./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 828b6f31ac8b338b9524f85315068e4bc72bfadb1d19ff8ea6318f966a3b277a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 09:23:18,405 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 09:23:18,470 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 09:23:18,475 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 09:23:18,475 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 09:23:18,518 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 09:23:18,519 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 09:23:18,519 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 09:23:18,520 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 09:23:18,520 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 09:23:18,520 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 09:23:18,520 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 09:23:18,521 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 09:23:18,521 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 09:23:18,522 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 09:23:18,524 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 09:23:18,524 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 09:23:18,525 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 09:23:18,525 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 09:23:18,525 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 09:23:18,526 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 09:23:18,526 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 09:23:18,530 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 09:23:18,530 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 09:23:18,531 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 09:23:18,531 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 09:23:18,531 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 09:23:18,531 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 09:23:18,532 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 09:23:18,532 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 09:23:18,532 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 09:23:18,533 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 09:23:18,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 09:23:18,533 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 09:23:18,533 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 09:23:18,534 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 09:23:18,534 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 09:23:18,537 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 09:23:18,538 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 09:23:18,538 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 09:23:18,538 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 09:23:18,539 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 09:23:18,539 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 828b6f31ac8b338b9524f85315068e4bc72bfadb1d19ff8ea6318f966a3b277a [2024-10-24 09:23:18,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 09:23:18,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 09:23:18,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 09:23:18,821 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 09:23:18,822 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 09:23:18,823 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i [2024-10-24 09:23:20,308 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 09:23:20,475 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 09:23:20,476 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i [2024-10-24 09:23:20,482 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/866449bd0/fa08c71b06de40818f1de64533b7bc7a/FLAGdfa1f949f [2024-10-24 09:23:20,493 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/866449bd0/fa08c71b06de40818f1de64533b7bc7a [2024-10-24 09:23:20,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 09:23:20,496 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 09:23:20,497 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 09:23:20,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 09:23:20,501 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 09:23:20,501 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:23:20" (1/1) ... [2024-10-24 09:23:20,502 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ad917fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:20, skipping insertion in model container [2024-10-24 09:23:20,502 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:23:20" (1/1) ... [2024-10-24 09:23:20,525 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 09:23:20,710 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i[914,927] [2024-10-24 09:23:20,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 09:23:20,748 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 09:23:20,759 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i[914,927] [2024-10-24 09:23:20,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 09:23:20,795 INFO L204 MainTranslator]: Completed translation [2024-10-24 09:23:20,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:20 WrapperNode [2024-10-24 09:23:20,799 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 09:23:20,801 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 09:23:20,801 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 09:23:20,801 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 09:23:20,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:20" (1/1) ... [2024-10-24 09:23:20,814 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:20" (1/1) ... [2024-10-24 09:23:20,834 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2024-10-24 09:23:20,835 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 09:23:20,836 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 09:23:20,836 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 09:23:20,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 09:23:20,845 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:20" (1/1) ... [2024-10-24 09:23:20,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:20" (1/1) ... [2024-10-24 09:23:20,847 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:20" (1/1) ... [2024-10-24 09:23:20,859 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 09:23:20,860 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:20" (1/1) ... [2024-10-24 09:23:20,860 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:20" (1/1) ... [2024-10-24 09:23:20,865 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:20" (1/1) ... [2024-10-24 09:23:20,868 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:20" (1/1) ... [2024-10-24 09:23:20,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:20" (1/1) ... [2024-10-24 09:23:20,870 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:20" (1/1) ... [2024-10-24 09:23:20,872 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 09:23:20,873 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 09:23:20,873 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 09:23:20,873 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 09:23:20,874 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:20" (1/1) ... [2024-10-24 09:23:20,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 09:23:20,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 09:23:20,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 09:23:20,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 09:23:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 09:23:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 09:23:20,946 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 09:23:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 09:23:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 09:23:20,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 09:23:21,019 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 09:23:21,021 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 09:23:21,291 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-10-24 09:23:21,292 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 09:23:21,339 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 09:23:21,343 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 09:23:21,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:23:21 BoogieIcfgContainer [2024-10-24 09:23:21,343 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 09:23:21,345 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 09:23:21,345 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 09:23:21,348 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 09:23:21,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:23:20" (1/3) ... [2024-10-24 09:23:21,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6655279f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:23:21, skipping insertion in model container [2024-10-24 09:23:21,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:20" (2/3) ... [2024-10-24 09:23:21,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6655279f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:23:21, skipping insertion in model container [2024-10-24 09:23:21,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:23:21" (3/3) ... [2024-10-24 09:23:21,354 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-0.i [2024-10-24 09:23:21,379 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 09:23:21,383 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 09:23:21,471 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 09:23:21,476 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;@6fa3d629, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 09:23:21,477 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 09:23:21,481 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 27 states have internal predecessors, (38), 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) [2024-10-24 09:23:21,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-24 09:23:21,489 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:23:21,489 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] [2024-10-24 09:23:21,490 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:23:21,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:23:21,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1031052694, now seen corresponding path program 1 times [2024-10-24 09:23:21,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:23:21,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088803585] [2024-10-24 09:23:21,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:23:21,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:23:21,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:23:21,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:23:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:23:21,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:23:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:23:21,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:23:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:23:21,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 09:23:21,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:23:21,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 09:23:21,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:23:21,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 09:23:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:23:21,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 09:23:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:23:21,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 09:23:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:23:21,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 09:23:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:23:21,700 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-10-24 09:23:21,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:23:21,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088803585] [2024-10-24 09:23:21,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088803585] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:23:21,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:23:21,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 09:23:21,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756289537] [2024-10-24 09:23:21,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:23:21,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 09:23:21,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:23:21,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 09:23:21,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 09:23:21,734 INFO L87 Difference]: Start difference. First operand has 38 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 27 states have internal predecessors, (38), 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 10.0) internal successors, (20), 2 states have internal predecessors, (20), 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) [2024-10-24 09:23:21,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:23:21,782 INFO L93 Difference]: Finished difference Result 75 states and 120 transitions. [2024-10-24 09:23:21,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 09:23:21,785 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 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 62 [2024-10-24 09:23:21,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:23:21,793 INFO L225 Difference]: With dead ends: 75 [2024-10-24 09:23:21,793 INFO L226 Difference]: Without dead ends: 36 [2024-10-24 09:23:21,797 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 [2024-10-24 09:23:21,801 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 09:23:21,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 09:23:21,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-10-24 09:23:21,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-10-24 09:23:21,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.32) internal successors, (33), 25 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) [2024-10-24 09:23:21,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2024-10-24 09:23:21,834 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 62 [2024-10-24 09:23:21,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:23:21,834 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2024-10-24 09:23:21,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 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) [2024-10-24 09:23:21,835 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2024-10-24 09:23:21,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-24 09:23:21,836 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:23:21,837 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] [2024-10-24 09:23:21,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 09:23:21,837 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:23:21,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:23:21,838 INFO L85 PathProgramCache]: Analyzing trace with hash -712125228, now seen corresponding path program 1 times [2024-10-24 09:23:21,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:23:21,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398279440] [2024-10-24 09:23:21,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:23:21,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:23:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 09:23:21,929 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 09:23:22,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 09:23:22,066 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 09:23:22,066 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 09:23:22,068 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-24 09:23:22,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 09:23:22,072 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-24 09:23:22,119 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 09:23:22,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:23:22 BoogieIcfgContainer [2024-10-24 09:23:22,126 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 09:23:22,126 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 09:23:22,126 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 09:23:22,126 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 09:23:22,127 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:23:21" (3/4) ... [2024-10-24 09:23:22,128 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 09:23:22,129 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 09:23:22,130 INFO L158 Benchmark]: Toolchain (without parser) took 1633.78ms. Allocated memory is still 197.1MB. Free memory was 127.4MB in the beginning and 158.2MB in the end (delta: -30.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 09:23:22,131 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 125.8MB. Free memory is still 92.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 09:23:22,131 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.17ms. Allocated memory is still 197.1MB. Free memory was 126.8MB in the beginning and 113.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 09:23:22,132 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.64ms. Allocated memory is still 197.1MB. Free memory was 113.6MB in the beginning and 111.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 09:23:22,133 INFO L158 Benchmark]: Boogie Preprocessor took 36.43ms. Allocated memory is still 197.1MB. Free memory was 111.5MB in the beginning and 109.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 09:23:22,133 INFO L158 Benchmark]: RCFGBuilder took 470.76ms. Allocated memory is still 197.1MB. Free memory was 109.4MB in the beginning and 92.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-24 09:23:22,135 INFO L158 Benchmark]: TraceAbstraction took 780.77ms. Allocated memory is still 197.1MB. Free memory was 92.3MB in the beginning and 158.2MB in the end (delta: -65.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 09:23:22,135 INFO L158 Benchmark]: Witness Printer took 3.09ms. Allocated memory is still 197.1MB. Free memory is still 158.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 09:23:22,137 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 125.8MB. Free memory is still 92.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.17ms. Allocated memory is still 197.1MB. Free memory was 126.8MB in the beginning and 113.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.64ms. Allocated memory is still 197.1MB. Free memory was 113.6MB in the beginning and 111.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.43ms. Allocated memory is still 197.1MB. Free memory was 111.5MB in the beginning and 109.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 470.76ms. Allocated memory is still 197.1MB. Free memory was 109.4MB in the beginning and 92.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 780.77ms. Allocated memory is still 197.1MB. Free memory was 92.3MB in the beginning and 158.2MB in the end (delta: -65.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.09ms. Allocated memory is still 197.1MB. Free memory is still 158.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 82, overapproximation of someBinaryFLOATComparisonOperation at line 82, overapproximation of someBinaryArithmeticDOUBLEoperation at line 36. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 25.8; [L23] unsigned char var_1_2 = 1; [L24] double var_1_3 = 128.2; [L25] double var_1_4 = 15.4; [L26] double var_1_5 = 5.25; [L27] unsigned char var_1_6 = 0; [L28] float var_1_7 = 8.125; [L29] float var_1_8 = 0.4; [L30] float var_1_9 = 499.4; [L31] float var_1_10 = 63.16; [L86] isInitial = 1 [L87] FCALL initially() [L88] int k_loop; [L89] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=1579/25, var_1_1=129/5, var_1_2=1, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L89] COND TRUE k_loop < 1 [L90] FCALL updateLastVariables() [L91] CALL updateVariables() [L62] var_1_2 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L63] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L64] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L64] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L65] var_1_3 = __VERIFIER_nondet_double() [L66] CALL assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L66] RET assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L67] var_1_4 = __VERIFIER_nondet_double() [L68] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L68] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L69] var_1_6 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L70] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L71] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L71] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L72] var_1_8 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_9=2497/5] [L73] RET assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_9=2497/5] [L74] var_1_9 = __VERIFIER_nondet_float() [L75] CALL assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L75] RET assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L76] var_1_10 = __VERIFIER_nondet_float() [L77] CALL assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L77] RET assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L91] RET updateVariables() [L92] CALL step() [L35] COND TRUE ! var_1_2 [L36] var_1_1 = (var_1_3 - var_1_4) VAL [isInitial=1, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L40] unsigned char stepLocal_0 = var_1_4 < var_1_3; VAL [isInitial=1, stepLocal_0=0, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L41] COND FALSE !(stepLocal_0 || var_1_2) VAL [isInitial=1, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L48] unsigned char stepLocal_1 = var_1_1 <= (var_1_1 + var_1_3); VAL [isInitial=1, stepLocal_1=1, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L49] COND TRUE var_1_2 || stepLocal_1 [L50] var_1_7 = ((((5.5f) < (((((128.4f) > (var_1_3)) ? (128.4f) : (var_1_3))))) ? (5.5f) : (((((128.4f) > (var_1_3)) ? (128.4f) : (var_1_3)))))) VAL [isInitial=1, var_1_2=0, var_1_3=11/2, var_1_5=21/4, var_1_6=1, var_1_7=11/2] [L92] RET step() [L93] CALL, EXPR property() [L82-L83] return (((! var_1_2) ? (var_1_1 == ((double) (var_1_3 - var_1_4))) : (var_1_1 == ((double) ((((16.2) < (var_1_3)) ? (16.2) : (var_1_3)))))) && (((var_1_4 < var_1_3) || var_1_2) ? (var_1_2 ? (var_1_6 ? (var_1_5 == ((double) var_1_3)) : 1) : 1) : 1)) && ((var_1_2 || (var_1_1 <= (var_1_1 + var_1_3))) ? (var_1_7 == ((float) ((((5.5f) < (((((128.4f) > (var_1_3)) ? (128.4f) : (var_1_3))))) ? (5.5f) : (((((128.4f) > (var_1_3)) ? (128.4f) : (var_1_3)))))))) : (var_1_6 ? (var_1_7 == ((float) ((var_1_8 - var_1_9) + var_1_10))) : (var_1_2 ? (var_1_7 == ((float) var_1_9)) : 1))) ; [L93] RET, EXPR property() [L93] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_2=0, var_1_3=11/2, var_1_5=21/4, var_1_6=1, var_1_7=11/2] [L19] reach_error() VAL [isInitial=1, var_1_2=0, var_1_3=11/2, var_1_5=21/4, var_1_6=1, var_1_7=11/2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 38 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, 48 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 48 mSDtfsCounter, 5 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=38occurred 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, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 61 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 [2024-10-24 09:23:22,174 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 828b6f31ac8b338b9524f85315068e4bc72bfadb1d19ff8ea6318f966a3b277a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 09:23:24,276 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 09:23:24,344 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-24 09:23:24,349 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 09:23:24,349 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 09:23:24,369 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 09:23:24,369 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 09:23:24,370 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 09:23:24,370 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 09:23:24,370 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 09:23:24,370 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 09:23:24,371 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 09:23:24,371 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 09:23:24,373 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 09:23:24,373 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 09:23:24,374 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 09:23:24,374 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 09:23:24,374 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 09:23:24,376 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 09:23:24,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 09:23:24,377 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 09:23:24,377 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 09:23:24,377 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 09:23:24,377 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 09:23:24,378 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 09:23:24,378 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 09:23:24,378 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 09:23:24,378 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 09:23:24,378 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 09:23:24,378 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 09:23:24,379 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 09:23:24,379 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 09:23:24,379 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 09:23:24,379 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 09:23:24,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 09:23:24,379 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 09:23:24,389 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 09:23:24,390 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 09:23:24,390 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 09:23:24,390 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 09:23:24,390 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 09:23:24,390 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 09:23:24,391 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 09:23:24,391 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 09:23:24,391 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 09:23:24,391 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 828b6f31ac8b338b9524f85315068e4bc72bfadb1d19ff8ea6318f966a3b277a [2024-10-24 09:23:24,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 09:23:24,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 09:23:24,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 09:23:24,711 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 09:23:24,713 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 09:23:24,715 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i [2024-10-24 09:23:26,115 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 09:23:26,320 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 09:23:26,321 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i [2024-10-24 09:23:26,331 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03d522411/cccf49c8b5944c88841e1889d01000a7/FLAG39cad367f [2024-10-24 09:23:26,706 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03d522411/cccf49c8b5944c88841e1889d01000a7 [2024-10-24 09:23:26,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 09:23:26,709 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 09:23:26,710 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 09:23:26,710 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 09:23:26,715 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 09:23:26,715 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:23:26" (1/1) ... [2024-10-24 09:23:26,716 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f826235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:26, skipping insertion in model container [2024-10-24 09:23:26,716 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:23:26" (1/1) ... [2024-10-24 09:23:26,734 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 09:23:26,904 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i[914,927] [2024-10-24 09:23:26,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 09:23:26,971 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 09:23:26,984 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i[914,927] [2024-10-24 09:23:27,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 09:23:27,027 INFO L204 MainTranslator]: Completed translation [2024-10-24 09:23:27,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:27 WrapperNode [2024-10-24 09:23:27,028 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 09:23:27,029 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 09:23:27,029 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 09:23:27,029 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 09:23:27,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:27" (1/1) ... [2024-10-24 09:23:27,062 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:27" (1/1) ... [2024-10-24 09:23:27,086 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2024-10-24 09:23:27,087 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 09:23:27,088 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 09:23:27,088 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 09:23:27,088 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 09:23:27,097 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:27" (1/1) ... [2024-10-24 09:23:27,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:27" (1/1) ... [2024-10-24 09:23:27,104 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:27" (1/1) ... [2024-10-24 09:23:27,120 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 09:23:27,121 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:27" (1/1) ... [2024-10-24 09:23:27,121 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:27" (1/1) ... [2024-10-24 09:23:27,130 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:27" (1/1) ... [2024-10-24 09:23:27,136 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:27" (1/1) ... [2024-10-24 09:23:27,138 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:27" (1/1) ... [2024-10-24 09:23:27,139 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:27" (1/1) ... [2024-10-24 09:23:27,145 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 09:23:27,145 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 09:23:27,145 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 09:23:27,146 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 09:23:27,146 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:27" (1/1) ... [2024-10-24 09:23:27,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 09:23:27,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 09:23:27,187 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 09:23:27,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 09:23:27,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 09:23:27,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 09:23:27,232 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 09:23:27,232 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 09:23:27,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 09:23:27,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 09:23:27,306 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 09:23:27,308 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 09:23:29,136 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-10-24 09:23:29,136 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 09:23:29,174 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 09:23:29,175 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 09:23:29,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:23:29 BoogieIcfgContainer [2024-10-24 09:23:29,175 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 09:23:29,177 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 09:23:29,177 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 09:23:29,179 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 09:23:29,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:23:26" (1/3) ... [2024-10-24 09:23:29,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e414ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:23:29, skipping insertion in model container [2024-10-24 09:23:29,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:23:27" (2/3) ... [2024-10-24 09:23:29,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e414ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:23:29, skipping insertion in model container [2024-10-24 09:23:29,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:23:29" (3/3) ... [2024-10-24 09:23:29,182 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-0.i [2024-10-24 09:23:29,194 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 09:23:29,194 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 09:23:29,281 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 09:23:29,298 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;@4f9b7692, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 09:23:29,299 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 09:23:29,306 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 27 states have internal predecessors, (38), 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) [2024-10-24 09:23:29,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-24 09:23:29,319 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:23:29,320 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] [2024-10-24 09:23:29,320 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:23:29,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:23:29,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1031052694, now seen corresponding path program 1 times [2024-10-24 09:23:29,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 09:23:29,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360047007] [2024-10-24 09:23:29,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:23:29,346 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 09:23:29,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 09:23:29,349 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 09:23:29,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-24 09:23:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:23:29,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 09:23:29,701 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 09:23:29,740 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-10-24 09:23:29,740 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 09:23:29,741 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 09:23:29,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360047007] [2024-10-24 09:23:29,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360047007] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:23:29,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:23:29,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 09:23:29,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770576447] [2024-10-24 09:23:29,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:23:29,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 09:23:29,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 09:23:29,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 09:23:29,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 09:23:29,790 INFO L87 Difference]: Start difference. First operand has 38 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 27 states have internal predecessors, (38), 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 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-24 09:23:33,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-24 09:23:33,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:23:33,176 INFO L93 Difference]: Finished difference Result 75 states and 120 transitions. [2024-10-24 09:23:33,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 09:23:33,180 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (9), 2 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 62 [2024-10-24 09:23:33,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:23:33,187 INFO L225 Difference]: With dead ends: 75 [2024-10-24 09:23:33,187 INFO L226 Difference]: Without dead ends: 36 [2024-10-24 09:23:33,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 09:23:33,192 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-10-24 09:23:33,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-10-24 09:23:33,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-10-24 09:23:33,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-10-24 09:23:33,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.32) internal successors, (33), 25 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) [2024-10-24 09:23:33,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2024-10-24 09:23:33,227 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 62 [2024-10-24 09:23:33,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:23:33,228 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2024-10-24 09:23:33,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-24 09:23:33,228 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2024-10-24 09:23:33,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-24 09:23:33,231 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:23:33,231 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] [2024-10-24 09:23:33,245 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-24 09:23:33,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 09:23:33,432 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:23:33,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:23:33,433 INFO L85 PathProgramCache]: Analyzing trace with hash -712125228, now seen corresponding path program 1 times [2024-10-24 09:23:33,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 09:23:33,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649459995] [2024-10-24 09:23:33,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:23:33,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 09:23:33,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 09:23:33,437 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 09:23:33,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-24 09:23:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:23:33,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-24 09:23:33,764 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 09:24:06,167 WARN L286 SmtUtils]: Spent 11.66s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-24 09:24:34,641 WARN L286 SmtUtils]: Spent 7.69s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)