./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-94.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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_floatingpointinfluence_no-floats_file-94.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 d91bd79856a8b9559a56a7e25213c7db2eb3158cb61927850418ed720a1561dc --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 15:55:00,091 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 15:55:00,151 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 15:55:00,157 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 15:55:00,157 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 15:55:00,184 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 15:55:00,185 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 15:55:00,185 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 15:55:00,186 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 15:55:00,187 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 15:55:00,187 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 15:55:00,188 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 15:55:00,188 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 15:55:00,190 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 15:55:00,190 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 15:55:00,190 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 15:55:00,190 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 15:55:00,191 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 15:55:00,191 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 15:55:00,191 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 15:55:00,191 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 15:55:00,195 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 15:55:00,195 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 15:55:00,195 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 15:55:00,196 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 15:55:00,196 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 15:55:00,196 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 15:55:00,196 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 15:55:00,196 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 15:55:00,197 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 15:55:00,197 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 15:55:00,197 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 15:55:00,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 15:55:00,198 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 15:55:00,198 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 15:55:00,198 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 15:55:00,199 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 15:55:00,200 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 15:55:00,200 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 15:55:00,200 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 15:55:00,200 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 15:55:00,200 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 15:55:00,201 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d91bd79856a8b9559a56a7e25213c7db2eb3158cb61927850418ed720a1561dc [2024-11-16 15:55:00,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 15:55:00,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 15:55:00,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 15:55:00,474 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 15:55:00,474 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 15:55:00,475 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-94.i [2024-11-16 15:55:01,823 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 15:55:01,994 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 15:55:01,995 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-94.i [2024-11-16 15:55:02,001 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72633e7af/ae5643b0dd4d4bd78ef87e63385bbd71/FLAGfe7fc30b9 [2024-11-16 15:55:02,402 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72633e7af/ae5643b0dd4d4bd78ef87e63385bbd71 [2024-11-16 15:55:02,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 15:55:02,405 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 15:55:02,410 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 15:55:02,410 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 15:55:02,414 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 15:55:02,416 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:55:02" (1/1) ... [2024-11-16 15:55:02,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2205dfd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:02, skipping insertion in model container [2024-11-16 15:55:02,417 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:55:02" (1/1) ... [2024-11-16 15:55:02,443 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 15:55:02,625 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-94.i[916,929] [2024-11-16 15:55:02,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 15:55:02,691 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 15:55:02,700 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_floatingpointinfluence_no-floats_file-94.i[916,929] [2024-11-16 15:55:02,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 15:55:02,737 INFO L204 MainTranslator]: Completed translation [2024-11-16 15:55:02,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:02 WrapperNode [2024-11-16 15:55:02,738 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 15:55:02,739 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 15:55:02,739 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 15:55:02,739 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 15:55:02,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:02" (1/1) ... [2024-11-16 15:55:02,754 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:02" (1/1) ... [2024-11-16 15:55:02,782 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 154 [2024-11-16 15:55:02,786 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 15:55:02,787 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 15:55:02,787 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 15:55:02,787 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 15:55:02,796 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:02" (1/1) ... [2024-11-16 15:55:02,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:02" (1/1) ... [2024-11-16 15:55:02,800 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:02" (1/1) ... [2024-11-16 15:55:02,818 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]. [2024-11-16 15:55:02,818 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:02" (1/1) ... [2024-11-16 15:55:02,818 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:02" (1/1) ... [2024-11-16 15:55:02,823 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:02" (1/1) ... [2024-11-16 15:55:02,823 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:02" (1/1) ... [2024-11-16 15:55:02,824 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:02" (1/1) ... [2024-11-16 15:55:02,825 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:02" (1/1) ... [2024-11-16 15:55:02,830 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 15:55:02,831 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 15:55:02,833 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 15:55:02,834 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 15:55:02,834 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:02" (1/1) ... [2024-11-16 15:55:02,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 15:55:02,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 15:55:02,869 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) [2024-11-16 15:55:02,874 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 [2024-11-16 15:55:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 15:55:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 15:55:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 15:55:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 15:55:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 15:55:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 15:55:03,000 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 15:55:03,002 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 15:55:03,274 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-16 15:55:03,275 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 15:55:03,289 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 15:55:03,290 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 15:55:03,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:55:03 BoogieIcfgContainer [2024-11-16 15:55:03,290 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 15:55:03,292 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 15:55:03,292 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 15:55:03,294 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 15:55:03,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:55:02" (1/3) ... [2024-11-16 15:55:03,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1310c61b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:55:03, skipping insertion in model container [2024-11-16 15:55:03,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:02" (2/3) ... [2024-11-16 15:55:03,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1310c61b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:55:03, skipping insertion in model container [2024-11-16 15:55:03,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:55:03" (3/3) ... [2024-11-16 15:55:03,296 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-94.i [2024-11-16 15:55:03,310 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 15:55:03,310 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 15:55:03,355 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 15:55:03,360 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;@a6c408, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 15:55:03,360 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 15:55:03,364 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 43 states have internal predecessors, (54), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-16 15:55:03,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-16 15:55:03,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:55:03,376 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:55:03,377 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:55:03,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:55:03,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1194552101, now seen corresponding path program 1 times [2024-11-16 15:55:03,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:55:03,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133589507] [2024-11-16 15:55:03,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:55:03,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:55:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:55:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:55:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:55:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:55:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 15:55:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:55:03,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 15:55:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 15:55:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 15:55:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 15:55:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 15:55:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 15:55:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 15:55:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 15:55:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 15:55:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 15:55:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 15:55:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 15:55:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 15:55:03,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 15:55:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 15:55:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 15:55:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 15:55:03,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 15:55:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 15:55:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 15:55:03,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 15:55:03,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-16 15:55:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-16 15:55:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-16 15:55:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-16 15:55:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:03,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-16 15:55:03,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:55:03,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133589507] [2024-11-16 15:55:03,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133589507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:55:03,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:55:03,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 15:55:03,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952370262] [2024-11-16 15:55:03,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:55:03,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 15:55:03,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:55:03,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 15:55:03,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 15:55:03,789 INFO L87 Difference]: Start difference. First operand has 76 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 43 states have internal predecessors, (54), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-16 15:55:03,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:55:03,814 INFO L93 Difference]: Finished difference Result 144 states and 256 transitions. [2024-11-16 15:55:03,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 15:55:03,816 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 186 [2024-11-16 15:55:03,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:55:03,824 INFO L225 Difference]: With dead ends: 144 [2024-11-16 15:55:03,825 INFO L226 Difference]: Without dead ends: 71 [2024-11-16 15:55:03,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 15:55:03,834 INFO L432 NwaCegarLoop]: 108 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, 108 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 [2024-11-16 15:55:03,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 15:55:03,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-16 15:55:03,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-16 15:55:03,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 38 states have internal predecessors, (46), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-16 15:55:03,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 108 transitions. [2024-11-16 15:55:03,887 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 108 transitions. Word has length 186 [2024-11-16 15:55:03,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:55:03,887 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 108 transitions. [2024-11-16 15:55:03,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-16 15:55:03,888 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 108 transitions. [2024-11-16 15:55:03,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-16 15:55:03,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:55:03,913 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:55:03,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 15:55:03,914 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:55:03,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:55:03,915 INFO L85 PathProgramCache]: Analyzing trace with hash -2077064058, now seen corresponding path program 1 times [2024-11-16 15:55:03,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:55:03,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673315641] [2024-11-16 15:55:03,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:55:03,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:55:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat