./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_variablewrapping_normal_file-0.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-0.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f542c31fef0cbf1b152079c560a5961cfda40d4d893630cfcc2de70dbcc4c8b6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 11:01:29,147 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 11:01:29,230 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 11:01:29,237 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 11:01:29,238 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 11:01:29,264 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 11:01:29,265 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 11:01:29,266 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 11:01:29,266 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 11:01:29,267 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 11:01:29,267 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 11:01:29,268 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 11:01:29,268 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 11:01:29,269 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 11:01:29,271 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 11:01:29,272 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 11:01:29,272 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 11:01:29,272 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 11:01:29,273 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 11:01:29,273 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 11:01:29,273 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 11:01:29,274 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 11:01:29,274 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 11:01:29,274 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 11:01:29,274 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 11:01:29,275 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 11:01:29,275 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 11:01:29,275 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 11:01:29,276 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 11:01:29,276 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 11:01:29,276 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 11:01:29,276 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 11:01:29,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:01:29,277 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 11:01:29,277 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 11:01:29,278 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 11:01:29,278 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 11:01:29,278 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 11:01:29,279 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 11:01:29,279 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 11:01:29,279 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 11:01:29,282 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 11:01:29,282 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f542c31fef0cbf1b152079c560a5961cfda40d4d893630cfcc2de70dbcc4c8b6 [2024-10-24 11:01:29,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 11:01:29,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 11:01:29,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 11:01:29,574 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 11:01:29,574 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 11:01:29,576 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-0.i [2024-10-24 11:01:31,205 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 11:01:31,422 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 11:01:31,423 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-0.i [2024-10-24 11:01:31,434 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da918ffa5/2bb70f8c1c8941d6859a22eeaa1ef619/FLAG95e33a276 [2024-10-24 11:01:31,784 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da918ffa5/2bb70f8c1c8941d6859a22eeaa1ef619 [2024-10-24 11:01:31,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 11:01:31,790 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 11:01:31,791 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 11:01:31,791 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 11:01:31,800 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 11:01:31,801 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:01:31" (1/1) ... [2024-10-24 11:01:31,802 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cbef246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:31, skipping insertion in model container [2024-10-24 11:01:31,802 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:01:31" (1/1) ... [2024-10-24 11:01:31,829 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 11:01:32,013 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-0.i[912,925] [2024-10-24 11:01:32,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:01:32,076 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 11:01:32,090 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-0.i[912,925] [2024-10-24 11:01:32,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:01:32,139 INFO L204 MainTranslator]: Completed translation [2024-10-24 11:01:32,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:32 WrapperNode [2024-10-24 11:01:32,139 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 11:01:32,141 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 11:01:32,141 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 11:01:32,141 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 11:01:32,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:32" (1/1) ... [2024-10-24 11:01:32,160 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:32" (1/1) ... [2024-10-24 11:01:32,184 INFO L138 Inliner]: procedures = 26, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2024-10-24 11:01:32,185 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 11:01:32,186 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 11:01:32,187 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 11:01:32,187 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 11:01:32,199 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:32" (1/1) ... [2024-10-24 11:01:32,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:32" (1/1) ... [2024-10-24 11:01:32,202 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:32" (1/1) ... [2024-10-24 11:01:32,216 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 11:01:32,216 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:32" (1/1) ... [2024-10-24 11:01:32,216 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:32" (1/1) ... [2024-10-24 11:01:32,225 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:32" (1/1) ... [2024-10-24 11:01:32,230 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:32" (1/1) ... [2024-10-24 11:01:32,232 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:32" (1/1) ... [2024-10-24 11:01:32,238 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:32" (1/1) ... [2024-10-24 11:01:32,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 11:01:32,245 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 11:01:32,245 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 11:01:32,246 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 11:01:32,247 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:32" (1/1) ... [2024-10-24 11:01:32,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:01:32,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:01:32,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 11:01:32,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 11:01:32,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 11:01:32,319 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 11:01:32,319 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 11:01:32,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 11:01:32,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 11:01:32,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 11:01:32,382 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 11:01:32,385 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 11:01:32,717 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-10-24 11:01:32,718 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 11:01:32,775 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 11:01:32,779 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 11:01:32,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:01:32 BoogieIcfgContainer [2024-10-24 11:01:32,780 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 11:01:32,782 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 11:01:32,782 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 11:01:32,786 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 11:01:32,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:01:31" (1/3) ... [2024-10-24 11:01:32,787 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b332cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:01:32, skipping insertion in model container [2024-10-24 11:01:32,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:32" (2/3) ... [2024-10-24 11:01:32,787 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b332cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:01:32, skipping insertion in model container [2024-10-24 11:01:32,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:01:32" (3/3) ... [2024-10-24 11:01:32,788 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-0.i [2024-10-24 11:01:32,803 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 11:01:32,803 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 11:01:32,861 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 11:01:32,867 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;@7d1ef0f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 11:01:32,868 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 11:01:32,872 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 25 states have internal predecessors, (38), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-24 11:01:32,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-24 11:01:32,883 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:01:32,883 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:01:32,884 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:01:32,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:01:32,889 INFO L85 PathProgramCache]: Analyzing trace with hash 251583524, now seen corresponding path program 1 times [2024-10-24 11:01:32,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:01:32,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383527227] [2024-10-24 11:01:32,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:01:32,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:01:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:01:33,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:01:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:01:33,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 11:01:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:01:33,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 11:01:33,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:01:33,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 11:01:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:01:33,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 11:01:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:01:33,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 11:01:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:01:33,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 11:01:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:01:33,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:01:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:01:33,194 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-24 11:01:33,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:01:33,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383527227] [2024-10-24 11:01:33,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383527227] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:01:33,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:01:33,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 11:01:33,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653493820] [2024-10-24 11:01:33,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:01:33,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 11:01:33,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:01:33,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 11:01:33,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:01:33,234 INFO L87 Difference]: Start difference. First operand has 35 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 25 states have internal predecessors, (38), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 11:01:33,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:01:33,276 INFO L93 Difference]: Finished difference Result 66 states and 112 transitions. [2024-10-24 11:01:33,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 11:01:33,283 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 54 [2024-10-24 11:01:33,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:01:33,293 INFO L225 Difference]: With dead ends: 66 [2024-10-24 11:01:33,293 INFO L226 Difference]: Without dead ends: 32 [2024-10-24 11:01:33,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:01:33,302 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:01:33,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:01:33,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-10-24 11:01:33,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-10-24 11:01:33,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-24 11:01:33,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 45 transitions. [2024-10-24 11:01:33,349 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 45 transitions. Word has length 54 [2024-10-24 11:01:33,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:01:33,349 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 45 transitions. [2024-10-24 11:01:33,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 11:01:33,351 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 45 transitions. [2024-10-24 11:01:33,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-24 11:01:33,353 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:01:33,353 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:01:33,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 11:01:33,354 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:01:33,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:01:33,355 INFO L85 PathProgramCache]: Analyzing trace with hash 568314856, now seen corresponding path program 1 times [2024-10-24 11:01:33,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:01:33,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624367540] [2024-10-24 11:01:33,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:01:33,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:01:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 11:01:33,426 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 11:01:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 11:01:33,515 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 11:01:33,516 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 11:01:33,520 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-24 11:01:33,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 11:01:33,528 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-24 11:01:33,588 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 11:01:33,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:01:33 BoogieIcfgContainer [2024-10-24 11:01:33,593 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 11:01:33,593 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 11:01:33,593 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 11:01:33,594 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 11:01:33,596 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:01:32" (3/4) ... [2024-10-24 11:01:33,598 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 11:01:33,599 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 11:01:33,599 INFO L158 Benchmark]: Toolchain (without parser) took 1809.85ms. Allocated memory is still 159.4MB. Free memory was 90.3MB in the beginning and 81.7MB in the end (delta: 8.5MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2024-10-24 11:01:33,600 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 11:01:33,600 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.83ms. Allocated memory is still 159.4MB. Free memory was 90.0MB in the beginning and 76.3MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 11:01:33,601 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.82ms. Allocated memory is still 159.4MB. Free memory was 76.3MB in the beginning and 74.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 11:01:33,601 INFO L158 Benchmark]: Boogie Preprocessor took 54.90ms. Allocated memory is still 159.4MB. Free memory was 74.3MB in the beginning and 71.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 11:01:33,601 INFO L158 Benchmark]: RCFGBuilder took 534.54ms. Allocated memory is still 159.4MB. Free memory was 71.6MB in the beginning and 122.3MB in the end (delta: -50.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 11:01:33,602 INFO L158 Benchmark]: TraceAbstraction took 811.09ms. Allocated memory is still 159.4MB. Free memory was 121.6MB in the beginning and 81.7MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-10-24 11:01:33,602 INFO L158 Benchmark]: Witness Printer took 5.35ms. Allocated memory is still 159.4MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 11:01:33,604 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.83ms. Allocated memory is still 159.4MB. Free memory was 90.0MB in the beginning and 76.3MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.82ms. Allocated memory is still 159.4MB. Free memory was 76.3MB in the beginning and 74.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.90ms. Allocated memory is still 159.4MB. Free memory was 74.3MB in the beginning and 71.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 534.54ms. Allocated memory is still 159.4MB. Free memory was 71.6MB in the beginning and 122.3MB in the end (delta: -50.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 811.09ms. Allocated memory is still 159.4MB. Free memory was 121.6MB in the beginning and 81.7MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 5.35ms. Allocated memory is still 159.4MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 89, overapproximation of someBinaryArithmeticDOUBLEoperation at line 48. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 25.8; [L23] unsigned char var_1_2 = 1; [L24] double var_1_3 = 128.2; [L25] double var_1_4 = 15.4; [L26] double var_1_5 = 5.25; [L27] unsigned char var_1_9 = 1; [L28] unsigned char var_1_10 = 100; [L29] unsigned char var_1_12 = 1; [L30] unsigned short int var_1_13 = 5; [L31] double last_1_var_1_5 = 5.25; [L32] unsigned char last_1_var_1_10 = 100; [L33] unsigned short int last_1_var_1_13 = 5; [L93] isInitial = 1 [L94] FCALL initially() [L95] COND TRUE 1 [L96] CALL updateLastVariables() [L84] last_1_var_1_5 = var_1_5 [L85] last_1_var_1_10 = var_1_10 [L86] last_1_var_1_13 = var_1_13 [L96] RET updateLastVariables() [L97] CALL updateVariables() [L69] var_1_2 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_9=1] [L70] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_9=1] [L71] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=0, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=0, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_9=1] [L71] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=0, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_9=1] [L72] var_1_3 = __VERIFIER_nondet_double() [L73] CALL assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=0, var_1_4=77/5, var_1_5=21/4, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=0, var_1_4=77/5, var_1_5=21/4, var_1_9=1] [L73] RET assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=0, var_1_4=77/5, var_1_5=21/4, var_1_9=1] [L74] var_1_4 = __VERIFIER_nondet_double() [L75] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_9=1] [L75] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_9=1] [L76] var_1_9 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=0, var_1_5=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=0, var_1_5=21/4] [L77] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=0, var_1_5=21/4] [L78] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_9=0] [L78] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_9=0] [L79] var_1_12 = __VERIFIER_nondet_uchar() [L80] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_13=5, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_13=5, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_9=0] [L80] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_13=5, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_9=0] [L81] CALL assume_abort_if_not(var_1_12 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=254, var_1_13=5, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=254, var_1_13=5, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_9=0] [L81] RET assume_abort_if_not(var_1_12 <= 254) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=254, var_1_13=5, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_9=0] [L97] RET updateVariables() [L98] CALL step() [L37] COND FALSE !(\read(var_1_9)) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=254, var_1_13=5, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_9=0] [L42] COND FALSE !((last_1_var_1_13 + last_1_var_1_13) < last_1_var_1_13) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=254, var_1_13=5, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_9=0] [L47] COND TRUE ! var_1_2 [L48] var_1_1 = (var_1_3 - var_1_4) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=254, var_1_13=5, var_1_2=0, var_1_5=21/4, var_1_9=0] [L52] COND FALSE !((var_1_3 + (var_1_4 + var_1_1)) != var_1_1) [L65] var_1_5 = var_1_3 VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=254, var_1_13=5, var_1_2=0, var_1_3=259, var_1_5=259, var_1_9=0] [L98] RET step() [L99] CALL, EXPR property() [L89-L90] return ((((! var_1_2) ? (var_1_1 == ((double) (var_1_3 - var_1_4))) : (var_1_1 == ((double) ((((16.2) < (var_1_3)) ? (16.2) : (var_1_3)))))) && (((var_1_3 + (var_1_4 + var_1_1)) != var_1_1) ? (var_1_2 ? (((- var_1_13) <= var_1_10) ? (var_1_9 ? (var_1_5 == ((double) var_1_4)) : 1) : (var_1_5 == ((double) var_1_3))) : (var_1_5 == ((double) var_1_3))) : (var_1_5 == ((double) var_1_3)))) && (((last_1_var_1_13 + last_1_var_1_13) < last_1_var_1_13) ? ((last_1_var_1_13 > last_1_var_1_13) ? (var_1_10 == ((unsigned char) var_1_12)) : 1) : 1)) && (var_1_9 ? (((var_1_4 * (var_1_3 - 5.3)) <= last_1_var_1_5) ? (var_1_13 == ((unsigned short int) last_1_var_1_10)) : 1) : 1) ; [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=254, var_1_13=5, var_1_2=0, var_1_3=259, var_1_5=259, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=254, var_1_13=5, var_1_2=0, var_1_3=259, var_1_5=259, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 42 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 53 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 112/112 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-24 11:01:33,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-0.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f542c31fef0cbf1b152079c560a5961cfda40d4d893630cfcc2de70dbcc4c8b6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 11:01:35,904 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 11:01:35,994 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-24 11:01:36,000 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 11:01:36,001 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 11:01:36,035 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 11:01:36,037 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 11:01:36,038 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 11:01:36,039 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 11:01:36,039 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 11:01:36,040 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 11:01:36,040 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 11:01:36,041 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 11:01:36,041 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 11:01:36,043 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 11:01:36,044 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 11:01:36,044 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 11:01:36,044 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 11:01:36,044 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 11:01:36,045 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 11:01:36,045 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 11:01:36,049 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 11:01:36,049 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 11:01:36,050 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 11:01:36,050 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 11:01:36,050 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 11:01:36,050 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 11:01:36,050 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 11:01:36,051 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 11:01:36,051 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 11:01:36,051 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 11:01:36,051 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 11:01:36,051 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 11:01:36,052 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 11:01:36,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:01:36,053 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 11:01:36,053 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 11:01:36,054 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 11:01:36,054 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 11:01:36,054 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 11:01:36,055 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 11:01:36,055 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 11:01:36,056 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 11:01:36,056 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 11:01:36,056 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 11:01:36,057 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f542c31fef0cbf1b152079c560a5961cfda40d4d893630cfcc2de70dbcc4c8b6 [2024-10-24 11:01:36,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 11:01:36,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 11:01:36,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 11:01:36,428 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 11:01:36,429 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 11:01:36,430 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-0.i [2024-10-24 11:01:38,047 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 11:01:38,285 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 11:01:38,286 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-0.i [2024-10-24 11:01:38,294 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f750391ef/6838bde8655b49468ad57757043947d1/FLAG8018cd7e4 [2024-10-24 11:01:38,644 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f750391ef/6838bde8655b49468ad57757043947d1 [2024-10-24 11:01:38,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 11:01:38,647 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 11:01:38,648 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 11:01:38,648 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 11:01:38,654 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 11:01:38,654 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:01:38" (1/1) ... [2024-10-24 11:01:38,657 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73606ee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:38, skipping insertion in model container [2024-10-24 11:01:38,658 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:01:38" (1/1) ... [2024-10-24 11:01:38,681 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 11:01:38,884 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-0.i[912,925] [2024-10-24 11:01:38,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:01:38,955 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 11:01:38,967 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-0.i[912,925] [2024-10-24 11:01:38,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:01:39,024 INFO L204 MainTranslator]: Completed translation [2024-10-24 11:01:39,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:39 WrapperNode [2024-10-24 11:01:39,025 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 11:01:39,028 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 11:01:39,028 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 11:01:39,028 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 11:01:39,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:39" (1/1) ... [2024-10-24 11:01:39,053 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:39" (1/1) ... [2024-10-24 11:01:39,085 INFO L138 Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2024-10-24 11:01:39,087 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 11:01:39,088 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 11:01:39,089 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 11:01:39,090 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 11:01:39,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:39" (1/1) ... [2024-10-24 11:01:39,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:39" (1/1) ... [2024-10-24 11:01:39,105 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:39" (1/1) ... [2024-10-24 11:01:39,126 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 11:01:39,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:39" (1/1) ... [2024-10-24 11:01:39,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:39" (1/1) ... [2024-10-24 11:01:39,137 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:39" (1/1) ... [2024-10-24 11:01:39,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:39" (1/1) ... [2024-10-24 11:01:39,148 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:39" (1/1) ... [2024-10-24 11:01:39,150 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:39" (1/1) ... [2024-10-24 11:01:39,156 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 11:01:39,158 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 11:01:39,158 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 11:01:39,158 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 11:01:39,159 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:39" (1/1) ... [2024-10-24 11:01:39,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:01:39,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:01:39,194 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 11:01:39,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 11:01:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 11:01:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 11:01:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 11:01:39,247 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 11:01:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 11:01:39,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 11:01:39,339 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 11:01:39,341 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 11:01:53,029 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-10-24 11:01:53,032 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 11:01:53,094 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 11:01:53,094 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 11:01:53,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:01:53 BoogieIcfgContainer [2024-10-24 11:01:53,095 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 11:01:53,097 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 11:01:53,097 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 11:01:53,101 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 11:01:53,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:01:38" (1/3) ... [2024-10-24 11:01:53,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6403e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:01:53, skipping insertion in model container [2024-10-24 11:01:53,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:01:39" (2/3) ... [2024-10-24 11:01:53,103 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6403e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:01:53, skipping insertion in model container [2024-10-24 11:01:53,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:01:53" (3/3) ... [2024-10-24 11:01:53,104 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-0.i [2024-10-24 11:01:53,121 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 11:01:53,121 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 11:01:53,190 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 11:01:53,199 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;@4b9c3549, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 11:01:53,200 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 11:01:53,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 25 states have internal predecessors, (38), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-24 11:01:53,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-24 11:01:53,216 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:01:53,216 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:01:53,217 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:01:53,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:01:53,224 INFO L85 PathProgramCache]: Analyzing trace with hash 251583524, now seen corresponding path program 1 times [2024-10-24 11:01:53,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 11:01:53,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1078983561] [2024-10-24 11:01:53,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:01:53,240 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 11:01:53,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 11:01:53,244 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 11:01:53,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-24 11:01:53,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:01:53,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 11:01:53,866 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:01:53,894 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-10-24 11:01:53,894 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 11:01:53,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 11:01:53,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1078983561] [2024-10-24 11:01:53,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1078983561] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:01:53,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:01:53,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 11:01:53,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970333227] [2024-10-24 11:01:53,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:01:53,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 11:01:53,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 11:01:53,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 11:01:53,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:01:53,937 INFO L87 Difference]: Start difference. First operand has 35 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 25 states have internal predecessors, (38), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 11:01:58,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-24 11:01:58,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:01:58,111 INFO L93 Difference]: Finished difference Result 66 states and 112 transitions. [2024-10-24 11:01:58,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 11:01:58,168 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 54 [2024-10-24 11:01:58,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:01:58,175 INFO L225 Difference]: With dead ends: 66 [2024-10-24 11:01:58,175 INFO L226 Difference]: Without dead ends: 32 [2024-10-24 11:01:58,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:01:58,181 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:01:58,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-10-24 11:01:58,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-10-24 11:01:58,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-10-24 11:01:58,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-24 11:01:58,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 45 transitions. [2024-10-24 11:01:58,221 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 45 transitions. Word has length 54 [2024-10-24 11:01:58,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:01:58,221 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 45 transitions. [2024-10-24 11:01:58,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 11:01:58,222 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 45 transitions. [2024-10-24 11:01:58,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-24 11:01:58,224 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:01:58,224 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:01:58,242 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-24 11:01:58,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 11:01:58,425 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:01:58,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:01:58,426 INFO L85 PathProgramCache]: Analyzing trace with hash 568314856, now seen corresponding path program 1 times [2024-10-24 11:01:58,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 11:01:58,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077217540] [2024-10-24 11:01:58,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:01:58,427 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 11:01:58,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 11:01:58,431 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 11:01:58,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-24 11:01:58,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:01:59,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-24 11:01:59,008 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:02:21,168 WARN L286 SmtUtils]: Spent 5.10s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-24 11:02:27,568 WARN L286 SmtUtils]: Spent 6.40s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-24 11:02:35,647 WARN L286 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-24 11:02:47,825 WARN L286 SmtUtils]: Spent 7.66s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-24 11:02:55,906 WARN L286 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-24 11:03:03,984 WARN L286 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-24 11:03:08,007 WARN L851 $PredicateComparison]: unable to prove that (and (= (_ bv0 8) c_~var_1_9~0) (= c_~var_1_1~0 (fp.sub c_currentRoundingMode c_~var_1_3~0 c_~var_1_4~0)) (fp.leq c_~var_1_3~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (fp.geq c_~var_1_3~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (= c_~var_1_3~0 c_~var_1_5~0) (= c_~var_1_13~0 (_ bv5 16)) (fp.eq (fp.add c_currentRoundingMode c_~var_1_3~0 (fp.add c_currentRoundingMode c_~var_1_4~0 c_~var_1_1~0)) c_~var_1_1~0) (= c_currentRoundingMode roundNearestTiesToEven) (= (_ bv0 8) c_~var_1_2~0)) is different from false