./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-2.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 38ff29ca823d3fabba03e4fbd7eddc473b350ca4f58c43465ea4147ad1b90a75 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 22:45:09,021 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:45:09,114 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 22:45:09,117 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:45:09,118 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 22:45:09,137 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:45:09,138 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 22:45:09,138 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 22:45:09,139 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 22:45:09,140 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 22:45:09,141 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:45:09,141 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 22:45:09,142 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:45:09,142 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:45:09,143 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 22:45:09,143 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:45:09,144 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:45:09,144 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:45:09,144 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:45:09,145 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:45:09,145 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:45:09,145 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:45:09,146 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:45:09,146 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:45:09,146 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:45:09,147 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:45:09,147 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:45:09,147 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:45:09,148 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:45:09,148 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 22:45:09,148 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 22:45:09,148 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 22:45:09,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 22:45:09,149 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:45:09,149 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:45:09,149 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:45:09,150 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 22:45:09,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:45:09,150 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 22:45:09,150 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 22:45:09,151 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 22:45:09,151 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 22:45:09,151 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38ff29ca823d3fabba03e4fbd7eddc473b350ca4f58c43465ea4147ad1b90a75 [2024-11-08 22:45:09,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:45:09,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:45:09,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:45:09,420 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:45:09,420 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:45:09,421 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-2.i [2024-11-08 22:45:10,750 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:45:10,968 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:45:10,969 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-2.i [2024-11-08 22:45:10,978 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/511dcdcb0/a8c00b1e3f744cc39e77a3293221d518/FLAGa109526f1 [2024-11-08 22:45:11,338 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/511dcdcb0/a8c00b1e3f744cc39e77a3293221d518 [2024-11-08 22:45:11,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:45:11,341 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:45:11,343 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:45:11,343 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:45:11,347 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:45:11,348 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:45:11" (1/1) ... [2024-11-08 22:45:11,349 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cd7078c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:11, skipping insertion in model container [2024-11-08 22:45:11,349 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:45:11" (1/1) ... [2024-11-08 22:45:11,373 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:45:11,548 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-2.i[912,925] [2024-11-08 22:45:11,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:45:11,602 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:45:11,612 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-2.i[912,925] [2024-11-08 22:45:11,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:45:11,655 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:45:11,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:11 WrapperNode [2024-11-08 22:45:11,656 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:45:11,657 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:45:11,657 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:45:11,657 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:45:11,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:11" (1/1) ... [2024-11-08 22:45:11,672 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:11" (1/1) ... [2024-11-08 22:45:11,703 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 122 [2024-11-08 22:45:11,704 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:45:11,705 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:45:11,705 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:45:11,705 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:45:11,720 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:11" (1/1) ... [2024-11-08 22:45:11,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:11" (1/1) ... [2024-11-08 22:45:11,722 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:11" (1/1) ... [2024-11-08 22:45:11,738 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 22:45:11,741 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:11" (1/1) ... [2024-11-08 22:45:11,741 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:11" (1/1) ... [2024-11-08 22:45:11,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:11" (1/1) ... [2024-11-08 22:45:11,750 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:11" (1/1) ... [2024-11-08 22:45:11,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:11" (1/1) ... [2024-11-08 22:45:11,753 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:11" (1/1) ... [2024-11-08 22:45:11,756 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:45:11,757 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:45:11,757 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:45:11,757 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:45:11,761 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:11" (1/1) ... [2024-11-08 22:45:11,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 22:45:11,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 22:45:11,800 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 22:45:11,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 22:45:11,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:45:11,849 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 22:45:11,849 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 22:45:11,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 22:45:11,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:45:11,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:45:11,936 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:45:11,940 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:45:12,187 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-08 22:45:12,187 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:45:12,200 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:45:12,200 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 22:45:12,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:45:12 BoogieIcfgContainer [2024-11-08 22:45:12,200 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:45:12,203 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 22:45:12,203 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 22:45:12,207 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 22:45:12,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 10:45:11" (1/3) ... [2024-11-08 22:45:12,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@554bea39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 10:45:12, skipping insertion in model container [2024-11-08 22:45:12,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:11" (2/3) ... [2024-11-08 22:45:12,210 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@554bea39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 10:45:12, skipping insertion in model container [2024-11-08 22:45:12,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:45:12" (3/3) ... [2024-11-08 22:45:12,212 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-2.i [2024-11-08 22:45:12,231 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 22:45:12,231 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 22:45:12,311 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 22:45:12,321 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;@124f0f59, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 22:45:12,322 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 22:45:12,326 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 38 states have internal predecessors, (52), 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) [2024-11-08 22:45:12,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 22:45:12,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:45:12,339 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, 1, 1, 1, 1, 1, 1] [2024-11-08 22:45:12,339 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:45:12,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:45:12,346 INFO L85 PathProgramCache]: Analyzing trace with hash -2140347050, now seen corresponding path program 1 times [2024-11-08 22:45:12,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:45:12,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176529974] [2024-11-08 22:45:12,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:45:12,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:45:12,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:12,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:45:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:12,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 22:45:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:12,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 22:45:12,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:12,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 22:45:12,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:12,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 22:45:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:12,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 22:45:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:12,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 22:45:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:12,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 22:45:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:12,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 22:45:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:12,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 22:45:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:12,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 22:45:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:12,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 22:45:12,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:12,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 22:45:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:12,798 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-08 22:45:12,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:45:12,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176529974] [2024-11-08 22:45:12,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176529974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:45:12,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:45:12,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 22:45:12,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009709217] [2024-11-08 22:45:12,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:45:12,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 22:45:12,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:45:12,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 22:45:12,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 22:45:12,841 INFO L87 Difference]: Start difference. First operand has 53 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 38 states have internal predecessors, (52), 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 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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) [2024-11-08 22:45:12,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:45:12,871 INFO L93 Difference]: Finished difference Result 99 states and 163 transitions. [2024-11-08 22:45:12,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 22:45:12,874 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 91 [2024-11-08 22:45:12,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:45:12,882 INFO L225 Difference]: With dead ends: 99 [2024-11-08 22:45:12,882 INFO L226 Difference]: Without dead ends: 49 [2024-11-08 22:45:12,887 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 [2024-11-08 22:45:12,890 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 22:45:12,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 22:45:12,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-08 22:45:12,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-08 22:45:12,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 34 states have internal predecessors, (43), 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) [2024-11-08 22:45:12,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 69 transitions. [2024-11-08 22:45:12,937 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 69 transitions. Word has length 91 [2024-11-08 22:45:12,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:45:12,938 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 69 transitions. [2024-11-08 22:45:12,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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) [2024-11-08 22:45:12,939 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 69 transitions. [2024-11-08 22:45:12,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 22:45:12,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:45:12,942 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 22:45:12,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 22:45:12,943 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:45:12,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:45:12,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1331715252, now seen corresponding path program 1 times [2024-11-08 22:45:12,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:45:12,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744196132] [2024-11-08 22:45:12,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:45:12,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:45:13,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:45:13,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [512062452] [2024-11-08 22:45:13,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:45:13,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 22:45:13,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 22:45:13,097 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) [2024-11-08 22:45:13,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 22:45:13,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:13,339 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 22:45:13,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:45:13,672 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 147 proven. 9 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-08 22:45:13,672 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 22:45:14,261 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 27 proven. 9 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-08 22:45:14,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:45:14,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744196132] [2024-11-08 22:45:14,263 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 22:45:14,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512062452] [2024-11-08 22:45:14,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512062452] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 22:45:14,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 22:45:14,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-08 22:45:14,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731545678] [2024-11-08 22:45:14,266 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 22:45:14,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 22:45:14,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:45:14,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 22:45:14,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-08 22:45:14,284 INFO L87 Difference]: Start difference. First operand 49 states and 69 transitions. Second operand has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 5 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 3 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-08 22:45:14,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:45:14,688 INFO L93 Difference]: Finished difference Result 123 states and 170 transitions. [2024-11-08 22:45:14,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 22:45:14,689 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 5 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 3 states have call predecessors, (17), 5 states have call successors, (17) Word has length 92 [2024-11-08 22:45:14,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:45:14,691 INFO L225 Difference]: With dead ends: 123 [2024-11-08 22:45:14,691 INFO L226 Difference]: Without dead ends: 77 [2024-11-08 22:45:14,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2024-11-08 22:45:14,694 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 98 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 22:45:14,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 175 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 22:45:14,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-08 22:45:14,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 74. [2024-11-08 22:45:14,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 49 states have internal predecessors, (56), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-08 22:45:14,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 100 transitions. [2024-11-08 22:45:14,722 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 100 transitions. Word has length 92 [2024-11-08 22:45:14,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:45:14,723 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 100 transitions. [2024-11-08 22:45:14,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 5 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 3 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-08 22:45:14,724 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 100 transitions. [2024-11-08 22:45:14,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 22:45:14,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:45:14,726 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 22:45:14,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 22:45:14,926 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 [2024-11-08 22:45:14,927 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:45:14,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:45:14,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1161227543, now seen corresponding path program 1 times [2024-11-08 22:45:14,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:45:14,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446878535] [2024-11-08 22:45:14,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:45:14,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:45:15,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:45:15,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1260367814] [2024-11-08 22:45:15,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:45:15,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 22:45:15,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 22:45:15,018 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) [2024-11-08 22:45:15,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 22:45:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:45:15,120 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:45:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:45:15,216 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 22:45:15,216 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 22:45:15,218 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 22:45:15,236 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 22:45:15,419 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 [2024-11-08 22:45:15,423 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-08 22:45:15,500 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 22:45:15,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 10:45:15 BoogieIcfgContainer [2024-11-08 22:45:15,504 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 22:45:15,505 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:45:15,505 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:45:15,505 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:45:15,506 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:45:12" (3/4) ... [2024-11-08 22:45:15,508 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 22:45:15,509 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:45:15,510 INFO L158 Benchmark]: Toolchain (without parser) took 4168.55ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 133.2MB in the beginning and 116.2MB in the end (delta: 17.0MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. [2024-11-08 22:45:15,510 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 121.6MB. Free memory was 83.6MB in the beginning and 83.5MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:45:15,511 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.96ms. Allocated memory is still 165.7MB. Free memory was 133.2MB in the beginning and 118.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 22:45:15,511 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.39ms. Allocated memory is still 165.7MB. Free memory was 118.5MB in the beginning and 115.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:45:15,512 INFO L158 Benchmark]: Boogie Preprocessor took 51.11ms. Allocated memory is still 165.7MB. Free memory was 115.7MB in the beginning and 113.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:45:15,512 INFO L158 Benchmark]: RCFGBuilder took 443.90ms. Allocated memory is still 165.7MB. Free memory was 113.0MB in the beginning and 96.9MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 22:45:15,512 INFO L158 Benchmark]: TraceAbstraction took 3301.48ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 96.2MB in the beginning and 116.2MB in the end (delta: -20.0MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2024-11-08 22:45:15,513 INFO L158 Benchmark]: Witness Printer took 4.62ms. Allocated memory is still 199.2MB. Free memory is still 116.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:45:15,514 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 121.6MB. Free memory was 83.6MB in the beginning and 83.5MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.96ms. Allocated memory is still 165.7MB. Free memory was 133.2MB in the beginning and 118.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.39ms. Allocated memory is still 165.7MB. Free memory was 118.5MB in the beginning and 115.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.11ms. Allocated memory is still 165.7MB. Free memory was 115.7MB in the beginning and 113.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 443.90ms. Allocated memory is still 165.7MB. Free memory was 113.0MB in the beginning and 96.9MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3301.48ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 96.2MB in the beginning and 116.2MB in the end (delta: -20.0MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * Witness Printer took 4.62ms. Allocated memory is still 199.2MB. Free memory is still 116.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 117, overapproximation of someBinaryDOUBLEComparisonOperation at line 117, overapproximation of someBinaryArithmeticDOUBLEoperation at line 86. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 3.95; [L23] float var_1_4 = 9999999.8; [L24] float var_1_5 = 8.6; [L25] unsigned long int var_1_6 = 10000; [L26] double var_1_8 = 64.5; [L27] float var_1_10 = 255.25; [L28] float var_1_11 = 7.5; [L29] float var_1_12 = 0.0; [L30] float var_1_13 = 64.8; [L31] double var_1_14 = 127.75; [L32] signed char var_1_15 = 8; [L33] signed char var_1_16 = 32; [L34] unsigned char var_1_17 = 0; [L35] unsigned char var_1_18 = 0; [L36] double var_1_19 = 2.25; [L37] unsigned char var_1_20 = 0; [L38] unsigned short int var_1_21 = 256; [L39] unsigned long int last_1_var_1_6 = 10000; VAL [isInitial=0, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_4=49999999/5, var_1_5=43/5, var_1_6=10000, var_1_8=129/2] [L121] isInitial = 1 [L122] FCALL initially() [L123] COND TRUE 1 [L124] CALL updateLastVariables() [L114] last_1_var_1_6 = var_1_6 VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_4=49999999/5, var_1_5=43/5, var_1_6=10000, var_1_8=129/2] [L124] RET updateLastVariables() [L125] CALL updateVariables() [L90] var_1_4 = __VERIFIER_nondet_float() [L91] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=43/5, var_1_6=10000, var_1_8=129/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=43/5, var_1_6=10000, var_1_8=129/2] [L91] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=43/5, var_1_6=10000, var_1_8=129/2] [L92] var_1_5 = __VERIFIER_nondet_float() [L93] CALL assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_8=129/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_8=129/2] [L93] RET assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_8=129/2] [L94] var_1_8 = __VERIFIER_nondet_double() [L95] CALL assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L95] RET assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L96] var_1_11 = __VERIFIER_nondet_float() [L97] CALL assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L97] RET assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L98] CALL assume_abort_if_not(var_1_11 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L98] RET assume_abort_if_not(var_1_11 != 0.0F) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L99] var_1_12 = __VERIFIER_nondet_float() [L100] CALL assume_abort_if_not((var_1_12 >= 4611686.018427382800e+12F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L100] RET assume_abort_if_not((var_1_12 >= 4611686.018427382800e+12F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L101] var_1_13 = __VERIFIER_nondet_float() [L102] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L102] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L103] var_1_15 = __VERIFIER_nondet_char() [L104] CALL assume_abort_if_not(var_1_15 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_14=511/4, var_1_15=-1, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_14=511/4, var_1_15=-1, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L104] RET assume_abort_if_not(var_1_15 >= -1) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_14=511/4, var_1_15=-1, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L105] CALL assume_abort_if_not(var_1_15 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_14=511/4, var_1_15=-1, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_14=511/4, var_1_15=-1, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L105] RET assume_abort_if_not(var_1_15 <= 127) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_14=511/4, var_1_15=-1, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L106] var_1_16 = __VERIFIER_nondet_char() [L107] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L107] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L108] CALL assume_abort_if_not(var_1_16 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L108] RET assume_abort_if_not(var_1_16 <= 127) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L109] var_1_18 = __VERIFIER_nondet_uchar() [L110] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L110] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L111] CALL assume_abort_if_not(var_1_18 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L111] RET assume_abort_if_not(var_1_18 <= 0) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L125] RET updateVariables() [L126] CALL step() [L43] COND TRUE (var_1_15 - ((((0) < (var_1_16)) ? (0) : (var_1_16)))) > last_1_var_1_6 [L44] var_1_14 = var_1_12 VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_12=2, var_1_14=2, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L46] COND FALSE !((var_1_5 / var_1_11) >= (var_1_8 - var_1_4)) [L49] var_1_10 = 4.2f VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=21/5, var_1_12=2, var_1_14=2, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000] [L51] var_1_20 = var_1_16 [L52] var_1_21 = var_1_16 VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=21/5, var_1_12=2, var_1_14=2, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=1, var_1_21=1, var_1_6=10000] [L53] COND TRUE var_1_21 <= (var_1_16 * var_1_20) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=21/5, var_1_12=2, var_1_14=2, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=1, var_1_21=1, var_1_6=10000] [L54] COND TRUE (var_1_5 + var_1_14) <= 127.025f [L55] var_1_17 = var_1_18 VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=21/5, var_1_12=2, var_1_14=2, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=1, var_1_21=1, var_1_6=10000] [L62] unsigned char stepLocal_0 = var_1_20 != var_1_20; VAL [isInitial=1, last_1_var_1_6=10000, stepLocal_0=0, var_1_10=21/5, var_1_12=2, var_1_14=2, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=1, var_1_21=1, var_1_6=10000] [L63] COND FALSE !(\read(var_1_17)) [L74] var_1_6 = var_1_20 VAL [isInitial=1, last_1_var_1_6=10000, stepLocal_0=0, var_1_10=21/5, var_1_12=2, var_1_14=2, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=1, var_1_21=1, var_1_6=1] [L76] COND TRUE var_1_6 <= var_1_6 VAL [isInitial=1, last_1_var_1_6=10000, stepLocal_0=0, var_1_10=21/5, var_1_12=2, var_1_14=2, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=1, var_1_21=1, var_1_6=1] [L77] COND FALSE !(var_1_6 > var_1_6) [L80] var_1_1 = var_1_5 VAL [isInitial=1, last_1_var_1_6=10000, stepLocal_0=0, var_1_10=21/5, var_1_12=2, var_1_14=2, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=3, var_1_20=1, var_1_21=1, var_1_5=3, var_1_6=1] [L85] COND TRUE var_1_1 < var_1_11 [L86] var_1_19 = (var_1_13 - 256.4) VAL [isInitial=1, last_1_var_1_6=10000, stepLocal_0=0, var_1_10=21/5, var_1_12=2, var_1_14=2, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_1=3, var_1_20=1, var_1_21=1, var_1_5=3, var_1_6=1] [L126] RET step() [L127] CALL, EXPR property() [L117-L118] return ((((((((var_1_6 <= var_1_6) ? ((var_1_6 > var_1_6) ? (var_1_1 == ((float) (var_1_4 - var_1_5))) : (var_1_1 == ((float) var_1_5))) : (var_1_1 == ((float) var_1_4))) && (var_1_17 ? ((((((var_1_14) > (((((var_1_5) > (199.78)) ? (var_1_5) : (199.78))))) ? (var_1_14) : (((((var_1_5) > (199.78)) ? (var_1_5) : (199.78)))))) != (var_1_4 - var_1_8)) ? (((var_1_20 != var_1_20) || var_1_17) ? (var_1_6 == ((unsigned long int) var_1_20)) : (var_1_6 == ((unsigned long int) 5u))) : (var_1_6 == ((unsigned long int) var_1_20))) : (var_1_6 == ((unsigned long int) var_1_20)))) && (((var_1_5 / var_1_11) >= (var_1_8 - var_1_4)) ? (var_1_10 == ((float) (((((var_1_5 - (var_1_12 - var_1_13))) < (var_1_4)) ? ((var_1_5 - (var_1_12 - var_1_13))) : (var_1_4))))) : (var_1_10 == ((float) 4.2f)))) && (((var_1_15 - ((((0) < (var_1_16)) ? (0) : (var_1_16)))) > last_1_var_1_6) ? (var_1_14 == ((double) var_1_12)) : 1)) && ((var_1_21 <= (var_1_16 * var_1_20)) ? (((var_1_5 + var_1_14) <= 127.025f) ? (var_1_17 == ((unsigned char) var_1_18)) : (var_1_17 == ((unsigned char) var_1_18))) : (var_1_17 == ((unsigned char) var_1_18)))) && ((var_1_1 < var_1_11) ? (var_1_19 == ((double) (var_1_13 - 256.4))) : 1)) && (var_1_20 == ((unsigned char) var_1_16))) && (var_1_21 == ((unsigned short int) var_1_16)) ; VAL [\result=0, isInitial=1, last_1_var_1_6=10000, var_1_10=21/5, var_1_12=2, var_1_14=2, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_1=3, var_1_20=1, var_1_21=1, var_1_5=3, var_1_6=1] [L127] RET, EXPR property() [L127] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=21/5, var_1_12=2, var_1_14=2, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_1=3, var_1_20=1, var_1_21=1, var_1_5=3, var_1_6=1] [L19] reach_error() VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=21/5, var_1_12=2, var_1_14=2, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_1=3, var_1_20=1, var_1_21=1, var_1_5=3, var_1_6=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 53 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 3, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 116 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 98 mSDsluCounter, 244 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 109 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 220 IncrementalHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 135 mSDtfsCounter, 220 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 228 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=2, InterpolantAutomatonStates: 14, 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 461 NumberOfCodeBlocks, 461 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 272 ConstructedInterpolants, 0 QuantifiedInterpolants, 593 SizeOfPredicates, 3 NumberOfNonLiveVariables, 229 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 918/936 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 [2024-11-08 22:45:15,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-2.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 38ff29ca823d3fabba03e4fbd7eddc473b350ca4f58c43465ea4147ad1b90a75 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 22:45:17,711 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:45:17,789 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 22:45:17,796 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:45:17,796 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 22:45:17,825 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:45:17,826 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 22:45:17,826 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 22:45:17,827 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 22:45:17,827 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 22:45:17,828 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:45:17,828 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 22:45:17,829 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:45:17,829 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:45:17,829 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 22:45:17,830 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:45:17,830 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:45:17,830 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:45:17,831 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:45:17,831 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:45:17,831 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:45:17,833 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:45:17,834 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:45:17,834 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 22:45:17,834 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 22:45:17,835 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:45:17,835 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 22:45:17,835 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:45:17,836 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:45:17,836 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:45:17,836 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:45:17,837 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 22:45:17,837 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 22:45:17,837 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 22:45:17,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 22:45:17,838 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:45:17,838 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:45:17,839 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:45:17,839 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-08 22:45:17,839 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:45:17,840 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 22:45:17,842 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 22:45:17,843 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 22:45:17,843 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 22:45:17,843 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38ff29ca823d3fabba03e4fbd7eddc473b350ca4f58c43465ea4147ad1b90a75 [2024-11-08 22:45:18,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:45:18,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:45:18,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:45:18,214 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:45:18,214 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:45:18,215 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-2.i [2024-11-08 22:45:19,750 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:45:19,949 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:45:19,952 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-2.i [2024-11-08 22:45:19,960 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9645717d/28bfb9482b384610ab81796b9b111a49/FLAGa5d8b101f [2024-11-08 22:45:20,329 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9645717d/28bfb9482b384610ab81796b9b111a49 [2024-11-08 22:45:20,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:45:20,333 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:45:20,335 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:45:20,335 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:45:20,341 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:45:20,342 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:45:20" (1/1) ... [2024-11-08 22:45:20,343 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ccea4f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:20, skipping insertion in model container [2024-11-08 22:45:20,343 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:45:20" (1/1) ... [2024-11-08 22:45:20,367 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:45:20,549 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-2.i[912,925] [2024-11-08 22:45:20,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:45:20,652 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:45:20,664 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-2.i[912,925] [2024-11-08 22:45:20,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:45:20,708 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:45:20,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:20 WrapperNode [2024-11-08 22:45:20,708 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:45:20,709 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:45:20,709 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:45:20,710 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:45:20,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:20" (1/1) ... [2024-11-08 22:45:20,733 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:20" (1/1) ... [2024-11-08 22:45:20,764 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 120 [2024-11-08 22:45:20,769 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:45:20,769 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:45:20,773 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:45:20,773 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:45:20,785 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:20" (1/1) ... [2024-11-08 22:45:20,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:20" (1/1) ... [2024-11-08 22:45:20,790 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:20" (1/1) ... [2024-11-08 22:45:20,810 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 22:45:20,812 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:20" (1/1) ... [2024-11-08 22:45:20,812 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:20" (1/1) ... [2024-11-08 22:45:20,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:20" (1/1) ... [2024-11-08 22:45:20,826 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:20" (1/1) ... [2024-11-08 22:45:20,836 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:20" (1/1) ... [2024-11-08 22:45:20,837 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:20" (1/1) ... [2024-11-08 22:45:20,844 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:45:20,845 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:45:20,845 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:45:20,845 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:45:20,845 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:20" (1/1) ... [2024-11-08 22:45:20,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 22:45:20,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 22:45:20,881 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 22:45:20,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 22:45:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:45:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 22:45:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 22:45:20,934 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 22:45:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:45:20,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:45:21,016 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:45:21,018 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:45:36,914 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-08 22:45:36,915 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:45:36,928 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:45:36,928 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 22:45:36,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:45:36 BoogieIcfgContainer [2024-11-08 22:45:36,929 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:45:36,931 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 22:45:36,931 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 22:45:36,935 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 22:45:36,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 10:45:20" (1/3) ... [2024-11-08 22:45:36,936 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a8dd55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 10:45:36, skipping insertion in model container [2024-11-08 22:45:36,937 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:20" (2/3) ... [2024-11-08 22:45:36,937 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a8dd55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 10:45:36, skipping insertion in model container [2024-11-08 22:45:36,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:45:36" (3/3) ... [2024-11-08 22:45:36,939 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-2.i [2024-11-08 22:45:36,962 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 22:45:36,962 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 22:45:37,015 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 22:45:37,022 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;@496cb153, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 22:45:37,024 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 22:45:37,028 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 38 states have internal predecessors, (52), 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) [2024-11-08 22:45:37,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 22:45:37,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:45:37,041 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, 1, 1, 1, 1, 1, 1] [2024-11-08 22:45:37,041 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:45:37,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:45:37,047 INFO L85 PathProgramCache]: Analyzing trace with hash -2140347050, now seen corresponding path program 1 times [2024-11-08 22:45:37,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 22:45:37,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [948785209] [2024-11-08 22:45:37,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:45:37,063 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 22:45:37,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 22:45:37,066 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 22:45:37,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-08 22:45:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:37,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 22:45:37,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:45:37,725 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-08 22:45:37,725 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 22:45:37,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 22:45:37,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [948785209] [2024-11-08 22:45:37,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [948785209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:45:37,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:45:37,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 22:45:37,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724605683] [2024-11-08 22:45:37,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:45:37,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 22:45:37,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 22:45:37,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 22:45:37,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 22:45:37,767 INFO L87 Difference]: Start difference. First operand has 53 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 38 states have internal predecessors, (52), 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 14.5) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-08 22:45:37,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:45:37,800 INFO L93 Difference]: Finished difference Result 99 states and 163 transitions. [2024-11-08 22:45:37,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 22:45:37,804 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 91 [2024-11-08 22:45:37,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:45:37,813 INFO L225 Difference]: With dead ends: 99 [2024-11-08 22:45:37,813 INFO L226 Difference]: Without dead ends: 49 [2024-11-08 22:45:37,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 22:45:37,823 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 22:45:37,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 22:45:37,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-08 22:45:37,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-08 22:45:37,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 34 states have internal predecessors, (43), 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) [2024-11-08 22:45:37,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 69 transitions. [2024-11-08 22:45:37,875 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 69 transitions. Word has length 91 [2024-11-08 22:45:37,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:45:37,877 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 69 transitions. [2024-11-08 22:45:37,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-08 22:45:37,877 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 69 transitions. [2024-11-08 22:45:37,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 22:45:37,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:45:37,884 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 22:45:37,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-08 22:45:38,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 22:45:38,086 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:45:38,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:45:38,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1331715252, now seen corresponding path program 1 times [2024-11-08 22:45:38,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 22:45:38,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [629450416] [2024-11-08 22:45:38,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:45:38,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 22:45:38,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 22:45:38,089 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 22:45:38,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-08 22:45:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:38,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 22:45:38,676 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:45:39,508 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 138 proven. 9 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-11-08 22:45:39,508 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 22:45:41,011 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 27 proven. 9 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-08 22:45:41,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 22:45:41,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [629450416] [2024-11-08 22:45:41,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [629450416] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 22:45:41,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 22:45:41,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2024-11-08 22:45:41,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884820429] [2024-11-08 22:45:41,013 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 22:45:41,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 22:45:41,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 22:45:41,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 22:45:41,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-08 22:45:41,017 INFO L87 Difference]: Start difference. First operand 49 states and 69 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 22:45:47,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 22:45:51,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 22:45:55,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 22:45:56,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:45:56,398 INFO L93 Difference]: Finished difference Result 125 states and 172 transitions. [2024-11-08 22:45:56,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 22:45:56,400 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 92 [2024-11-08 22:45:56,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:45:56,402 INFO L225 Difference]: With dead ends: 125 [2024-11-08 22:45:56,402 INFO L226 Difference]: Without dead ends: 79 [2024-11-08 22:45:56,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 174 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2024-11-08 22:45:56,404 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 157 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 59 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2024-11-08 22:45:56,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 161 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 176 Invalid, 3 Unknown, 0 Unchecked, 14.8s Time] [2024-11-08 22:45:56,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-08 22:45:56,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 74. [2024-11-08 22:45:56,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 49 states have internal predecessors, (56), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-08 22:45:56,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 100 transitions. [2024-11-08 22:45:56,420 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 100 transitions. Word has length 92 [2024-11-08 22:45:56,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:45:56,421 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 100 transitions. [2024-11-08 22:45:56,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 22:45:56,422 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 100 transitions. [2024-11-08 22:45:56,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 22:45:56,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:45:56,423 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 22:45:56,448 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 (3)] Forceful destruction successful, exit code 0 [2024-11-08 22:45:56,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 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 [2024-11-08 22:45:56,625 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:45:56,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:45:56,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1161227543, now seen corresponding path program 1 times [2024-11-08 22:45:56,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 22:45:56,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [146372484] [2024-11-08 22:45:56,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:45:56,627 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 22:45:56,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 22:45:56,628 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 22:45:56,632 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 (4)] Waiting until timeout for monitored process [2024-11-08 22:45:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:57,268 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 22:45:57,278 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:46:22,353 WARN L286 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:46:33,563 WARN L286 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:46:45,249 WARN L286 SmtUtils]: Spent 6.29s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)