./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-58.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-58.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 9c42f4f2be0dcf024bccd221a1bf3d1e29db98dcd801b03fa6d425f50f1c2522 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 23:53:56,305 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:53:56,388 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 23:53:56,391 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:53:56,392 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 23:53:56,418 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:53:56,419 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 23:53:56,419 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 23:53:56,420 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 23:53:56,421 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 23:53:56,422 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:53:56,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 23:53:56,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:53:56,423 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:53:56,425 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 23:53:56,425 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:53:56,425 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:53:56,426 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:53:56,426 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:53:56,426 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:53:56,426 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:53:56,427 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:53:56,427 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:53:56,427 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:53:56,428 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:53:56,428 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:53:56,428 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:53:56,429 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:53:56,429 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:53:56,429 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 23:53:56,429 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 23:53:56,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 23:53:56,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 23:53:56,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:53:56,434 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:53:56,435 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:53:56,435 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 23:53:56,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:53:56,435 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 23:53:56,436 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 23:53:56,436 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 23:53:56,437 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 23:53:56,437 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c42f4f2be0dcf024bccd221a1bf3d1e29db98dcd801b03fa6d425f50f1c2522 [2024-11-08 23:53:56,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:53:56,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:53:56,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:53:56,691 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:53:56,692 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:53:56,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-58.i [2024-11-08 23:53:58,073 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:53:58,273 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:53:58,274 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-58.i [2024-11-08 23:53:58,281 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9038501b2/6daed6b378ba4cb2bfd088e004a34082/FLAGc5dba85b1 [2024-11-08 23:53:58,653 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9038501b2/6daed6b378ba4cb2bfd088e004a34082 [2024-11-08 23:53:58,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:53:58,657 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:53:58,658 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:53:58,658 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:53:58,663 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:53:58,664 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:53:58" (1/1) ... [2024-11-08 23:53:58,665 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@262d902d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:58, skipping insertion in model container [2024-11-08 23:53:58,665 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:53:58" (1/1) ... [2024-11-08 23:53:58,687 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:53:58,861 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-58.i[915,928] [2024-11-08 23:53:58,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:53:58,959 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:53:58,973 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-58.i[915,928] [2024-11-08 23:53:58,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:53:59,010 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:53:59,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:59 WrapperNode [2024-11-08 23:53:59,010 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:53:59,011 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:53:59,012 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:53:59,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:53:59,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:59" (1/1) ... [2024-11-08 23:53:59,034 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:59" (1/1) ... [2024-11-08 23:53:59,080 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 96 [2024-11-08 23:53:59,081 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:53:59,082 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:53:59,082 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:53:59,082 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:53:59,091 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:59" (1/1) ... [2024-11-08 23:53:59,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:59" (1/1) ... [2024-11-08 23:53:59,094 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:59" (1/1) ... [2024-11-08 23:53:59,106 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]. [2024-11-08 23:53:59,107 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:59" (1/1) ... [2024-11-08 23:53:59,107 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:59" (1/1) ... [2024-11-08 23:53:59,117 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:59" (1/1) ... [2024-11-08 23:53:59,120 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:59" (1/1) ... [2024-11-08 23:53:59,122 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:59" (1/1) ... [2024-11-08 23:53:59,123 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:59" (1/1) ... [2024-11-08 23:53:59,126 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:53:59,127 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:53:59,127 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:53:59,127 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:53:59,128 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:59" (1/1) ... [2024-11-08 23:53:59,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 23:53:59,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 23:53:59,170 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) [2024-11-08 23:53:59,177 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 [2024-11-08 23:53:59,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:53:59,217 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 23:53:59,217 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 23:53:59,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 23:53:59,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:53:59,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:53:59,297 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:53:59,300 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:53:59,553 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-08 23:53:59,553 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:53:59,567 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:53:59,569 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 23:53:59,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:53:59 BoogieIcfgContainer [2024-11-08 23:53:59,569 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:53:59,572 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 23:53:59,572 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 23:53:59,575 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 23:53:59,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:53:58" (1/3) ... [2024-11-08 23:53:59,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d8b1584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:53:59, skipping insertion in model container [2024-11-08 23:53:59,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:59" (2/3) ... [2024-11-08 23:53:59,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d8b1584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:53:59, skipping insertion in model container [2024-11-08 23:53:59,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:53:59" (3/3) ... [2024-11-08 23:53:59,578 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-58.i [2024-11-08 23:53:59,590 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 23:53:59,590 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 23:53:59,642 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 23:53:59,650 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;@580c3ae1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 23:53:59,650 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 23:53:59,656 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 23:53:59,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 23:53:59,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:53:59,667 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:53:59,668 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:53:59,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:53:59,673 INFO L85 PathProgramCache]: Analyzing trace with hash -576999655, now seen corresponding path program 1 times [2024-11-08 23:53:59,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:53:59,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717287919] [2024-11-08 23:53:59,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:53:59,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:53:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 23:53:59,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1212689733] [2024-11-08 23:53:59,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:53:59,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 23:53:59,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 23:53:59,912 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 23:53:59,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 23:54:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:54:00,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 23:54:00,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:54:00,858 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 182 proven. 27 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-08 23:54:00,859 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 23:54:01,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:54:01,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717287919] [2024-11-08 23:54:01,012 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 23:54:01,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212689733] [2024-11-08 23:54:01,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212689733] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 23:54:01,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 23:54:01,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-08 23:54:01,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043866853] [2024-11-08 23:54:01,018 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 23:54:01,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 23:54:01,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:54:01,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 23:54:01,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=166, Unknown=1, NotChecked=0, Total=210 [2024-11-08 23:54:01,050 INFO L87 Difference]: Start difference. First operand has 45 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 23:54:01,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:54:01,746 INFO L93 Difference]: Finished difference Result 134 states and 224 transitions. [2024-11-08 23:54:01,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 23:54:01,749 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 81 [2024-11-08 23:54:01,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:54:01,758 INFO L225 Difference]: With dead ends: 134 [2024-11-08 23:54:01,759 INFO L226 Difference]: Without dead ends: 92 [2024-11-08 23:54:01,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=572, Unknown=1, NotChecked=0, Total=756 [2024-11-08 23:54:01,768 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 93 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 47 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 23:54:01,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 239 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 234 Invalid, 4 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 23:54:01,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-08 23:54:01,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 75. [2024-11-08 23:54:01,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 46 states have (on average 1.173913043478261) internal successors, (54), 46 states have internal predecessors, (54), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-08 23:54:01,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 102 transitions. [2024-11-08 23:54:01,832 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 102 transitions. Word has length 81 [2024-11-08 23:54:01,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:54:01,833 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 102 transitions. [2024-11-08 23:54:01,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 23:54:01,834 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 102 transitions. [2024-11-08 23:54:01,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 23:54:01,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:54:01,836 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:54:01,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 23:54:02,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-08 23:54:02,041 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:54:02,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:54:02,042 INFO L85 PathProgramCache]: Analyzing trace with hash 103058715, now seen corresponding path program 1 times [2024-11-08 23:54:02,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:54:02,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015909620] [2024-11-08 23:54:02,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:54:02,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:54:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:54:03,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:54:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:54:03,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:54:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:54:03,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:54:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:54:03,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:54:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:54:03,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:54:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:54:03,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:54:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:54:03,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:54:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:54:03,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:54:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:54:03,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 23:54:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:54:03,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:54:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:54:03,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:54:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:54:03,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:54:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:54:03,496 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 23:54:03,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:54:03,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015909620] [2024-11-08 23:54:03,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015909620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:54:03,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:54:03,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 23:54:03,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585308419] [2024-11-08 23:54:03,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:54:03,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 23:54:03,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:54:03,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 23:54:03,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 23:54:03,500 INFO L87 Difference]: Start difference. First operand 75 states and 102 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 23:54:03,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:54:03,820 INFO L93 Difference]: Finished difference Result 103 states and 134 transitions. [2024-11-08 23:54:03,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 23:54:03,821 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 81 [2024-11-08 23:54:03,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:54:03,823 INFO L225 Difference]: With dead ends: 103 [2024-11-08 23:54:03,823 INFO L226 Difference]: Without dead ends: 101 [2024-11-08 23:54:03,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-08 23:54:03,824 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 40 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 23:54:03,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 298 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 23:54:03,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-08 23:54:03,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 82. [2024-11-08 23:54:03,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 53 states have internal predecessors, (63), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-08 23:54:03,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 111 transitions. [2024-11-08 23:54:03,838 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 111 transitions. Word has length 81 [2024-11-08 23:54:03,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:54:03,839 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 111 transitions. [2024-11-08 23:54:03,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 23:54:03,839 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 111 transitions. [2024-11-08 23:54:03,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 23:54:03,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:54:03,841 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:54:03,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 23:54:03,842 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:54:03,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:54:03,842 INFO L85 PathProgramCache]: Analyzing trace with hash 104905757, now seen corresponding path program 1 times [2024-11-08 23:54:03,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:54:03,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399899318] [2024-11-08 23:54:03,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:54:03,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:54:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 23:54:03,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1612757261] [2024-11-08 23:54:03,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:54:03,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 23:54:03,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 23:54:03,883 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 23:54:03,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 23:54:03,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:54:03,981 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:54:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:54:04,048 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 23:54:04,048 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 23:54:04,050 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 23:54:04,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 23:54:04,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-08 23:54:04,256 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-08 23:54:04,303 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 23:54:04,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 11:54:04 BoogieIcfgContainer [2024-11-08 23:54:04,306 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 23:54:04,307 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:54:04,307 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:54:04,307 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:54:04,308 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:53:59" (3/4) ... [2024-11-08 23:54:04,314 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:54:04,315 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:54:04,315 INFO L158 Benchmark]: Toolchain (without parser) took 5658.41ms. Allocated memory was 174.1MB in the beginning and 220.2MB in the end (delta: 46.1MB). Free memory was 107.7MB in the beginning and 138.2MB in the end (delta: -30.5MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2024-11-08 23:54:04,316 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 107.0MB. Free memory is still 69.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:54:04,316 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.50ms. Allocated memory is still 174.1MB. Free memory was 107.6MB in the beginning and 144.9MB in the end (delta: -37.3MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2024-11-08 23:54:04,316 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.42ms. Allocated memory is still 174.1MB. Free memory was 144.9MB in the beginning and 142.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 23:54:04,317 INFO L158 Benchmark]: Boogie Preprocessor took 44.48ms. Allocated memory is still 174.1MB. Free memory was 142.2MB in the beginning and 138.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 23:54:04,320 INFO L158 Benchmark]: RCFGBuilder took 443.35ms. Allocated memory is still 174.1MB. Free memory was 138.6MB in the beginning and 121.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 23:54:04,321 INFO L158 Benchmark]: TraceAbstraction took 4734.44ms. Allocated memory was 174.1MB in the beginning and 220.2MB in the end (delta: 46.1MB). Free memory was 121.2MB in the beginning and 139.2MB in the end (delta: -18.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-08 23:54:04,321 INFO L158 Benchmark]: Witness Printer took 7.68ms. Allocated memory is still 220.2MB. Free memory was 139.2MB in the beginning and 138.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:54:04,324 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 107.0MB. Free memory is still 69.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.50ms. Allocated memory is still 174.1MB. Free memory was 107.6MB in the beginning and 144.9MB in the end (delta: -37.3MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.42ms. Allocated memory is still 174.1MB. Free memory was 144.9MB in the beginning and 142.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.48ms. Allocated memory is still 174.1MB. Free memory was 142.2MB in the beginning and 138.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 443.35ms. Allocated memory is still 174.1MB. Free memory was 138.6MB in the beginning and 121.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4734.44ms. Allocated memory was 174.1MB in the beginning and 220.2MB in the end (delta: 46.1MB). Free memory was 121.2MB in the beginning and 139.2MB in the end (delta: -18.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 7.68ms. Allocated memory is still 220.2MB. Free memory was 139.2MB in the beginning and 138.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 90. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 64; [L23] signed long int var_1_2 = 8; [L24] unsigned char var_1_3 = 25; [L25] unsigned char var_1_4 = 100; [L26] float var_1_5 = 99999999999.5; [L27] unsigned char var_1_6 = 4; [L28] float var_1_7 = 63.75; [L29] unsigned char var_1_9 = 0; [L30] unsigned char var_1_10 = 1; [L31] unsigned char last_1_var_1_1 = 64; [L32] unsigned char last_1_var_1_9 = 0; VAL [isInitial=0, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=8, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L94] isInitial = 1 [L95] FCALL initially() [L96] COND TRUE 1 [L97] CALL updateLastVariables() [L86] last_1_var_1_1 = var_1_1 [L87] last_1_var_1_9 = var_1_9 VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=8, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L97] RET updateLastVariables() [L98] CALL updateVariables() [L66] var_1_2 = __VERIFIER_nondet_long() [L67] CALL assume_abort_if_not(var_1_2 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L67] RET assume_abort_if_not(var_1_2 >= -2147483648) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L68] CALL assume_abort_if_not(var_1_2 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L68] RET assume_abort_if_not(var_1_2 <= 2147483647) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L69] var_1_3 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L70] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L71] CALL assume_abort_if_not(var_1_3 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L71] RET assume_abort_if_not(var_1_3 <= 254) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L72] var_1_4 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_4 >= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L73] RET assume_abort_if_not(var_1_4 >= 63) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L74] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L74] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L75] var_1_6 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L76] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L77] CALL assume_abort_if_not(var_1_6 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L77] RET assume_abort_if_not(var_1_6 <= 255) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L78] CALL assume_abort_if_not(var_1_6 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_7=255/4, var_1_9=0] [L78] RET assume_abort_if_not(var_1_6 != 0) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_7=255/4, var_1_9=0] [L79] var_1_7 = __VERIFIER_nondet_float() [L80] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L80] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L81] var_1_10 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_10 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L82] RET assume_abort_if_not(var_1_10 >= 1) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L83] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L83] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L98] RET updateVariables() [L99] CALL step() [L36] signed long int stepLocal_3 = last_1_var_1_1; [L37] signed long int stepLocal_2 = var_1_3 / var_1_6; VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_2=0, stepLocal_3=64, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L38] COND TRUE var_1_3 < stepLocal_3 VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_2=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L39] COND FALSE !(var_1_4 < stepLocal_2) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L49] signed long int stepLocal_1 = var_1_2; [L50] signed long int stepLocal_0 = var_1_2; VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_0=-256, stepLocal_1=-256, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L51] COND TRUE stepLocal_1 <= -256 [L52] var_1_1 = ((((var_1_3) < (((var_1_4 - 8) + 5))) ? (var_1_3) : (((var_1_4 - 8) + 5)))) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_0=-256, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L60] unsigned char stepLocal_4 = (var_1_1 + 64u) != var_1_4; VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_0=-256, stepLocal_4=0, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L61] COND FALSE !((var_1_5 >= var_1_7) || stepLocal_4) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_0=-256, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L99] RET step() [L100] CALL, EXPR property() [L90-L91] return (((var_1_2 <= -256) ? (var_1_1 == ((unsigned char) ((((var_1_3) < (((var_1_4 - 8) + 5))) ? (var_1_3) : (((var_1_4 - 8) + 5)))))) : ((var_1_4 <= var_1_2) ? (var_1_1 == ((unsigned char) var_1_3)) : (var_1_1 == ((unsigned char) var_1_3)))) && ((var_1_3 < last_1_var_1_1) ? ((var_1_4 < (var_1_3 / var_1_6)) ? (var_1_5 == ((float) (var_1_7 - 16.55f))) : 1) : (last_1_var_1_9 ? (var_1_5 == ((float) var_1_7)) : (var_1_5 == ((float) var_1_7))))) && (((var_1_5 >= var_1_7) || ((var_1_1 + 64u) != var_1_4)) ? (var_1_9 == ((unsigned char) var_1_10)) : 1) ; VAL [\result=0, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L100] RET, EXPR property() [L100] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 3, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 537 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 456 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 369 IncrementalHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 81 mSDtfsCounter, 369 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=2, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 36 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 405 NumberOfCodeBlocks, 405 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 160 ConstructedInterpolants, 2 QuantifiedInterpolants, 1069 SizeOfPredicates, 5 NumberOfNonLiveVariables, 198 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 501/528 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 23:54:04,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-58.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 9c42f4f2be0dcf024bccd221a1bf3d1e29db98dcd801b03fa6d425f50f1c2522 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 23:54:06,510 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:54:06,589 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 23:54:06,601 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:54:06,602 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 23:54:06,635 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:54:06,638 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 23:54:06,638 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 23:54:06,638 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 23:54:06,639 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 23:54:06,639 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:54:06,640 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 23:54:06,640 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:54:06,641 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:54:06,643 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 23:54:06,643 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:54:06,643 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:54:06,643 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:54:06,644 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:54:06,644 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:54:06,644 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:54:06,645 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:54:06,645 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:54:06,645 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 23:54:06,646 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 23:54:06,646 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:54:06,646 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 23:54:06,646 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:54:06,647 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:54:06,647 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:54:06,647 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:54:06,647 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 23:54:06,648 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 23:54:06,648 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 23:54:06,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 23:54:06,649 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:54:06,649 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:54:06,650 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:54:06,650 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-08 23:54:06,650 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:54:06,650 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 23:54:06,651 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 23:54:06,651 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 23:54:06,652 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 23:54:06,652 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c42f4f2be0dcf024bccd221a1bf3d1e29db98dcd801b03fa6d425f50f1c2522 [2024-11-08 23:54:06,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:54:06,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:54:06,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:54:06,973 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:54:06,973 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:54:06,974 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-58.i [2024-11-08 23:54:08,393 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:54:08,590 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:54:08,591 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-58.i [2024-11-08 23:54:08,601 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5157c55e7/0ee1007cad0849209d27fe6b3fd5d10b/FLAG01b36f485 [2024-11-08 23:54:08,973 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5157c55e7/0ee1007cad0849209d27fe6b3fd5d10b [2024-11-08 23:54:08,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:54:08,976 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:54:08,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:54:08,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:54:08,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:54:08,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:54:08" (1/1) ... [2024-11-08 23:54:08,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa0e094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:54:08, skipping insertion in model container [2024-11-08 23:54:08,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:54:08" (1/1) ... [2024-11-08 23:54:09,013 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:54:09,214 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-58.i[915,928] [2024-11-08 23:54:09,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:54:09,280 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:54:09,293 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-58.i[915,928] [2024-11-08 23:54:09,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:54:09,346 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:54:09,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:54:09 WrapperNode [2024-11-08 23:54:09,348 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:54:09,349 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:54:09,349 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:54:09,349 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:54:09,357 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:54:09" (1/1) ... [2024-11-08 23:54:09,369 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:54:09" (1/1) ... [2024-11-08 23:54:09,391 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 95 [2024-11-08 23:54:09,392 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:54:09,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:54:09,392 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:54:09,393 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:54:09,402 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:54:09" (1/1) ... [2024-11-08 23:54:09,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:54:09" (1/1) ... [2024-11-08 23:54:09,406 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:54:09" (1/1) ... [2024-11-08 23:54:09,431 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]. [2024-11-08 23:54:09,432 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:54:09" (1/1) ... [2024-11-08 23:54:09,433 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:54:09" (1/1) ... [2024-11-08 23:54:09,444 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:54:09" (1/1) ... [2024-11-08 23:54:09,447 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:54:09" (1/1) ... [2024-11-08 23:54:09,453 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:54:09" (1/1) ... [2024-11-08 23:54:09,454 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:54:09" (1/1) ... [2024-11-08 23:54:09,461 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:54:09,462 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:54:09,464 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:54:09,464 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:54:09,465 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:54:09" (1/1) ... [2024-11-08 23:54:09,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 23:54:09,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 23:54:09,496 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) [2024-11-08 23:54:09,504 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 [2024-11-08 23:54:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:54:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 23:54:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 23:54:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 23:54:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:54:09,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:54:09,644 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:54:09,646 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:54:10,040 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-08 23:54:10,040 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:54:10,059 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:54:10,059 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 23:54:10,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:54:10 BoogieIcfgContainer [2024-11-08 23:54:10,060 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:54:10,062 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 23:54:10,062 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 23:54:10,066 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 23:54:10,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:54:08" (1/3) ... [2024-11-08 23:54:10,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2afc9ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:54:10, skipping insertion in model container [2024-11-08 23:54:10,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:54:09" (2/3) ... [2024-11-08 23:54:10,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2afc9ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:54:10, skipping insertion in model container [2024-11-08 23:54:10,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:54:10" (3/3) ... [2024-11-08 23:54:10,069 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-58.i [2024-11-08 23:54:10,084 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 23:54:10,084 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 23:54:10,149 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 23:54:10,156 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;@7f64ce40, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 23:54:10,156 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 23:54:10,160 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 23:54:10,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 23:54:10,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:54:10,169 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:54:10,170 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:54:10,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:54:10,174 INFO L85 PathProgramCache]: Analyzing trace with hash -576999655, now seen corresponding path program 1 times [2024-11-08 23:54:10,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 23:54:10,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1391150724] [2024-11-08 23:54:10,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:54:10,187 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 23:54:10,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 23:54:10,190 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 23:54:10,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-08 23:54:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:54:10,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 23:54:10,408 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:54:11,852 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 179 proven. 39 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-08 23:54:11,852 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 23:54:31,119 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 23:54:31,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1391150724] [2024-11-08 23:54:31,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1391150724] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 23:54:31,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1826961008] [2024-11-08 23:54:31,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:54:31,120 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:54:31,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-08 23:54:31,123 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:54:31,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-08 23:54:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:54:31,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 23:54:31,477 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:54:54,115 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 181 proven. 36 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-08 23:54:54,115 INFO L311 TraceCheckSpWp]: Computing backward predicates...