./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-29.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-29.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 ebd450d45b6e74a7932eec9848ae0cf358cd00d24cc83ea5ec60a19fac36ea9d --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 05:19:07,812 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 05:19:07,903 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-12 05:19:07,908 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 05:19:07,909 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 05:19:07,959 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 05:19:07,961 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 05:19:07,962 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 05:19:07,962 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 05:19:07,968 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 05:19:07,968 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 05:19:07,968 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 05:19:07,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 05:19:07,969 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 05:19:07,970 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 05:19:07,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 05:19:07,970 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 05:19:07,970 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 05:19:07,970 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 05:19:07,971 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 05:19:07,971 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 05:19:07,972 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 05:19:07,972 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 05:19:07,972 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 05:19:07,972 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 05:19:07,972 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 05:19:07,973 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 05:19:07,973 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 05:19:07,973 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 05:19:07,973 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 05:19:07,974 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 05:19:07,974 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 05:19:07,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 05:19:07,974 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 05:19:07,974 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 05:19:07,975 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 05:19:07,975 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 05:19:07,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 05:19:07,979 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 05:19:07,979 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 05:19:07,979 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 05:19:07,980 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 05:19:07,980 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebd450d45b6e74a7932eec9848ae0cf358cd00d24cc83ea5ec60a19fac36ea9d [2024-11-12 05:19:08,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 05:19:08,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 05:19:08,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 05:19:08,251 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 05:19:08,252 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 05:19:08,254 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-29.i [2024-11-12 05:19:09,760 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 05:19:09,966 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 05:19:09,968 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-29.i [2024-11-12 05:19:09,976 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20b8d7ed4/0a283aeaa3524e3fa2a5cdeddd4e6869/FLAG97917e51b [2024-11-12 05:19:09,988 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20b8d7ed4/0a283aeaa3524e3fa2a5cdeddd4e6869 [2024-11-12 05:19:09,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 05:19:09,993 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 05:19:09,994 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 05:19:09,995 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 05:19:10,000 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 05:19:10,000 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:19:09" (1/1) ... [2024-11-12 05:19:10,003 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c92edea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:10, skipping insertion in model container [2024-11-12 05:19:10,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:19:09" (1/1) ... [2024-11-12 05:19:10,035 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 05:19:10,195 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_25-1loop_file-29.i[915,928] [2024-11-12 05:19:10,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 05:19:10,239 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 05:19:10,251 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_25-1loop_file-29.i[915,928] [2024-11-12 05:19:10,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 05:19:10,286 INFO L204 MainTranslator]: Completed translation [2024-11-12 05:19:10,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:10 WrapperNode [2024-11-12 05:19:10,287 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 05:19:10,288 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 05:19:10,288 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 05:19:10,288 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 05:19:10,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:10" (1/1) ... [2024-11-12 05:19:10,302 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:10" (1/1) ... [2024-11-12 05:19:10,332 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 88 [2024-11-12 05:19:10,333 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 05:19:10,334 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 05:19:10,334 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 05:19:10,334 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 05:19:10,351 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:10" (1/1) ... [2024-11-12 05:19:10,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:10" (1/1) ... [2024-11-12 05:19:10,357 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:10" (1/1) ... [2024-11-12 05:19:10,379 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]. [2024-11-12 05:19:10,380 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:10" (1/1) ... [2024-11-12 05:19:10,380 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:10" (1/1) ... [2024-11-12 05:19:10,385 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:10" (1/1) ... [2024-11-12 05:19:10,388 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:10" (1/1) ... [2024-11-12 05:19:10,389 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:10" (1/1) ... [2024-11-12 05:19:10,391 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:10" (1/1) ... [2024-11-12 05:19:10,397 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 05:19:10,398 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 05:19:10,398 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 05:19:10,398 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 05:19:10,399 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:10" (1/1) ... [2024-11-12 05:19:10,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 05:19:10,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 05:19:10,440 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) [2024-11-12 05:19:10,470 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 [2024-11-12 05:19:10,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 05:19:10,592 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 05:19:10,592 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 05:19:10,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 05:19:10,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 05:19:10,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 05:19:10,680 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 05:19:10,684 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 05:19:11,006 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-12 05:19:11,006 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 05:19:11,025 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 05:19:11,026 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 05:19:11,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:19:11 BoogieIcfgContainer [2024-11-12 05:19:11,027 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 05:19:11,031 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 05:19:11,032 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 05:19:11,035 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 05:19:11,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 05:19:09" (1/3) ... [2024-11-12 05:19:11,036 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a29581a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:19:11, skipping insertion in model container [2024-11-12 05:19:11,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:10" (2/3) ... [2024-11-12 05:19:11,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a29581a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:19:11, skipping insertion in model container [2024-11-12 05:19:11,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:19:11" (3/3) ... [2024-11-12 05:19:11,039 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-29.i [2024-11-12 05:19:11,056 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 05:19:11,056 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 05:19:11,130 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 05:19:11,138 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;@7353d1b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 05:19:11,139 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 05:19:11,144 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 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) [2024-11-12 05:19:11,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-12 05:19:11,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 05:19:11,154 INFO L218 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] [2024-11-12 05:19:11,155 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 05:19:11,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 05:19:11,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1200207410, now seen corresponding path program 1 times [2024-11-12 05:19:11,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 05:19:11,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361657483] [2024-11-12 05:19:11,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 05:19:11,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 05:19:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 05:19:11,365 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 05:19:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 05:19:11,531 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 05:19:11,533 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 05:19:11,534 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-12 05:19:11,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 05:19:11,540 INFO L421 BasicCegarLoop]: Path program histogram: [1] [2024-11-12 05:19:11,617 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 05:19:11,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 05:19:11 BoogieIcfgContainer [2024-11-12 05:19:11,620 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 05:19:11,621 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 05:19:11,621 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 05:19:11,622 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 05:19:11,622 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:19:11" (3/4) ... [2024-11-12 05:19:11,624 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-12 05:19:11,625 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 05:19:11,626 INFO L158 Benchmark]: Toolchain (without parser) took 1633.28ms. Allocated memory is still 182.5MB. Free memory was 116.5MB in the beginning and 114.3MB in the end (delta: 2.2MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. [2024-11-12 05:19:11,626 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 71.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 05:19:11,627 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.44ms. Allocated memory is still 182.5MB. Free memory was 116.2MB in the beginning and 102.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-12 05:19:11,627 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.46ms. Allocated memory is still 182.5MB. Free memory was 102.5MB in the beginning and 100.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 05:19:11,628 INFO L158 Benchmark]: Boogie Preprocessor took 63.58ms. Allocated memory is still 182.5MB. Free memory was 100.1MB in the beginning and 97.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 05:19:11,628 INFO L158 Benchmark]: RCFGBuilder took 628.85ms. Allocated memory is still 182.5MB. Free memory was 96.8MB in the beginning and 142.2MB in the end (delta: -45.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-12 05:19:11,629 INFO L158 Benchmark]: TraceAbstraction took 589.81ms. Allocated memory is still 182.5MB. Free memory was 141.5MB in the beginning and 114.9MB in the end (delta: 26.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-12 05:19:11,629 INFO L158 Benchmark]: Witness Printer took 3.93ms. Allocated memory is still 182.5MB. Free memory was 114.9MB in the beginning and 114.3MB in the end (delta: 640.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 05:19:11,632 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 71.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.44ms. Allocated memory is still 182.5MB. Free memory was 116.2MB in the beginning and 102.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.46ms. Allocated memory is still 182.5MB. Free memory was 102.5MB in the beginning and 100.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.58ms. Allocated memory is still 182.5MB. Free memory was 100.1MB in the beginning and 97.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 628.85ms. Allocated memory is still 182.5MB. Free memory was 96.8MB in the beginning and 142.2MB in the end (delta: -45.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 589.81ms. Allocated memory is still 182.5MB. Free memory was 141.5MB in the beginning and 114.9MB in the end (delta: 26.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 3.93ms. Allocated memory is still 182.5MB. Free memory was 114.9MB in the beginning and 114.3MB in the end (delta: 640.5kB). 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 76, overapproximation of someBinaryDOUBLEComparisonOperation at line 76. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 2.5; [L23] unsigned char var_1_2 = 0; [L24] float var_1_3 = 9.3; [L25] float var_1_4 = 3.4; [L26] unsigned short int var_1_5 = 32; [L27] unsigned short int var_1_6 = 10; [L28] unsigned short int var_1_7 = 64; [L29] unsigned short int var_1_8 = 16; [L30] unsigned short int var_1_9 = 1; VAL [isInitial=0, var_1_1=5/2, var_1_2=0, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L80] isInitial = 1 [L81] FCALL initially() [L82] int k_loop; [L83] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_1=5/2, var_1_2=0, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L83] COND TRUE k_loop < 1 [L84] FCALL updateLastVariables() [L85] CALL updateVariables() [L56] var_1_2 = __VERIFIER_nondet_uchar() [L57] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L57] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_1=5/2, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L58] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L58] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L59] var_1_3 = __VERIFIER_nondet_float() [L60] CALL assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L60] RET assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L61] var_1_4 = __VERIFIER_nondet_float() [L62] CALL assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L62] RET assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L63] var_1_6 = __VERIFIER_nondet_ushort() [L64] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_7=64, var_1_8=16, var_1_9=1] [L64] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_7=64, var_1_8=16, var_1_9=1] [L65] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32765, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32765, var_1_7=64, var_1_8=16, var_1_9=1] [L65] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32765, var_1_7=64, var_1_8=16, var_1_9=1] [L66] var_1_7 = __VERIFIER_nondet_ushort() [L67] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32765, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32765, var_1_8=16, var_1_9=1] [L67] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32765, var_1_8=16, var_1_9=1] [L68] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32765, var_1_7=32767, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32765, var_1_7=32767, var_1_8=16, var_1_9=1] [L68] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32765, var_1_7=32767, var_1_8=16, var_1_9=1] [L69] var_1_8 = __VERIFIER_nondet_ushort() [L70] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32765, var_1_7=32767, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32765, var_1_7=32767, var_1_9=1] [L70] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32765, var_1_7=32767, var_1_9=1] [L71] CALL assume_abort_if_not(var_1_8 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32765, var_1_7=32767, var_1_8=6553, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32765, var_1_7=32767, var_1_8=6553, var_1_9=1] [L71] RET assume_abort_if_not(var_1_8 <= 65534) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32765, var_1_7=32767, var_1_8=6553, var_1_9=1] [L85] RET updateVariables() [L86] CALL step() [L34] COND TRUE \read(var_1_2) [L35] var_1_1 = var_1_3 VAL [isInitial=1, var_1_1=65537, var_1_2=1, var_1_3=65537, var_1_5=32, var_1_6=32765, var_1_7=32767, var_1_8=6553, var_1_9=1] [L41] COND TRUE (var_1_1 + 8.125) > (var_1_1 * var_1_3) [L42] var_1_5 = (((((var_1_6 + var_1_7)) > (var_1_8)) ? ((var_1_6 + var_1_7)) : (var_1_8))) VAL [isInitial=1, var_1_1=65537, var_1_2=1, var_1_3=65537, var_1_5=65532, var_1_6=32765, var_1_7=32767, var_1_8=6553, var_1_9=1] [L46] signed long int stepLocal_0 = 5 * var_1_8; VAL [isInitial=1, stepLocal_0=32765, var_1_1=65537, var_1_2=1, var_1_3=65537, var_1_5=65532, var_1_6=32765, var_1_7=32767, var_1_8=6553, var_1_9=1] [L47] COND FALSE !(((((var_1_3) < (var_1_1)) ? (var_1_3) : (var_1_1))) == var_1_1) VAL [isInitial=1, stepLocal_0=32765, var_1_1=65537, var_1_2=1, var_1_3=65537, var_1_5=65532, var_1_6=32765, var_1_7=32767, var_1_8=6553, var_1_9=1] [L86] RET step() [L87] CALL, EXPR property() [L76-L77] return ((var_1_2 ? (var_1_1 == ((float) var_1_3)) : ((! (var_1_3 < var_1_4)) ? (var_1_1 == ((float) ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))) : 1)) && (((var_1_1 + 8.125) > (var_1_1 * var_1_3)) ? (var_1_5 == ((unsigned short int) (((((var_1_6 + var_1_7)) > (var_1_8)) ? ((var_1_6 + var_1_7)) : (var_1_8))))) : (var_1_5 == ((unsigned short int) var_1_8)))) && ((((((var_1_3) < (var_1_1)) ? (var_1_3) : (var_1_1))) == var_1_1) ? ((var_1_6 > (5 * var_1_8)) ? ((var_1_1 < (var_1_1 * 256.5f)) ? (var_1_9 == ((unsigned short int) var_1_6)) : 1) : 1) : 1) ; VAL [\result=0, isInitial=1, var_1_1=65537, var_1_2=1, var_1_3=65537, var_1_5=65532, var_1_6=32765, var_1_7=32767, var_1_8=6553, var_1_9=1] [L87] RET, EXPR property() [L87] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_1=65537, var_1_2=1, var_1_3=65537, var_1_5=65532, var_1_6=32765, var_1_7=32767, var_1_8=6553, var_1_9=1] [L19] reach_error() VAL [isInitial=1, var_1_1=65537, var_1_2=1, var_1_3=65537, var_1_5=65532, var_1_6=32765, var_1_7=32767, var_1_8=6553, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 [2024-11-12 05:19:11,666 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/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-29.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 ebd450d45b6e74a7932eec9848ae0cf358cd00d24cc83ea5ec60a19fac36ea9d --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 05:19:13,921 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 05:19:14,004 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-12 05:19:14,013 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 05:19:14,013 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 05:19:14,044 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 05:19:14,045 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 05:19:14,046 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 05:19:14,047 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 05:19:14,048 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 05:19:14,049 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 05:19:14,049 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 05:19:14,050 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 05:19:14,054 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 05:19:14,054 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 05:19:14,055 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 05:19:14,055 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 05:19:14,055 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 05:19:14,055 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 05:19:14,056 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 05:19:14,056 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 05:19:14,056 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 05:19:14,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 05:19:14,057 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 05:19:14,057 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-12 05:19:14,057 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 05:19:14,058 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-12 05:19:14,058 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 05:19:14,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 05:19:14,059 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 05:19:14,059 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 05:19:14,059 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 05:19:14,059 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 05:19:14,060 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 05:19:14,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 05:19:14,064 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 05:19:14,064 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 05:19:14,065 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 05:19:14,065 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-12 05:19:14,065 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-12 05:19:14,066 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 05:19:14,067 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 05:19:14,067 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 05:19:14,067 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 05:19:14,067 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebd450d45b6e74a7932eec9848ae0cf358cd00d24cc83ea5ec60a19fac36ea9d [2024-11-12 05:19:14,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 05:19:14,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 05:19:14,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 05:19:14,415 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 05:19:14,416 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 05:19:14,417 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-29.i [2024-11-12 05:19:16,071 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 05:19:16,303 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 05:19:16,304 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-29.i [2024-11-12 05:19:16,322 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c2dac091/2ccb6ab0b3f5449ab230bf8deba872f2/FLAG189d14939 [2024-11-12 05:19:16,640 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c2dac091/2ccb6ab0b3f5449ab230bf8deba872f2 [2024-11-12 05:19:16,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 05:19:16,644 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 05:19:16,645 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 05:19:16,645 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 05:19:16,650 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 05:19:16,651 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:19:16" (1/1) ... [2024-11-12 05:19:16,652 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d9a7602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:16, skipping insertion in model container [2024-11-12 05:19:16,652 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:19:16" (1/1) ... [2024-11-12 05:19:16,676 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 05:19:16,865 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_25-1loop_file-29.i[915,928] [2024-11-12 05:19:16,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 05:19:16,938 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 05:19:16,954 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_25-1loop_file-29.i[915,928] [2024-11-12 05:19:16,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 05:19:17,024 INFO L204 MainTranslator]: Completed translation [2024-11-12 05:19:17,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:17 WrapperNode [2024-11-12 05:19:17,025 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 05:19:17,026 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 05:19:17,027 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 05:19:17,027 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 05:19:17,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:17" (1/1) ... [2024-11-12 05:19:17,046 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:17" (1/1) ... [2024-11-12 05:19:17,072 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 88 [2024-11-12 05:19:17,073 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 05:19:17,074 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 05:19:17,075 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 05:19:17,075 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 05:19:17,085 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:17" (1/1) ... [2024-11-12 05:19:17,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:17" (1/1) ... [2024-11-12 05:19:17,093 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:17" (1/1) ... [2024-11-12 05:19:17,113 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]. [2024-11-12 05:19:17,114 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:17" (1/1) ... [2024-11-12 05:19:17,114 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:17" (1/1) ... [2024-11-12 05:19:17,126 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:17" (1/1) ... [2024-11-12 05:19:17,129 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:17" (1/1) ... [2024-11-12 05:19:17,133 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:17" (1/1) ... [2024-11-12 05:19:17,138 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:17" (1/1) ... [2024-11-12 05:19:17,141 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 05:19:17,146 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 05:19:17,146 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 05:19:17,146 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 05:19:17,147 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:17" (1/1) ... [2024-11-12 05:19:17,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 05:19:17,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 05:19:17,185 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) [2024-11-12 05:19:17,189 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 [2024-11-12 05:19:17,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 05:19:17,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-12 05:19:17,236 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 05:19:17,236 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 05:19:17,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 05:19:17,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 05:19:17,327 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 05:19:17,330 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 05:19:25,482 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-12 05:19:25,482 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 05:19:25,499 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 05:19:25,499 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 05:19:25,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:19:25 BoogieIcfgContainer [2024-11-12 05:19:25,500 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 05:19:25,503 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 05:19:25,505 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 05:19:25,508 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 05:19:25,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 05:19:16" (1/3) ... [2024-11-12 05:19:25,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dcd5a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:19:25, skipping insertion in model container [2024-11-12 05:19:25,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:19:17" (2/3) ... [2024-11-12 05:19:25,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dcd5a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:19:25, skipping insertion in model container [2024-11-12 05:19:25,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:19:25" (3/3) ... [2024-11-12 05:19:25,512 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-29.i [2024-11-12 05:19:25,527 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 05:19:25,527 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 05:19:25,595 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 05:19:25,602 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;@1b2b8570, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 05:19:25,603 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 05:19:25,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 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) [2024-11-12 05:19:25,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-12 05:19:25,617 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 05:19:25,618 INFO L218 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] [2024-11-12 05:19:25,619 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 05:19:25,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 05:19:25,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1200207410, now seen corresponding path program 1 times [2024-11-12 05:19:25,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 05:19:25,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [440555659] [2024-11-12 05:19:25,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 05:19:25,641 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 [2024-11-12 05:19:25,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 05:19:25,644 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) [2024-11-12 05:19:25,646 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 [2024-11-12 05:19:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 05:19:25,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-12 05:19:25,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 05:19:27,891 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 6 proven. 84 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-12 05:19:27,891 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 05:19:28,477 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-12 05:19:28,478 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 05:19:28,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [440555659] [2024-11-12 05:19:28,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [440555659] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 05:19:28,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-12 05:19:28,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-12 05:19:28,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795734650] [2024-11-12 05:19:28,484 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-12 05:19:28,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 05:19:28,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 05:19:28,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 05:19:28,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-12 05:19:28,519 INFO L87 Difference]: Start difference. First operand has 43 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 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 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) [2024-11-12 05:19:31,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-12 05:19:33,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-12 05:19:34,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-12 05:19:36,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-12 05:19:39,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-12 05:19:40,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-12 05:19:42,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-12 05:19:45,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-12 05:19:45,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 05:19:45,307 INFO L93 Difference]: Finished difference Result 138 states and 203 transitions. [2024-11-12 05:19:45,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-12 05:19:45,310 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 [2024-11-12 05:19:45,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 05:19:45,316 INFO L225 Difference]: With dead ends: 138 [2024-11-12 05:19:45,316 INFO L226 Difference]: Without dead ends: 86 [2024-11-12 05:19:45,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=185, Invalid=321, Unknown=0, NotChecked=0, Total=506 [2024-11-12 05:19:45,321 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 144 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2024-11-12 05:19:45,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 162 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 15.7s Time] [2024-11-12 05:19:45,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-12 05:19:45,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 59. [2024-11-12 05:19:45,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 44 states have internal predecessors, (52), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-12 05:19:45,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 76 transitions. [2024-11-12 05:19:45,369 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 76 transitions. Word has length 69 [2024-11-12 05:19:45,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 05:19:45,371 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 76 transitions. [2024-11-12 05:19:45,372 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) [2024-11-12 05:19:45,372 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2024-11-12 05:19:45,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-12 05:19:45,377 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 05:19:45,377 INFO L218 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] [2024-11-12 05:19:45,392 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 [2024-11-12 05:19:45,577 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 [2024-11-12 05:19:45,578 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 05:19:45,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 05:19:45,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1042787783, now seen corresponding path program 1 times [2024-11-12 05:19:45,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 05:19:45,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1690815677] [2024-11-12 05:19:45,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 05:19:45,580 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 [2024-11-12 05:19:45,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 05:19:45,583 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) [2024-11-12 05:19:45,585 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 [2024-11-12 05:19:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 05:19:45,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-12 05:19:45,812 INFO L279 TraceCheckSpWp]: Computing forward predicates...