./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-36.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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-while_file-36.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 0106173d0264f3b7073aa037c767f5a06a37b054d6eaa32bc9517002adc60cc2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 07:34:36,720 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 07:34:36,769 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 07:34:36,771 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 07:34:36,772 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 07:34:36,785 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 07:34:36,785 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 07:34:36,786 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 07:34:36,786 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 07:34:36,786 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 07:34:36,787 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 07:34:36,787 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 07:34:36,787 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 07:34:36,788 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 07:34:36,788 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 07:34:36,788 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 07:34:36,788 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 07:34:36,789 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 07:34:36,789 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 07:34:36,789 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 07:34:36,789 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 07:34:36,790 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 07:34:36,790 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 07:34:36,791 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 07:34:36,791 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 07:34:36,791 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 07:34:36,791 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 07:34:36,792 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 07:34:36,792 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 07:34:36,792 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 07:34:36,792 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 07:34:36,793 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 07:34:36,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 07:34:36,793 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 07:34:36,793 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 07:34:36,794 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 07:34:36,794 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 07:34:36,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 07:34:36,794 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 07:34:36,794 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 07:34:36,795 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 07:34:36,795 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 07:34:36,795 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0106173d0264f3b7073aa037c767f5a06a37b054d6eaa32bc9517002adc60cc2 [2024-11-10 07:34:36,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 07:34:36,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 07:34:36,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 07:34:36,985 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 07:34:36,986 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 07:34:36,986 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-36.i [2024-11-10 07:34:38,328 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 07:34:38,507 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 07:34:38,508 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-36.i [2024-11-10 07:34:38,520 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/129b04351/a6dca7e701c54d2ca7095b186f888603/FLAG65f1c85f3 [2024-11-10 07:34:38,535 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/129b04351/a6dca7e701c54d2ca7095b186f888603 [2024-11-10 07:34:38,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 07:34:38,540 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 07:34:38,543 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 07:34:38,543 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 07:34:38,547 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 07:34:38,548 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:34:38" (1/1) ... [2024-11-10 07:34:38,549 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@669d480e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:38, skipping insertion in model container [2024-11-10 07:34:38,549 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:34:38" (1/1) ... [2024-11-10 07:34:38,565 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 07:34:38,711 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-36.i[915,928] [2024-11-10 07:34:38,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 07:34:38,775 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 07:34:38,785 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-36.i[915,928] [2024-11-10 07:34:38,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 07:34:38,817 INFO L204 MainTranslator]: Completed translation [2024-11-10 07:34:38,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:38 WrapperNode [2024-11-10 07:34:38,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 07:34:38,819 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 07:34:38,819 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 07:34:38,819 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 07:34:38,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:38" (1/1) ... [2024-11-10 07:34:38,830 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:38" (1/1) ... [2024-11-10 07:34:38,854 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 83 [2024-11-10 07:34:38,854 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 07:34:38,855 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 07:34:38,855 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 07:34:38,855 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 07:34:38,867 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:38" (1/1) ... [2024-11-10 07:34:38,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:38" (1/1) ... [2024-11-10 07:34:38,871 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:38" (1/1) ... [2024-11-10 07:34:38,888 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]. [2024-11-10 07:34:38,888 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:38" (1/1) ... [2024-11-10 07:34:38,888 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:38" (1/1) ... [2024-11-10 07:34:38,892 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:38" (1/1) ... [2024-11-10 07:34:38,892 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:38" (1/1) ... [2024-11-10 07:34:38,893 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:38" (1/1) ... [2024-11-10 07:34:38,894 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:38" (1/1) ... [2024-11-10 07:34:38,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 07:34:38,896 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 07:34:38,896 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 07:34:38,896 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 07:34:38,897 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:38" (1/1) ... [2024-11-10 07:34:38,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 07:34:38,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 07:34:38,924 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) [2024-11-10 07:34:38,926 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 [2024-11-10 07:34:38,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 07:34:38,956 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 07:34:38,956 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 07:34:38,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 07:34:38,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 07:34:38,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 07:34:39,009 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 07:34:39,011 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 07:34:39,138 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-10 07:34:39,138 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 07:34:39,148 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 07:34:39,148 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 07:34:39,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:34:39 BoogieIcfgContainer [2024-11-10 07:34:39,148 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 07:34:39,150 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 07:34:39,150 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 07:34:39,153 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 07:34:39,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:34:38" (1/3) ... [2024-11-10 07:34:39,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@461af36c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:34:39, skipping insertion in model container [2024-11-10 07:34:39,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:38" (2/3) ... [2024-11-10 07:34:39,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@461af36c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:34:39, skipping insertion in model container [2024-11-10 07:34:39,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:34:39" (3/3) ... [2024-11-10 07:34:39,155 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-36.i [2024-11-10 07:34:39,167 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 07:34:39,167 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 07:34:39,213 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 07:34:39,219 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;@3b101943, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 07:34:39,219 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 07:34:39,222 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-10 07:34:39,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-10 07:34:39,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:34:39,230 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:34:39,230 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:34:39,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:34:39,234 INFO L85 PathProgramCache]: Analyzing trace with hash 803647488, now seen corresponding path program 1 times [2024-11-10 07:34:39,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 07:34:39,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366977172] [2024-11-10 07:34:39,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:34:39,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 07:34:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:34:39,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 07:34:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:34:39,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 07:34:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:34:39,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 07:34:39,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:34:39,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-10 07:34:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:34:39,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 07:34:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:34:39,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-10 07:34:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:34:39,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-10 07:34:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:34:39,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 07:34:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:34:39,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 07:34:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:34:39,486 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-10 07:34:39,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 07:34:39,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366977172] [2024-11-10 07:34:39,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366977172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 07:34:39,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 07:34:39,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 07:34:39,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506023229] [2024-11-10 07:34:39,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 07:34:39,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 07:34:39,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 07:34:39,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 07:34:39,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 07:34:39,519 INFO L87 Difference]: Start difference. First operand has 43 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-10 07:34:39,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 07:34:39,535 INFO L93 Difference]: Finished difference Result 78 states and 120 transitions. [2024-11-10 07:34:39,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 07:34:39,537 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66 [2024-11-10 07:34:39,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 07:34:39,542 INFO L225 Difference]: With dead ends: 78 [2024-11-10 07:34:39,542 INFO L226 Difference]: Without dead ends: 38 [2024-11-10 07:34:39,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 07:34:39,547 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 07:34:39,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 07:34:39,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-10 07:34:39,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-10 07:34:39,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-10 07:34:39,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 51 transitions. [2024-11-10 07:34:39,577 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 51 transitions. Word has length 66 [2024-11-10 07:34:39,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 07:34:39,577 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 51 transitions. [2024-11-10 07:34:39,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-10 07:34:39,578 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2024-11-10 07:34:39,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-10 07:34:39,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:34:39,581 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:34:39,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 07:34:39,582 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:34:39,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:34:39,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1956125277, now seen corresponding path program 1 times [2024-11-10 07:34:39,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 07:34:39,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12624045] [2024-11-10 07:34:39,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:34:39,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 07:34:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 07:34:39,685 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 07:34:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 07:34:39,770 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 07:34:39,770 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 07:34:39,772 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-10 07:34:39,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 07:34:39,776 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-10 07:34:39,825 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 07:34:39,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:34:39 BoogieIcfgContainer [2024-11-10 07:34:39,831 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 07:34:39,832 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 07:34:39,832 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 07:34:39,832 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 07:34:39,833 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:34:39" (3/4) ... [2024-11-10 07:34:39,835 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-10 07:34:39,836 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 07:34:39,837 INFO L158 Benchmark]: Toolchain (without parser) took 1296.42ms. Allocated memory is still 163.6MB. Free memory was 98.2MB in the beginning and 69.1MB in the end (delta: 29.2MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2024-11-10 07:34:39,837 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 109.1MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 07:34:39,838 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.22ms. Allocated memory is still 163.6MB. Free memory was 97.9MB in the beginning and 132.7MB in the end (delta: -34.8MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2024-11-10 07:34:39,839 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.34ms. Allocated memory is still 163.6MB. Free memory was 132.7MB in the beginning and 130.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 07:34:39,839 INFO L158 Benchmark]: Boogie Preprocessor took 40.70ms. Allocated memory is still 163.6MB. Free memory was 130.6MB in the beginning and 128.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 07:34:39,839 INFO L158 Benchmark]: IcfgBuilder took 252.70ms. Allocated memory is still 163.6MB. Free memory was 128.6MB in the beginning and 113.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-10 07:34:39,842 INFO L158 Benchmark]: TraceAbstraction took 681.14ms. Allocated memory is still 163.6MB. Free memory was 113.1MB in the beginning and 69.1MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-11-10 07:34:39,842 INFO L158 Benchmark]: Witness Printer took 4.41ms. Allocated memory is still 163.6MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 07:34:39,844 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 109.1MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.22ms. Allocated memory is still 163.6MB. Free memory was 97.9MB in the beginning and 132.7MB in the end (delta: -34.8MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.34ms. Allocated memory is still 163.6MB. Free memory was 132.7MB in the beginning and 130.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.70ms. Allocated memory is still 163.6MB. Free memory was 130.6MB in the beginning and 128.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 252.70ms. Allocated memory is still 163.6MB. Free memory was 128.6MB in the beginning and 113.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 681.14ms. Allocated memory is still 163.6MB. Free memory was 113.1MB in the beginning and 69.1MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 4.41ms. Allocated memory is still 163.6MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 68, overapproximation of someBinaryDOUBLEComparisonOperation at line 77. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 1; [L23] unsigned char var_1_4 = 0; [L24] float var_1_6 = 2.375; [L25] float var_1_7 = 10.8; [L26] double var_1_9 = 9.6; [L27] double var_1_12 = 128.5; [L28] unsigned char var_1_13 = 128; [L29] float var_1_14 = 8.5; [L30] unsigned char var_1_15 = 128; [L31] unsigned char last_1_var_1_13 = 128; VAL [isInitial=0, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=0, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L81] isInitial = 1 [L82] FCALL initially() [L83] COND TRUE 1 [L84] CALL updateLastVariables() [L74] last_1_var_1_13 = var_1_13 VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=0, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L84] RET updateLastVariables() [L85] CALL updateVariables() [L57] var_1_4 = __VERIFIER_nondet_uchar() [L58] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L58] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L59] CALL assume_abort_if_not(var_1_4 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=0, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=0, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L59] RET assume_abort_if_not(var_1_4 <= 1) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=0, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L60] var_1_6 = __VERIFIER_nondet_float() [L61] CALL assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=0, var_1_7=54/5, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=0, var_1_7=54/5, var_1_9=48/5] [L61] RET assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=0, var_1_7=54/5, var_1_9=48/5] [L62] var_1_7 = __VERIFIER_nondet_float() [L63] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=0, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=0, var_1_9=48/5] [L63] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=0, var_1_9=48/5] [L64] var_1_12 = __VERIFIER_nondet_double() [L65] CALL assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=0, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=0, var_1_9=48/5] [L65] RET assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=0, var_1_9=48/5] [L66] var_1_14 = __VERIFIER_nondet_float() [L67] CALL assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=128, var_1_1=1, var_1_4=0, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=128, var_1_1=1, var_1_4=0, var_1_9=48/5] [L67] RET assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=128, var_1_1=1, var_1_4=0, var_1_9=48/5] [L68] CALL assume_abort_if_not(var_1_14 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=128, var_1_1=1, var_1_4=0, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=128, var_1_1=1, var_1_4=0, var_1_9=48/5] [L68] RET assume_abort_if_not(var_1_14 != 0.0F) VAL [isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=128, var_1_1=1, var_1_4=0, var_1_9=48/5] [L69] var_1_15 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_15 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=-2, var_1_1=1, var_1_4=0, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=-2, var_1_1=1, var_1_4=0, var_1_9=48/5] [L70] RET assume_abort_if_not(var_1_15 >= 127) VAL [isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=-2, var_1_1=1, var_1_4=0, var_1_9=48/5] [L71] CALL assume_abort_if_not(var_1_15 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=-2, var_1_1=1, var_1_4=0, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=-2, var_1_1=1, var_1_4=0, var_1_9=48/5] [L71] RET assume_abort_if_not(var_1_15 <= 254) VAL [isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=-2, var_1_1=1, var_1_4=0, var_1_9=48/5] [L85] RET updateVariables() [L86] CALL step() [L35] COND TRUE ((((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 + last_1_var_1_13) [L36] var_1_9 = var_1_12 VAL [isInitial=1, last_1_var_1_13=128, var_1_12=254, var_1_13=128, var_1_15=-2, var_1_1=1, var_1_4=0, var_1_9=254] [L38] COND TRUE var_1_9 <= (16.2f / var_1_14) [L39] var_1_13 = (var_1_15 - 5) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=254, var_1_13=249, var_1_15=-2, var_1_1=1, var_1_4=0, var_1_9=254] [L41] unsigned char stepLocal_0 = var_1_9 > var_1_9; VAL [isInitial=1, last_1_var_1_13=128, stepLocal_0=1, var_1_12=254, var_1_13=249, var_1_15=-2, var_1_1=1, var_1_4=0, var_1_9=254] [L42] COND FALSE !(stepLocal_0 && var_1_4) [L53] var_1_1 = var_1_13 VAL [isInitial=1, last_1_var_1_13=128, var_1_12=254, var_1_13=249, var_1_15=-2, var_1_1=249, var_1_4=0, var_1_9=254] [L86] RET step() [L87] CALL, EXPR property() [L77-L78] return ((((var_1_9 > var_1_9) && var_1_4) ? ((((((var_1_9) > ((- var_1_9))) ? (var_1_9) : ((- var_1_9)))) != var_1_9) ? ((! (var_1_9 >= (var_1_6 - var_1_7))) ? (var_1_1 == ((unsigned long int) var_1_13)) : (var_1_1 == ((unsigned long int) var_1_13))) : (var_1_1 == ((unsigned long int) var_1_13))) : (var_1_1 == ((unsigned long int) var_1_13))) && ((((((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 + last_1_var_1_13)) ? (var_1_9 == ((double) var_1_12)) : 1)) && ((var_1_9 <= (16.2f / var_1_14)) ? (var_1_13 == ((unsigned char) (var_1_15 - 5))) : 1) ; VAL [\result=0, isInitial=1, last_1_var_1_13=128, var_1_12=254, var_1_13=249, var_1_15=-2, var_1_1=249, var_1_4=0, var_1_9=254] [L87] RET, EXPR property() [L87] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=254, var_1_13=249, var_1_15=-2, var_1_1=249, var_1_4=0, var_1_9=254] [L19] reach_error() VAL [isInitial=1, last_1_var_1_13=128, var_1_12=254, var_1_13=249, var_1_15=-2, var_1_1=249, var_1_4=0, var_1_9=254] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 51 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 0.1s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 65 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 144/144 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 [2024-11-10 07:34:39,867 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-while_file-36.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 0106173d0264f3b7073aa037c767f5a06a37b054d6eaa32bc9517002adc60cc2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 07:34:41,811 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 07:34:41,883 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-10 07:34:41,893 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 07:34:41,896 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 07:34:41,920 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 07:34:41,920 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 07:34:41,921 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 07:34:41,921 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 07:34:41,921 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 07:34:41,922 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 07:34:41,922 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 07:34:41,922 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 07:34:41,923 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 07:34:41,923 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 07:34:41,925 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 07:34:41,925 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 07:34:41,927 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 07:34:41,927 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 07:34:41,928 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 07:34:41,928 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 07:34:41,928 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 07:34:41,928 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 07:34:41,929 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 07:34:41,929 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-10 07:34:41,930 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 07:34:41,930 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-10 07:34:41,930 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 07:34:41,930 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 07:34:41,930 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 07:34:41,930 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 07:34:41,931 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 07:34:41,931 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 07:34:41,931 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 07:34:41,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 07:34:41,931 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 07:34:41,931 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 07:34:41,931 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 07:34:41,932 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-10 07:34:41,932 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-10 07:34:41,932 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 07:34:41,933 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 07:34:41,933 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 07:34:41,933 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 07:34:41,934 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0106173d0264f3b7073aa037c767f5a06a37b054d6eaa32bc9517002adc60cc2 [2024-11-10 07:34:42,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 07:34:42,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 07:34:42,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 07:34:42,183 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 07:34:42,185 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 07:34:42,186 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-36.i [2024-11-10 07:34:43,584 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 07:34:43,803 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 07:34:43,804 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-36.i [2024-11-10 07:34:43,814 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e316abd8/1c9dd488841f4213ac14dfeb1523a6af/FLAG89cc9c2be [2024-11-10 07:34:43,832 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e316abd8/1c9dd488841f4213ac14dfeb1523a6af [2024-11-10 07:34:43,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 07:34:43,835 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 07:34:43,838 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 07:34:43,838 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 07:34:43,843 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 07:34:43,844 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:34:43" (1/1) ... [2024-11-10 07:34:43,845 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d09cb40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:43, skipping insertion in model container [2024-11-10 07:34:43,845 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:34:43" (1/1) ... [2024-11-10 07:34:43,866 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 07:34:44,031 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-36.i[915,928] [2024-11-10 07:34:44,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 07:34:44,091 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 07:34:44,101 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-36.i[915,928] [2024-11-10 07:34:44,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 07:34:44,142 INFO L204 MainTranslator]: Completed translation [2024-11-10 07:34:44,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:44 WrapperNode [2024-11-10 07:34:44,143 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 07:34:44,144 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 07:34:44,144 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 07:34:44,145 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 07:34:44,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:44" (1/1) ... [2024-11-10 07:34:44,164 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:44" (1/1) ... [2024-11-10 07:34:44,188 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 83 [2024-11-10 07:34:44,190 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 07:34:44,191 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 07:34:44,191 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 07:34:44,192 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 07:34:44,201 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:44" (1/1) ... [2024-11-10 07:34:44,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:44" (1/1) ... [2024-11-10 07:34:44,206 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:44" (1/1) ... [2024-11-10 07:34:44,220 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]. [2024-11-10 07:34:44,223 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:44" (1/1) ... [2024-11-10 07:34:44,223 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:44" (1/1) ... [2024-11-10 07:34:44,231 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:44" (1/1) ... [2024-11-10 07:34:44,232 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:44" (1/1) ... [2024-11-10 07:34:44,234 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:44" (1/1) ... [2024-11-10 07:34:44,238 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:44" (1/1) ... [2024-11-10 07:34:44,240 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 07:34:44,241 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 07:34:44,243 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 07:34:44,243 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 07:34:44,244 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:44" (1/1) ... [2024-11-10 07:34:44,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 07:34:44,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 07:34:44,279 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) [2024-11-10 07:34:44,282 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 [2024-11-10 07:34:44,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 07:34:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-10 07:34:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 07:34:44,316 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 07:34:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 07:34:44,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 07:34:44,374 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 07:34:44,375 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 07:34:48,076 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-10 07:34:48,076 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 07:34:48,099 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 07:34:48,100 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 07:34:48,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:34:48 BoogieIcfgContainer [2024-11-10 07:34:48,100 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 07:34:48,107 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 07:34:48,107 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 07:34:48,115 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 07:34:48,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:34:43" (1/3) ... [2024-11-10 07:34:48,118 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140f0b5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:34:48, skipping insertion in model container [2024-11-10 07:34:48,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:44" (2/3) ... [2024-11-10 07:34:48,118 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140f0b5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:34:48, skipping insertion in model container [2024-11-10 07:34:48,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:34:48" (3/3) ... [2024-11-10 07:34:48,124 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-36.i [2024-11-10 07:34:48,158 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 07:34:48,158 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 07:34:48,257 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 07:34:48,273 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;@53ce1c2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 07:34:48,274 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 07:34:48,282 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-10 07:34:48,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-10 07:34:48,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:34:48,303 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:34:48,304 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:34:48,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:34:48,313 INFO L85 PathProgramCache]: Analyzing trace with hash 803647488, now seen corresponding path program 1 times [2024-11-10 07:34:48,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 07:34:48,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [918997246] [2024-11-10 07:34:48,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:34:48,330 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 [2024-11-10 07:34:48,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 07:34:48,335 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) [2024-11-10 07:34:48,336 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 [2024-11-10 07:34:48,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:34:48,605 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-10 07:34:48,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 07:34:48,632 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 07:34:48,632 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 07:34:48,632 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 07:34:48,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [918997246] [2024-11-10 07:34:48,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [918997246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 07:34:48,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 07:34:48,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 07:34:48,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586281146] [2024-11-10 07:34:48,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 07:34:48,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 07:34:48,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 07:34:48,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 07:34:48,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 07:34:48,654 INFO L87 Difference]: Start difference. First operand has 43 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-10 07:34:48,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 07:34:48,670 INFO L93 Difference]: Finished difference Result 78 states and 120 transitions. [2024-11-10 07:34:48,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 07:34:48,672 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66 [2024-11-10 07:34:48,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 07:34:48,676 INFO L225 Difference]: With dead ends: 78 [2024-11-10 07:34:48,677 INFO L226 Difference]: Without dead ends: 38 [2024-11-10 07:34:48,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 07:34:48,681 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 07:34:48,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 07:34:48,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-10 07:34:48,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-10 07:34:48,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-10 07:34:48,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 51 transitions. [2024-11-10 07:34:48,709 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 51 transitions. Word has length 66 [2024-11-10 07:34:48,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 07:34:48,710 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 51 transitions. [2024-11-10 07:34:48,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-10 07:34:48,710 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2024-11-10 07:34:48,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-10 07:34:48,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 07:34:48,712 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 07:34:48,721 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 [2024-11-10 07:34:48,914 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 [2024-11-10 07:34:48,914 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 07:34:48,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 07:34:48,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1956125277, now seen corresponding path program 1 times [2024-11-10 07:34:48,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 07:34:48,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58014739] [2024-11-10 07:34:48,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 07:34:48,916 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 [2024-11-10 07:34:48,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 07:34:48,921 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) [2024-11-10 07:34:48,922 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 [2024-11-10 07:34:49,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 07:34:49,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-10 07:34:49,197 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 07:35:26,583 WARN L286 SmtUtils]: Spent 13.70s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-10 07:36:21,869 WARN L286 SmtUtils]: Spent 9.51s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)