./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-47.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-47.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 adf480f71c98f97b1e3553d7ccd07596f803ed516785c8ed007d232ae0455bf0 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 06:45:37,753 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 06:45:37,829 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 06:45:37,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 06:45:37,837 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 06:45:37,867 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 06:45:37,867 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 06:45:37,868 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 06:45:37,868 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 06:45:37,868 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 06:45:37,869 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 06:45:37,869 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 06:45:37,873 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 06:45:37,873 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 06:45:37,873 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 06:45:37,874 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 06:45:37,877 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 06:45:37,878 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 06:45:37,878 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 06:45:37,880 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 06:45:37,880 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 06:45:37,883 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 06:45:37,883 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 06:45:37,883 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 06:45:37,883 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 06:45:37,884 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 06:45:37,884 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 06:45:37,884 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 06:45:37,885 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 06:45:37,885 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 06:45:37,886 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 06:45:37,886 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 06:45:37,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 06:45:37,887 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 06:45:37,887 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 06:45:37,887 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 06:45:37,888 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 06:45:37,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 06:45:37,888 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 06:45:37,888 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 06:45:37,888 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 06:45:37,889 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 06:45:37,889 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> adf480f71c98f97b1e3553d7ccd07596f803ed516785c8ed007d232ae0455bf0 [2024-11-20 06:45:38,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 06:45:38,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 06:45:38,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 06:45:38,152 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 06:45:38,153 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 06:45:38,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-47.i [2024-11-20 06:45:39,586 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 06:45:39,796 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 06:45:39,796 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-47.i [2024-11-20 06:45:39,804 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af69ec62d/0bb806af09ff473e9f982bb4d70ab712/FLAGeca5ceed1 [2024-11-20 06:45:39,820 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af69ec62d/0bb806af09ff473e9f982bb4d70ab712 [2024-11-20 06:45:39,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 06:45:39,825 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 06:45:39,828 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 06:45:39,828 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 06:45:39,834 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 06:45:39,835 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:45:39" (1/1) ... [2024-11-20 06:45:39,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34fd16fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:39, skipping insertion in model container [2024-11-20 06:45:39,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:45:39" (1/1) ... [2024-11-20 06:45:39,868 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 06:45:40,052 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-47.i[915,928] [2024-11-20 06:45:40,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 06:45:40,100 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 06:45:40,110 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-47.i[915,928] [2024-11-20 06:45:40,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 06:45:40,151 INFO L204 MainTranslator]: Completed translation [2024-11-20 06:45:40,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:40 WrapperNode [2024-11-20 06:45:40,152 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 06:45:40,153 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 06:45:40,153 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 06:45:40,153 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 06:45:40,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:40" (1/1) ... [2024-11-20 06:45:40,167 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:40" (1/1) ... [2024-11-20 06:45:40,187 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90 [2024-11-20 06:45:40,187 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 06:45:40,188 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 06:45:40,188 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 06:45:40,188 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 06:45:40,197 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:40" (1/1) ... [2024-11-20 06:45:40,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:40" (1/1) ... [2024-11-20 06:45:40,200 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:40" (1/1) ... [2024-11-20 06:45:40,215 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]. [2024-11-20 06:45:40,215 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:40" (1/1) ... [2024-11-20 06:45:40,216 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:40" (1/1) ... [2024-11-20 06:45:40,221 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:40" (1/1) ... [2024-11-20 06:45:40,224 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:40" (1/1) ... [2024-11-20 06:45:40,225 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:40" (1/1) ... [2024-11-20 06:45:40,226 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:40" (1/1) ... [2024-11-20 06:45:40,231 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 06:45:40,232 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 06:45:40,232 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 06:45:40,232 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 06:45:40,233 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:40" (1/1) ... [2024-11-20 06:45:40,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 06:45:40,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 06:45:40,273 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) [2024-11-20 06:45:40,276 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 [2024-11-20 06:45:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 06:45:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 06:45:40,324 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 06:45:40,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 06:45:40,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 06:45:40,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 06:45:40,398 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 06:45:40,402 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 06:45:40,657 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-20 06:45:40,657 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 06:45:40,673 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 06:45:40,674 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 06:45:40,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:45:40 BoogieIcfgContainer [2024-11-20 06:45:40,674 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 06:45:40,677 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 06:45:40,678 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 06:45:40,681 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 06:45:40,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:45:39" (1/3) ... [2024-11-20 06:45:40,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9e012d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:45:40, skipping insertion in model container [2024-11-20 06:45:40,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:40" (2/3) ... [2024-11-20 06:45:40,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9e012d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:45:40, skipping insertion in model container [2024-11-20 06:45:40,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:45:40" (3/3) ... [2024-11-20 06:45:40,685 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-47.i [2024-11-20 06:45:40,703 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 06:45:40,704 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 06:45:40,775 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 06:45:40,784 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;@2c6494ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 06:45:40,785 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 06:45:40,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-20 06:45:40,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-20 06:45:40,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:45:40,802 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:45:40,803 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:45:40,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:45:40,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1342335269, now seen corresponding path program 1 times [2024-11-20 06:45:40,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:45:40,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596562749] [2024-11-20 06:45:40,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:45:40,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:45:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:45:41,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:45:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:45:41,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 06:45:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:45:41,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 06:45:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:45:41,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 06:45:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:45:41,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-20 06:45:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:45:41,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 06:45:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:45:41,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 06:45:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:45:41,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 06:45:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:45:41,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 06:45:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:45:41,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 06:45:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:45:41,143 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-20 06:45:41,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:45:41,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596562749] [2024-11-20 06:45:41,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596562749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:45:41,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:45:41,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 06:45:41,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109902071] [2024-11-20 06:45:41,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:45:41,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 06:45:41,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:45:41,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 06:45:41,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 06:45:41,187 INFO L87 Difference]: Start difference. First operand has 41 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-20 06:45:41,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:45:41,213 INFO L93 Difference]: Finished difference Result 75 states and 120 transitions. [2024-11-20 06:45:41,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 06:45:41,216 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 69 [2024-11-20 06:45:41,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:45:41,223 INFO L225 Difference]: With dead ends: 75 [2024-11-20 06:45:41,224 INFO L226 Difference]: Without dead ends: 37 [2024-11-20 06:45:41,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 06:45:41,232 INFO L432 NwaCegarLoop]: 51 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, 51 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 [2024-11-20 06:45:41,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 06:45:41,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-20 06:45:41,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-20 06:45:41,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-20 06:45:41,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2024-11-20 06:45:41,296 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 69 [2024-11-20 06:45:41,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:45:41,297 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2024-11-20 06:45:41,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-20 06:45:41,297 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2024-11-20 06:45:41,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-20 06:45:41,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:45:41,316 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:45:41,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 06:45:41,319 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:45:41,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:45:41,320 INFO L85 PathProgramCache]: Analyzing trace with hash 645508055, now seen corresponding path program 1 times [2024-11-20 06:45:41,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:45:41,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772776396] [2024-11-20 06:45:41,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:45:41,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:45:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 06:45:41,583 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 06:45:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 06:45:41,689 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 06:45:41,689 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 06:45:41,691 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-20 06:45:41,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 06:45:41,696 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-20 06:45:41,752 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 06:45:41,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:45:41 BoogieIcfgContainer [2024-11-20 06:45:41,755 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 06:45:41,756 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 06:45:41,757 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 06:45:41,757 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 06:45:41,758 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:45:40" (3/4) ... [2024-11-20 06:45:41,760 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-20 06:45:41,761 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 06:45:41,762 INFO L158 Benchmark]: Toolchain (without parser) took 1937.03ms. Allocated memory is still 186.6MB. Free memory was 155.4MB in the beginning and 126.1MB in the end (delta: 29.2MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2024-11-20 06:45:41,763 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory was 86.8MB in the beginning and 86.7MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 06:45:41,765 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.26ms. Allocated memory is still 186.6MB. Free memory was 155.4MB in the beginning and 140.0MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-20 06:45:41,765 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.20ms. Allocated memory is still 186.6MB. Free memory was 140.0MB in the beginning and 137.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 06:45:41,765 INFO L158 Benchmark]: Boogie Preprocessor took 43.87ms. Allocated memory is still 186.6MB. Free memory was 137.9MB in the beginning and 135.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 06:45:41,766 INFO L158 Benchmark]: RCFGBuilder took 442.32ms. Allocated memory is still 186.6MB. Free memory was 135.8MB in the beginning and 122.2MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-20 06:45:41,766 INFO L158 Benchmark]: TraceAbstraction took 1078.51ms. Allocated memory is still 186.6MB. Free memory was 121.1MB in the beginning and 126.1MB in the end (delta: -5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 06:45:41,766 INFO L158 Benchmark]: Witness Printer took 5.58ms. Allocated memory is still 186.6MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 06:45:41,771 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 125.8MB. Free memory was 86.8MB in the beginning and 86.7MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.26ms. Allocated memory is still 186.6MB. Free memory was 155.4MB in the beginning and 140.0MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.20ms. Allocated memory is still 186.6MB. Free memory was 140.0MB in the beginning and 137.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.87ms. Allocated memory is still 186.6MB. Free memory was 137.9MB in the beginning and 135.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 442.32ms. Allocated memory is still 186.6MB. Free memory was 135.8MB in the beginning and 122.2MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1078.51ms. Allocated memory is still 186.6MB. Free memory was 121.1MB in the beginning and 126.1MB in the end (delta: -5.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.58ms. Allocated memory is still 186.6MB. Free memory is still 126.1MB. 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 81, overapproximation of someUnaryDOUBLEoperation at line 24, overapproximation of someBinaryDOUBLEComparisonOperation at line 81, overapproximation of someUnaryFLOAToperation at line 49, overapproximation of someBinaryArithmeticFLOAToperation at line 49. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 24.575; [L23] double var_1_8 = 128.5; [L24] float var_1_9 = -0.5; [L25] float var_1_10 = 200.4; [L26] unsigned long int var_1_11 = 4; [L27] unsigned char var_1_12 = 1; [L28] unsigned long int var_1_13 = 3607105345; [L29] signed char var_1_14 = 0; [L30] signed char var_1_15 = 0; [L31] signed char var_1_16 = 16; [L32] double last_1_var_1_1 = 24.575; [L33] float last_1_var_1_9 = -0.5; VAL [isInitial=0, last_1_var_1_1=983/40, var_1_10=1002/5, var_1_11=4, var_1_12=1, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_8=257/2] [L85] isInitial = 1 [L86] FCALL initially() [L87] COND TRUE 1 [L88] CALL updateLastVariables() [L77] last_1_var_1_1 = var_1_1 [L78] last_1_var_1_9 = var_1_9 VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_10=1002/5, var_1_11=4, var_1_12=1, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_8=257/2, var_1_9=4294967301] [L88] RET updateLastVariables() [L89] CALL updateVariables() [L59] var_1_8 = __VERIFIER_nondet_double() [L60] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_10=1002/5, var_1_11=4, var_1_12=1, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_10=1002/5, var_1_11=4, var_1_12=1, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L60] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_10=1002/5, var_1_11=4, var_1_12=1, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L61] var_1_10 = __VERIFIER_nondet_float() [L62] CALL assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=1, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=1, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L62] RET assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=1, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L63] var_1_12 = __VERIFIER_nondet_uchar() [L64] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L64] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L65] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L65] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L66] var_1_13 = __VERIFIER_nondet_ulong() [L67] CALL assume_abort_if_not(var_1_13 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L67] RET assume_abort_if_not(var_1_13 >= 2147483647) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L68] CALL assume_abort_if_not(var_1_13 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L68] RET assume_abort_if_not(var_1_13 <= 4294967294) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L69] var_1_15 = __VERIFIER_nondet_char() [L70] CALL assume_abort_if_not(var_1_15 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L70] RET assume_abort_if_not(var_1_15 >= -1) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L71] CALL assume_abort_if_not(var_1_15 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L71] RET assume_abort_if_not(var_1_15 <= 126) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L72] var_1_16 = __VERIFIER_nondet_char() [L73] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=1, var_1_1=983/40, var_1_9=4294967301] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=1, var_1_1=983/40, var_1_9=4294967301] [L73] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=1, var_1_1=983/40, var_1_9=4294967301] [L74] CALL assume_abort_if_not(var_1_16 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=1, var_1_1=983/40, var_1_9=4294967301] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=1, var_1_1=983/40, var_1_9=4294967301] [L74] RET assume_abort_if_not(var_1_16 <= 126) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=1, var_1_1=983/40, var_1_9=4294967301] [L89] RET updateVariables() [L90] CALL step() [L37] COND FALSE !(((((last_1_var_1_9) > (last_1_var_1_9)) ? (last_1_var_1_9) : (last_1_var_1_9))) >= last_1_var_1_1) [L42] var_1_14 = var_1_15 VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=126, var_1_15=126, var_1_16=1, var_1_1=983/40, var_1_9=4294967301] [L44] COND FALSE !(\read(var_1_12)) [L47] var_1_11 = ((((var_1_14) > ((var_1_13 - (var_1_14 + 32u)))) ? (var_1_14) : ((var_1_13 - (var_1_14 + 32u))))) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4294967136, var_1_12=0, var_1_13=4294967294, var_1_14=126, var_1_15=126, var_1_16=1, var_1_1=983/40, var_1_9=4294967301] [L49] var_1_9 = ((((var_1_10 - ((((10000.4f) < 0 ) ? -(10000.4f) : (10000.4f)))) < 0 ) ? -(var_1_10 - ((((10000.4f) < 0 ) ? -(10000.4f) : (10000.4f)))) : (var_1_10 - ((((10000.4f) < 0 ) ? -(10000.4f) : (10000.4f)))))) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4294967136, var_1_12=0, var_1_13=4294967294, var_1_14=126, var_1_15=126, var_1_16=1, var_1_1=983/40, var_1_9=4294967299] [L50] COND FALSE !(var_1_9 <= var_1_9) [L55] var_1_1 = var_1_8 VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4294967136, var_1_12=0, var_1_13=4294967294, var_1_14=126, var_1_15=126, var_1_16=1, var_1_1=4294967300, var_1_8=4294967300, var_1_9=4294967299] [L90] RET step() [L91] CALL, EXPR property() [L81-L82] return ((((var_1_9 <= var_1_9) ? (((var_1_11 + var_1_11) >= (var_1_14 + var_1_14)) ? (var_1_1 == ((double) var_1_8)) : 1) : (var_1_1 == ((double) var_1_8))) && (var_1_9 == ((float) ((((var_1_10 - ((((10000.4f) < 0 ) ? -(10000.4f) : (10000.4f)))) < 0 ) ? -(var_1_10 - ((((10000.4f) < 0 ) ? -(10000.4f) : (10000.4f)))) : (var_1_10 - ((((10000.4f) < 0 ) ? -(10000.4f) : (10000.4f))))))))) && (var_1_12 ? (var_1_11 == ((unsigned long int) ((((var_1_14) < (var_1_14)) ? (var_1_14) : (var_1_14))))) : (var_1_11 == ((unsigned long int) ((((var_1_14) > ((var_1_13 - (var_1_14 + 32u)))) ? (var_1_14) : ((var_1_13 - (var_1_14 + 32u))))))))) && ((((((last_1_var_1_9) > (last_1_var_1_9)) ? (last_1_var_1_9) : (last_1_var_1_9))) >= last_1_var_1_1) ? (var_1_12 ? (var_1_14 == ((signed char) (var_1_15 - var_1_16))) : 1) : (var_1_14 == ((signed char) var_1_15))) ; VAL [\result=0, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4294967136, var_1_12=0, var_1_13=4294967294, var_1_14=126, var_1_15=126, var_1_16=1, var_1_1=4294967300, var_1_8=4294967300, var_1_9=4294967299] [L91] RET, EXPR property() [L91] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4294967136, var_1_12=0, var_1_13=4294967294, var_1_14=126, var_1_15=126, var_1_16=1, var_1_1=4294967300, var_1_8=4294967300, var_1_9=4294967299] [L19] reach_error() VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4294967136, var_1_12=0, var_1_13=4294967294, var_1_14=126, var_1_15=126, var_1_16=1, var_1_1=4294967300, var_1_8=4294967300, var_1_9=4294967299] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 51 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 180/180 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 [2024-11-20 06:45:41,797 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/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-47.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 adf480f71c98f97b1e3553d7ccd07596f803ed516785c8ed007d232ae0455bf0 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 06:45:43,991 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 06:45:44,077 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-20 06:45:44,082 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 06:45:44,083 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 06:45:44,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 06:45:44,117 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 06:45:44,118 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 06:45:44,118 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 06:45:44,118 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 06:45:44,119 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 06:45:44,119 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 06:45:44,120 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 06:45:44,120 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 06:45:44,122 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 06:45:44,122 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 06:45:44,124 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 06:45:44,124 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 06:45:44,124 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 06:45:44,126 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 06:45:44,127 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 06:45:44,127 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 06:45:44,128 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 06:45:44,129 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 06:45:44,129 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-20 06:45:44,129 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 06:45:44,129 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-20 06:45:44,130 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 06:45:44,130 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 06:45:44,130 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 06:45:44,131 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 06:45:44,131 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 06:45:44,131 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 06:45:44,131 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 06:45:44,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 06:45:44,132 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 06:45:44,132 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 06:45:44,133 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 06:45:44,133 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-20 06:45:44,134 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-20 06:45:44,134 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 06:45:44,134 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 06:45:44,134 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 06:45:44,135 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 06:45:44,135 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> adf480f71c98f97b1e3553d7ccd07596f803ed516785c8ed007d232ae0455bf0 [2024-11-20 06:45:44,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 06:45:44,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 06:45:44,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 06:45:44,525 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 06:45:44,526 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 06:45:44,527 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-47.i [2024-11-20 06:45:46,056 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 06:45:46,279 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 06:45:46,280 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-47.i [2024-11-20 06:45:46,294 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa3093197/1c948d9712844331b195b51d1e2e5ee9/FLAG97c233d1f [2024-11-20 06:45:46,312 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa3093197/1c948d9712844331b195b51d1e2e5ee9 [2024-11-20 06:45:46,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 06:45:46,317 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 06:45:46,321 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 06:45:46,321 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 06:45:46,327 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 06:45:46,327 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:45:46" (1/1) ... [2024-11-20 06:45:46,329 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@173c2799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:46, skipping insertion in model container [2024-11-20 06:45:46,329 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:45:46" (1/1) ... [2024-11-20 06:45:46,353 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 06:45:46,543 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-47.i[915,928] [2024-11-20 06:45:46,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 06:45:46,612 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 06:45:46,625 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-47.i[915,928] [2024-11-20 06:45:46,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 06:45:46,685 INFO L204 MainTranslator]: Completed translation [2024-11-20 06:45:46,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:46 WrapperNode [2024-11-20 06:45:46,686 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 06:45:46,687 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 06:45:46,687 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 06:45:46,687 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 06:45:46,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:46" (1/1) ... [2024-11-20 06:45:46,711 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:46" (1/1) ... [2024-11-20 06:45:46,741 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 88 [2024-11-20 06:45:46,745 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 06:45:46,746 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 06:45:46,746 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 06:45:46,746 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 06:45:46,757 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:46" (1/1) ... [2024-11-20 06:45:46,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:46" (1/1) ... [2024-11-20 06:45:46,760 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:46" (1/1) ... [2024-11-20 06:45:46,775 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]. [2024-11-20 06:45:46,779 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:46" (1/1) ... [2024-11-20 06:45:46,779 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:46" (1/1) ... [2024-11-20 06:45:46,795 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:46" (1/1) ... [2024-11-20 06:45:46,801 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:46" (1/1) ... [2024-11-20 06:45:46,803 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:46" (1/1) ... [2024-11-20 06:45:46,805 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:46" (1/1) ... [2024-11-20 06:45:46,808 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 06:45:46,809 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 06:45:46,809 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 06:45:46,809 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 06:45:46,810 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:46" (1/1) ... [2024-11-20 06:45:46,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 06:45:46,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 06:45:46,849 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) [2024-11-20 06:45:46,855 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 [2024-11-20 06:45:46,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 06:45:46,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-20 06:45:46,898 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 06:45:46,899 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 06:45:46,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 06:45:46,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 06:45:46,972 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 06:45:46,975 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 06:45:47,620 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-20 06:45:47,620 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 06:45:47,638 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 06:45:47,639 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 06:45:47,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:45:47 BoogieIcfgContainer [2024-11-20 06:45:47,640 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 06:45:47,642 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 06:45:47,642 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 06:45:47,645 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 06:45:47,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:45:46" (1/3) ... [2024-11-20 06:45:47,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27cef6b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:45:47, skipping insertion in model container [2024-11-20 06:45:47,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:46" (2/3) ... [2024-11-20 06:45:47,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27cef6b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:45:47, skipping insertion in model container [2024-11-20 06:45:47,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:45:47" (3/3) ... [2024-11-20 06:45:47,650 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-47.i [2024-11-20 06:45:47,668 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 06:45:47,668 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 06:45:47,739 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 06:45:47,746 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;@3a0b3490, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 06:45:47,747 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 06:45:47,751 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-20 06:45:47,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-20 06:45:47,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:45:47,760 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:45:47,761 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:45:47,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:45:47,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1342335269, now seen corresponding path program 1 times [2024-11-20 06:45:47,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 06:45:47,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [177274567] [2024-11-20 06:45:47,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:45:47,795 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 [2024-11-20 06:45:47,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 06:45:47,798 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) [2024-11-20 06:45:47,799 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 [2024-11-20 06:45:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:45:47,992 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-20 06:45:47,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 06:45:48,034 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-20 06:45:48,034 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 06:45:48,036 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 06:45:48,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [177274567] [2024-11-20 06:45:48,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [177274567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:45:48,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:45:48,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 06:45:48,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190598580] [2024-11-20 06:45:48,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:45:48,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 06:45:48,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 06:45:48,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 06:45:48,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 06:45:48,070 INFO L87 Difference]: Start difference. First operand has 41 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-20 06:45:48,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:45:48,097 INFO L93 Difference]: Finished difference Result 75 states and 120 transitions. [2024-11-20 06:45:48,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 06:45:48,099 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 69 [2024-11-20 06:45:48,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:45:48,106 INFO L225 Difference]: With dead ends: 75 [2024-11-20 06:45:48,106 INFO L226 Difference]: Without dead ends: 37 [2024-11-20 06:45:48,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 06:45:48,116 INFO L432 NwaCegarLoop]: 51 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, 51 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 [2024-11-20 06:45:48,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 06:45:48,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-20 06:45:48,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-20 06:45:48,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-20 06:45:48,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2024-11-20 06:45:48,161 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 69 [2024-11-20 06:45:48,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:45:48,162 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2024-11-20 06:45:48,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-20 06:45:48,163 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2024-11-20 06:45:48,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-20 06:45:48,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:45:48,166 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:45:48,175 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 [2024-11-20 06:45:48,367 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 [2024-11-20 06:45:48,368 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:45:48,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:45:48,368 INFO L85 PathProgramCache]: Analyzing trace with hash 645508055, now seen corresponding path program 1 times [2024-11-20 06:45:48,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 06:45:48,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515454447] [2024-11-20 06:45:48,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:45:48,370 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 [2024-11-20 06:45:48,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 06:45:48,371 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) [2024-11-20 06:45:48,372 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 [2024-11-20 06:45:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:45:48,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 06:45:48,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 06:45:52,226 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 43 proven. 24 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-20 06:45:52,227 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 06:46:02,039 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-20 06:46:02,039 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 06:46:02,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515454447] [2024-11-20 06:46:02,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [515454447] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 06:46:02,041 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 06:46:02,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-20 06:46:02,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983132921] [2024-11-20 06:46:02,042 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 06:46:02,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 06:46:02,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 06:46:02,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 06:46:02,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-20 06:46:02,046 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-20 06:46:13,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-20 06:46:22,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-20 06:46:28,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-20 06:46:29,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-20 06:46:31,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-20 06:46:33,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-20 06:46:35,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-20 06:46:36,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:46:36,616 INFO L93 Difference]: Finished difference Result 109 states and 147 transitions. [2024-11-20 06:46:36,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 06:46:36,630 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 69 [2024-11-20 06:46:36,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:46:36,632 INFO L225 Difference]: With dead ends: 109 [2024-11-20 06:46:36,632 INFO L226 Difference]: Without dead ends: 75 [2024-11-20 06:46:36,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=197, Invalid=403, Unknown=0, NotChecked=0, Total=600 [2024-11-20 06:46:36,635 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 147 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2024-11-20 06:46:36,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 133 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 19.3s Time] [2024-11-20 06:46:36,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-20 06:46:36,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 41. [2024-11-20 06:46:36,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-20 06:46:36,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2024-11-20 06:46:36,656 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 53 transitions. Word has length 69 [2024-11-20 06:46:36,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:46:36,657 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 53 transitions. [2024-11-20 06:46:36,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-20 06:46:36,657 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2024-11-20 06:46:36,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-20 06:46:36,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:46:36,659 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:46:36,666 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-20 06:46:36,859 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 [2024-11-20 06:46:36,860 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:46:36,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:46:36,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1699647086, now seen corresponding path program 1 times [2024-11-20 06:46:36,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 06:46:36,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [753409845] [2024-11-20 06:46:36,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:46:36,861 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 [2024-11-20 06:46:36,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 06:46:36,865 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) [2024-11-20 06:46:36,867 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 [2024-11-20 06:46:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:46:36,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-20 06:46:36,988 INFO L278 TraceCheckSpWp]: Computing forward predicates...