exit code 0 [2024-10-24 09:51:59,652 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 [2024-10-24 09:51:59,652 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:51:59,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:51:59,653 INFO L85 PathProgramCache]: Analyzing trace with hash 2123223595, now seen corresponding path program 1 times [2024-10-24 09:51:59,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 09:51:59,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194154289] [2024-10-24 09:51:59,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:51:59,654 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 [2024-10-24 09:51:59,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 09:51:59,656 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) [2024-10-24 09:51:59,657 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 [2024-10-24 09:51:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:51:59,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-24 09:51:59,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 09:52:01,270 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-10-24 09:52:01,271 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 09:52:01,522 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 09:52:01,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [194154289] [2024-10-24 09:52:01,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [194154289] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 09:52:01,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1478473875] [2024-10-24 09:52:01,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:52:01,523 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-10-24 09:52:01,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-10-24 09:52:01,526 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-10-24 09:52:01,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-10-24 09:52:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:02,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-24 09:52:02,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 09:52:03,050 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-10-24 09:52:03,051 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 09:52:03,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1478473875] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 09:52:03,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 09:52:03,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2024-10-24 09:52:03,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808056031] [2024-10-24 09:52:03,127 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 09:52:03,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 09:52:03,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 09:52:03,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 09:52:03,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-10-24 09:52:03,129 INFO L87 Difference]: Start difference. First operand 41 states and 60 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 09:52:05,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-24 09:52:07,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-24 09:52:08,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-24 09:52:09,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:52:09,044 INFO L93 Difference]: Finished difference Result 168 states and 243 transitions. [2024-10-24 09:52:09,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 09:52:09,045 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 85 [2024-10-24 09:52:09,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:52:09,047 INFO L225 Difference]: With dead ends: 168 [2024-10-24 09:52:09,047 INFO L226 Difference]: Without dead ends: 128 [2024-10-24 09:52:09,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=132, Invalid=374, Unknown=0, NotChecked=0, Total=506 [2024-10-24 09:52:09,049 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 162 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-10-24 09:52:09,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 226 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-10-24 09:52:09,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-10-24 09:52:09,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 85. [2024-10-24 09:52:09,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 55 states have (on average 1.290909090909091) internal successors, (71), 55 states have internal predecessors, (71), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-24 09:52:09,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 123 transitions. [2024-10-24 09:52:09,073 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 123 transitions. Word has length 85 [2024-10-24 09:52:09,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:52:09,074 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 123 transitions. [2024-10-24 09:52:09,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 09:52:09,074 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 123 transitions. [2024-10-24 09:52:09,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-24 09:52:09,076 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:52:09,076 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:52:09,105 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-10-24 09:52:09,298 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 (3)] Ended with exit code 0 [2024-10-24 09:52:09,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,3 /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 [2024-10-24 09:52:09,488 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:52:09,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:52:09,489 INFO L85 PathProgramCache]: Analyzing trace with hash -2114485399, now seen corresponding path program 1 times [2024-10-24 09:52:09,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 09:52:09,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [427781711] [2024-10-24 09:52:09,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:52:09,490 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 [2024-10-24 09:52:09,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 09:52:09,492 INFO L229 MonitoredProcess]: Starting monitored process 5 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) [2024-10-24 09:52:09,493 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 (5)] Waiting until timeout for monitored process [2024-10-24 09:52:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:09,750 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-24 09:52:09,754 INFO L278 TraceCheckSpWp]: Computing forward predicates...