./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.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 5cfd8244917467985e1ec9aab123eb53d7984fa345597a11e6475c4a60dfdb5a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 10:53:42,139 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 10:53:42,210 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 10:53:42,215 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 10:53:42,218 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 10:53:42,238 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 10:53:42,239 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 10:53:42,239 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 10:53:42,239 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 10:53:42,240 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 10:53:42,240 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 10:53:42,240 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 10:53:42,240 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 10:53:42,241 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 10:53:42,241 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 10:53:42,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 10:53:42,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 10:53:42,242 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 10:53:42,242 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 10:53:42,242 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 10:53:42,242 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 10:53:42,245 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 10:53:42,245 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 10:53:42,246 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 10:53:42,246 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 10:53:42,246 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 10:53:42,246 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 10:53:42,246 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 10:53:42,247 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 10:53:42,247 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 10:53:42,247 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 10:53:42,247 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 10:53:42,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 10:53:42,247 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 10:53:42,248 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 10:53:42,248 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 10:53:42,252 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 10:53:42,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 10:53:42,252 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 10:53:42,252 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 10:53:42,252 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 10:53:42,253 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 10:53:42,253 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5cfd8244917467985e1ec9aab123eb53d7984fa345597a11e6475c4a60dfdb5a [2024-11-22 10:53:42,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 10:53:42,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 10:53:42,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 10:53:42,481 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 10:53:42,482 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 10:53:42,483 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i [2024-11-22 10:53:43,828 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 10:53:44,012 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 10:53:44,013 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i [2024-11-22 10:53:44,019 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/698a94da4/e1b382fa444b4f1b9dd98e3ef30d62a4/FLAGae0341bc7 [2024-11-22 10:53:44,034 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/698a94da4/e1b382fa444b4f1b9dd98e3ef30d62a4 [2024-11-22 10:53:44,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 10:53:44,037 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 10:53:44,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 10:53:44,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 10:53:44,042 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 10:53:44,043 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:53:44" (1/1) ... [2024-11-22 10:53:44,043 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36d9cd88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:44, skipping insertion in model container [2024-11-22 10:53:44,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:53:44" (1/1) ... [2024-11-22 10:53:44,065 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 10:53:44,213 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-64.i[915,928] [2024-11-22 10:53:44,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 10:53:44,290 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 10:53:44,302 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-64.i[915,928] [2024-11-22 10:53:44,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 10:53:44,353 INFO L204 MainTranslator]: Completed translation [2024-11-22 10:53:44,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:44 WrapperNode [2024-11-22 10:53:44,353 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 10:53:44,354 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 10:53:44,354 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 10:53:44,354 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 10:53:44,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:44" (1/1) ... [2024-11-22 10:53:44,386 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:44" (1/1) ... [2024-11-22 10:53:44,445 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 117 [2024-11-22 10:53:44,446 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 10:53:44,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 10:53:44,447 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 10:53:44,447 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 10:53:44,458 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:44" (1/1) ... [2024-11-22 10:53:44,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:44" (1/1) ... [2024-11-22 10:53:44,461 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:44" (1/1) ... [2024-11-22 10:53:44,479 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]. [2024-11-22 10:53:44,480 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:44" (1/1) ... [2024-11-22 10:53:44,480 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:44" (1/1) ... [2024-11-22 10:53:44,486 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:44" (1/1) ... [2024-11-22 10:53:44,490 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:44" (1/1) ... [2024-11-22 10:53:44,496 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:44" (1/1) ... [2024-11-22 10:53:44,498 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:44" (1/1) ... [2024-11-22 10:53:44,503 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 10:53:44,504 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 10:53:44,504 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 10:53:44,504 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 10:53:44,505 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:44" (1/1) ... [2024-11-22 10:53:44,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 10:53:44,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 10:53:44,537 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) [2024-11-22 10:53:44,543 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 [2024-11-22 10:53:44,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 10:53:44,580 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 10:53:44,581 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 10:53:44,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 10:53:44,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 10:53:44,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 10:53:44,644 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 10:53:44,646 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 10:53:44,927 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-22 10:53:44,927 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 10:53:44,942 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 10:53:44,944 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 10:53:44,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:53:44 BoogieIcfgContainer [2024-11-22 10:53:44,945 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 10:53:44,947 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 10:53:44,947 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 10:53:44,950 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 10:53:44,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:53:44" (1/3) ... [2024-11-22 10:53:44,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41fe2310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:53:44, skipping insertion in model container [2024-11-22 10:53:44,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:44" (2/3) ... [2024-11-22 10:53:44,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41fe2310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:53:44, skipping insertion in model container [2024-11-22 10:53:44,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:53:44" (3/3) ... [2024-11-22 10:53:44,953 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-64.i [2024-11-22 10:53:44,967 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 10:53:44,968 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 10:53:45,034 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 10:53:45,039 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;@7e70e929, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 10:53:45,039 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 10:53:45,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 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) [2024-11-22 10:53:45,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-22 10:53:45,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 10:53:45,055 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, 1] [2024-11-22 10:53:45,055 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 10:53:45,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 10:53:45,060 INFO L85 PathProgramCache]: Analyzing trace with hash -531792171, now seen corresponding path program 1 times [2024-11-22 10:53:45,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 10:53:45,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991222070] [2024-11-22 10:53:45,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 10:53:45,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 10:53:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 10:53:45,308 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-22 10:53:45,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 10:53:45,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991222070] [2024-11-22 10:53:45,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991222070] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 10:53:45,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849691760] [2024-11-22 10:53:45,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 10:53:45,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 10:53:45,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 10:53:45,313 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) [2024-11-22 10:53:45,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 10:53:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 10:53:45,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 10:53:45,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 10:53:45,425 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-22 10:53:45,426 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 10:53:45,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849691760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 10:53:45,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 10:53:45,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 10:53:45,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818952477] [2024-11-22 10:53:45,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 10:53:45,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 10:53:45,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 10:53:45,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 10:53:45,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 10:53:45,454 INFO L87 Difference]: Start difference. First operand has 54 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 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 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 10:53:45,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 10:53:45,476 INFO L93 Difference]: Finished difference Result 99 states and 160 transitions. [2024-11-22 10:53:45,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 10:53:45,478 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 82 [2024-11-22 10:53:45,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 10:53:45,483 INFO L225 Difference]: With dead ends: 99 [2024-11-22 10:53:45,483 INFO L226 Difference]: Without dead ends: 48 [2024-11-22 10:53:45,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 10:53:45,491 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 10:53:45,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 10:53:45,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-22 10:53:45,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-11-22 10:53:45,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 34 states have internal predecessors, (43), 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) [2024-11-22 10:53:45,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2024-11-22 10:53:45,531 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 67 transitions. Word has length 82 [2024-11-22 10:53:45,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 10:53:45,532 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 67 transitions. [2024-11-22 10:53:45,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 10:53:45,532 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 67 transitions. [2024-11-22 10:53:45,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-22 10:53:45,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 10:53:45,536 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, 1] [2024-11-22 10:53:45,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 10:53:45,737 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 [2024-11-22 10:53:45,737 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 10:53:45,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 10:53:45,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1140243371, now seen corresponding path program 1 times [2024-11-22 10:53:45,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 10:53:45,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003671049] [2024-11-22 10:53:45,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 10:53:45,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 10:53:45,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 10:53:46,426 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 10:53:46,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 10:53:46,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003671049] [2024-11-22 10:53:46,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003671049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 10:53:46,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 10:53:46,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 10:53:46,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574667980] [2024-11-22 10:53:46,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 10:53:46,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 10:53:46,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 10:53:46,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 10:53:46,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 10:53:46,429 INFO L87 Difference]: Start difference. First operand 48 states and 67 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2024-11-22 10:53:46,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 10:53:46,688 INFO L93 Difference]: Finished difference Result 153 states and 216 transitions. [2024-11-22 10:53:46,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 10:53:46,689 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 82 [2024-11-22 10:53:46,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 10:53:46,691 INFO L225 Difference]: With dead ends: 153 [2024-11-22 10:53:46,691 INFO L226 Difference]: Without dead ends: 108 [2024-11-22 10:53:46,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 10:53:46,693 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 137 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 10:53:46,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 196 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 10:53:46,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-22 10:53:46,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 78. [2024-11-22 10:53:46,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 54 states have internal predecessors, (67), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-22 10:53:46,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 111 transitions. [2024-11-22 10:53:46,719 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 111 transitions. Word has length 82 [2024-11-22 10:53:46,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 10:53:46,719 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 111 transitions. [2024-11-22 10:53:46,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2024-11-22 10:53:46,720 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 111 transitions. [2024-11-22 10:53:46,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-22 10:53:46,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 10:53:46,722 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, 1, 1] [2024-11-22 10:53:46,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 10:53:46,722 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 10:53:46,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 10:53:46,723 INFO L85 PathProgramCache]: Analyzing trace with hash -385616337, now seen corresponding path program 1 times [2024-11-22 10:53:46,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 10:53:46,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550801783] [2024-11-22 10:53:46,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 10:53:46,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 10:53:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 10:53:46,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [410505740] [2024-11-22 10:53:46,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 10:53:46,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 10:53:46,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 10:53:46,774 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) [2024-11-22 10:53:46,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 10:53:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 10:53:46,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 10:53:46,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 10:53:47,073 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-22 10:53:47,073 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 10:53:47,200 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 10:53:47,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 10:53:47,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550801783] [2024-11-22 10:53:47,201 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 10:53:47,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410505740] [2024-11-22 10:53:47,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410505740] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 10:53:47,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 10:53:47,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-22 10:53:47,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649046375] [2024-11-22 10:53:47,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 10:53:47,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 10:53:47,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 10:53:47,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 10:53:47,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 10:53:47,204 INFO L87 Difference]: Start difference. First operand 78 states and 111 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-11-22 10:53:47,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 10:53:47,440 INFO L93 Difference]: Finished difference Result 147 states and 203 transitions. [2024-11-22 10:53:47,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 10:53:47,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 83 [2024-11-22 10:53:47,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 10:53:47,443 INFO L225 Difference]: With dead ends: 147 [2024-11-22 10:53:47,443 INFO L226 Difference]: Without dead ends: 88 [2024-11-22 10:53:47,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-22 10:53:47,444 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 23 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 10:53:47,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 146 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 10:53:47,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-22 10:53:47,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 78. [2024-11-22 10:53:47,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 54 states have internal predecessors, (66), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-22 10:53:47,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 110 transitions. [2024-11-22 10:53:47,455 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 110 transitions. Word has length 83 [2024-11-22 10:53:47,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 10:53:47,456 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 110 transitions. [2024-11-22 10:53:47,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-11-22 10:53:47,456 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 110 transitions. [2024-11-22 10:53:47,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-22 10:53:47,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 10:53:47,457 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, 1, 1] [2024-11-22 10:53:47,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 10:53:47,661 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 [2024-11-22 10:53:47,662 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 10:53:47,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 10:53:47,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1389391025, now seen corresponding path program 1 times [2024-11-22 10:53:47,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 10:53:47,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101307679] [2024-11-22 10:53:47,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 10:53:47,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 10:53:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 10:53:47,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [35105033] [2024-11-22 10:53:47,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 10:53:47,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 10:53:47,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 10:53:47,684 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 10:53:47,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 10:53:47,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 10:53:47,737 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 10:53:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 10:53:47,789 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 10:53:47,789 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 10:53:47,790 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-22 10:53:47,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 10:53:47,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 10:53:47,995 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 10:53:48,054 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 10:53:48,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 10:53:48 BoogieIcfgContainer [2024-11-22 10:53:48,058 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 10:53:48,059 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 10:53:48,059 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 10:53:48,059 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 10:53:48,060 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:53:44" (3/4) ... [2024-11-22 10:53:48,062 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-22 10:53:48,063 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 10:53:48,064 INFO L158 Benchmark]: Toolchain (without parser) took 4026.92ms. Allocated memory was 180.4MB in the beginning and 222.3MB in the end (delta: 41.9MB). Free memory was 112.2MB in the beginning and 190.7MB in the end (delta: -78.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 10:53:48,064 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 10:53:48,065 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.59ms. Allocated memory is still 180.4MB. Free memory was 111.9MB in the beginning and 97.9MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-22 10:53:48,066 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.67ms. Allocated memory is still 180.4MB. Free memory was 97.9MB in the beginning and 149.0MB in the end (delta: -51.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-22 10:53:48,066 INFO L158 Benchmark]: Boogie Preprocessor took 56.88ms. Allocated memory is still 180.4MB. Free memory was 149.0MB in the beginning and 144.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 10:53:48,066 INFO L158 Benchmark]: RCFGBuilder took 441.05ms. Allocated memory is still 180.4MB. Free memory was 144.8MB in the beginning and 125.9MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-22 10:53:48,066 INFO L158 Benchmark]: TraceAbstraction took 3111.06ms. Allocated memory was 180.4MB in the beginning and 222.3MB in the end (delta: 41.9MB). Free memory was 125.2MB in the beginning and 190.7MB in the end (delta: -65.5MB). Peak memory consumption was 79.1MB. Max. memory is 16.1GB. [2024-11-22 10:53:48,066 INFO L158 Benchmark]: Witness Printer took 4.57ms. Allocated memory is still 222.3MB. Free memory is still 190.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 10:53:48,070 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 315.59ms. Allocated memory is still 180.4MB. Free memory was 111.9MB in the beginning and 97.9MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.67ms. Allocated memory is still 180.4MB. Free memory was 97.9MB in the beginning and 149.0MB in the end (delta: -51.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.88ms. Allocated memory is still 180.4MB. Free memory was 149.0MB in the beginning and 144.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 441.05ms. Allocated memory is still 180.4MB. Free memory was 144.8MB in the beginning and 125.9MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3111.06ms. Allocated memory was 180.4MB in the beginning and 222.3MB in the end (delta: 41.9MB). Free memory was 125.2MB in the beginning and 190.7MB in the end (delta: -65.5MB). Peak memory consumption was 79.1MB. Max. memory is 16.1GB. * Witness Printer took 4.57ms. Allocated memory is still 222.3MB. Free memory is still 190.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 82, overapproximation of someBinaryFLOATComparisonOperation at line 82. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 0.9; [L23] unsigned long int var_1_3 = 2941876006; [L24] double var_1_5 = 127.422; [L25] unsigned short int var_1_6 = 10; [L26] unsigned char var_1_7 = 1; [L27] unsigned long int var_1_9 = 4; [L28] unsigned short int var_1_11 = 44699; [L29] signed short int var_1_13 = 2; [L30] unsigned char var_1_15 = 0; [L31] unsigned char var_1_16 = 16; [L32] float var_1_17 = 8.125; VAL [isInitial=0, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2941876006, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L86] isInitial = 1 [L87] FCALL initially() [L88] COND TRUE 1 [L89] FCALL updateLastVariables() [L90] CALL updateVariables() [L60] var_1_3 = __VERIFIER_nondet_ulong() [L61] CALL assume_abort_if_not(var_1_3 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L61] RET assume_abort_if_not(var_1_3 >= 2147483647) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L62] CALL assume_abort_if_not(var_1_3 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L62] RET assume_abort_if_not(var_1_3 <= 4294967295) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L63] var_1_5 = __VERIFIER_nondet_double() [L64] CALL assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=1, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=1, var_1_9=4] [L64] RET assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=1, var_1_9=4] [L65] var_1_7 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_9=4] [L66] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_9=4] [L67] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=4] [L67] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=4] [L68] var_1_9 = __VERIFIER_nondet_ulong() [L69] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0] [L69] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0] [L70] CALL assume_abort_if_not(var_1_9 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0] [L70] RET assume_abort_if_not(var_1_9 <= 4294967295) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0] [L71] CALL assume_abort_if_not(var_1_9 != 0) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L71] RET assume_abort_if_not(var_1_9 != 0) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L72] var_1_11 = __VERIFIER_nondet_ushort() [L73] CALL assume_abort_if_not(var_1_11 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L73] RET assume_abort_if_not(var_1_11 >= 32767) VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L74] CALL assume_abort_if_not(var_1_11 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L74] RET assume_abort_if_not(var_1_11 <= 65534) VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L75] var_1_16 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L76] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L77] CALL assume_abort_if_not(var_1_16 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L77] RET assume_abort_if_not(var_1_16 <= 254) VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L90] RET updateVariables() [L91] CALL step() [L36] var_1_15 = var_1_16 [L37] var_1_17 = var_1_5 VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=9/10, var_1_3=2147483647, var_1_5=2, var_1_6=10, var_1_7=0, var_1_9=1] [L38] EXPR var_1_15 & var_1_15 VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=9/10, var_1_3=2147483647, var_1_5=2, var_1_6=10, var_1_7=0, var_1_9=1] [L38] unsigned long int stepLocal_2 = var_1_3 * (var_1_15 & var_1_15); [L39] COND FALSE !(\read(var_1_7)) [L46] var_1_6 = (((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))) + 1) VAL [isInitial=1, stepLocal_2=0, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=9/10, var_1_3=2147483647, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1] [L48] var_1_13 = var_1_15 [L49] signed long int stepLocal_1 = var_1_6 * var_1_15; [L50] unsigned char stepLocal_0 = var_1_15; VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, stepLocal_2=0, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=9/10, var_1_3=2147483647, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1] [L51] COND TRUE stepLocal_0 <= (var_1_3 - var_1_6) VAL [isInitial=1, stepLocal_1=0, stepLocal_2=0, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=9/10, var_1_3=2147483647, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1] [L52] COND FALSE !(var_1_3 < stepLocal_1) [L55] var_1_1 = var_1_5 VAL [isInitial=1, stepLocal_2=0, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=2, var_1_3=2147483647, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1] [L91] RET step() [L92] CALL, EXPR property() [L82] EXPR ((var_1_15 <= (var_1_3 - var_1_6)) ? ((var_1_3 < (var_1_6 * var_1_15)) ? (var_1_1 == ((double) var_1_5)) : (var_1_1 == ((double) var_1_5))) : 1) && (var_1_7 ? (((var_1_3 * (var_1_15 & var_1_15)) <= (var_1_15 / var_1_9)) ? (var_1_6 == ((unsigned short int) (47342 - var_1_15))) : (var_1_6 == ((unsigned short int) (var_1_11 - ((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15))))))) : (var_1_6 == ((unsigned short int) (((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))) + 1)))) VAL [isInitial=1, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=2, var_1_3=2147483647, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1] [L82-L83] return (((((var_1_15 <= (var_1_3 - var_1_6)) ? ((var_1_3 < (var_1_6 * var_1_15)) ? (var_1_1 == ((double) var_1_5)) : (var_1_1 == ((double) var_1_5))) : 1) && (var_1_7 ? (((var_1_3 * (var_1_15 & var_1_15)) <= (var_1_15 / var_1_9)) ? (var_1_6 == ((unsigned short int) (47342 - var_1_15))) : (var_1_6 == ((unsigned short int) (var_1_11 - ((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15))))))) : (var_1_6 == ((unsigned short int) (((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))) + 1))))) && (var_1_13 == ((signed short int) var_1_15))) && (var_1_15 == ((unsigned char) var_1_16))) && (var_1_17 == ((float) var_1_5)) ; [L92] RET, EXPR property() [L92] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=2, var_1_3=2147483647, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1] [L19] reach_error() VAL [isInitial=1, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=2, var_1_3=2147483647, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 4, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 160 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 160 mSDsluCounter, 409 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 205 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 143 IncrementalHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 204 mSDtfsCounter, 143 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 256 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=2, InterpolantAutomatonStates: 11, 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, 3 MinimizatonAttempts, 40 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 578 NumberOfCodeBlocks, 578 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 407 ConstructedInterpolants, 3 QuantifiedInterpolants, 881 SizeOfPredicates, 4 NumberOfNonLiveVariables, 401 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 1265/1320 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 [2024-11-22 10:53:48,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.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 5cfd8244917467985e1ec9aab123eb53d7984fa345597a11e6475c4a60dfdb5a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 10:53:49,888 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 10:53:49,950 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-22 10:53:49,955 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 10:53:49,955 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 10:53:49,982 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 10:53:49,983 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 10:53:49,983 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 10:53:49,984 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 10:53:49,985 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 10:53:49,986 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 10:53:49,986 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 10:53:49,987 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 10:53:49,987 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 10:53:49,987 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 10:53:49,987 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 10:53:49,990 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 10:53:49,990 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 10:53:49,991 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 10:53:49,991 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 10:53:49,991 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 10:53:49,991 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 10:53:49,992 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 10:53:49,992 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 10:53:49,992 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-22 10:53:49,992 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 10:53:49,992 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-22 10:53:49,992 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 10:53:49,993 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 10:53:49,993 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 10:53:49,993 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 10:53:49,993 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 10:53:49,993 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 10:53:49,994 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 10:53:49,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 10:53:49,994 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 10:53:49,994 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 10:53:49,994 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 10:53:49,995 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-22 10:53:49,995 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-22 10:53:49,995 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 10:53:49,997 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 10:53:49,997 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 10:53:49,997 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 10:53:49,997 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5cfd8244917467985e1ec9aab123eb53d7984fa345597a11e6475c4a60dfdb5a [2024-11-22 10:53:50,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 10:53:50,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 10:53:50,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 10:53:50,283 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 10:53:50,283 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 10:53:50,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i [2024-11-22 10:53:51,565 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 10:53:51,725 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 10:53:51,725 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i [2024-11-22 10:53:51,735 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7681e6110/239c1139e65f430a95560f7aa7bd8949/FLAG5eed44ff5 [2024-11-22 10:53:51,746 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7681e6110/239c1139e65f430a95560f7aa7bd8949 [2024-11-22 10:53:51,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 10:53:51,755 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 10:53:51,756 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 10:53:51,756 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 10:53:51,760 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 10:53:51,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:53:51" (1/1) ... [2024-11-22 10:53:51,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@126df8ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:51, skipping insertion in model container [2024-11-22 10:53:51,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:53:51" (1/1) ... [2024-11-22 10:53:51,777 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 10:53:51,925 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-64.i[915,928] [2024-11-22 10:53:51,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 10:53:51,979 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 10:53:51,988 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-64.i[915,928] [2024-11-22 10:53:52,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 10:53:52,025 INFO L204 MainTranslator]: Completed translation [2024-11-22 10:53:52,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:52 WrapperNode [2024-11-22 10:53:52,026 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 10:53:52,027 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 10:53:52,027 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 10:53:52,027 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 10:53:52,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:52" (1/1) ... [2024-11-22 10:53:52,043 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:52" (1/1) ... [2024-11-22 10:53:52,064 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90 [2024-11-22 10:53:52,066 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 10:53:52,066 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 10:53:52,067 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 10:53:52,067 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 10:53:52,075 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:52" (1/1) ... [2024-11-22 10:53:52,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:52" (1/1) ... [2024-11-22 10:53:52,082 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:52" (1/1) ... [2024-11-22 10:53:52,096 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]. [2024-11-22 10:53:52,096 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:52" (1/1) ... [2024-11-22 10:53:52,097 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:52" (1/1) ... [2024-11-22 10:53:52,104 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:52" (1/1) ... [2024-11-22 10:53:52,110 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:52" (1/1) ... [2024-11-22 10:53:52,112 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:52" (1/1) ... [2024-11-22 10:53:52,113 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:52" (1/1) ... [2024-11-22 10:53:52,115 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 10:53:52,116 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 10:53:52,116 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 10:53:52,116 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 10:53:52,117 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:52" (1/1) ... [2024-11-22 10:53:52,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 10:53:52,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 10:53:52,153 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) [2024-11-22 10:53:52,157 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 [2024-11-22 10:53:52,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 10:53:52,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-22 10:53:52,200 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 10:53:52,200 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 10:53:52,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 10:53:52,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 10:53:52,262 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 10:53:52,264 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 10:53:52,623 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-22 10:53:52,623 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 10:53:52,636 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 10:53:52,636 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 10:53:52,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:53:52 BoogieIcfgContainer [2024-11-22 10:53:52,637 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 10:53:52,639 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 10:53:52,639 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 10:53:52,642 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 10:53:52,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:53:51" (1/3) ... [2024-11-22 10:53:52,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d03bbde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:53:52, skipping insertion in model container [2024-11-22 10:53:52,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:53:52" (2/3) ... [2024-11-22 10:53:52,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d03bbde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:53:52, skipping insertion in model container [2024-11-22 10:53:52,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:53:52" (3/3) ... [2024-11-22 10:53:52,646 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-64.i [2024-11-22 10:53:52,659 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 10:53:52,659 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 10:53:52,721 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 10:53:52,727 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;@51793aa2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 10:53:52,727 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 10:53:52,733 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 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) [2024-11-22 10:53:52,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-22 10:53:52,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 10:53:52,742 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] [2024-11-22 10:53:52,742 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 10:53:52,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 10:53:52,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1855080281, now seen corresponding path program 1 times [2024-11-22 10:53:52,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 10:53:52,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1027710206] [2024-11-22 10:53:52,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 10:53:52,761 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 [2024-11-22 10:53:52,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 10:53:52,764 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) [2024-11-22 10:53:52,765 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 [2024-11-22 10:53:52,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 10:53:52,950 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 10:53:52,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 10:53:52,988 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-11-22 10:53:52,989 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 10:53:52,989 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 10:53:52,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1027710206] [2024-11-22 10:53:52,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1027710206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 10:53:52,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 10:53:52,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 10:53:52,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364023461] [2024-11-22 10:53:52,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 10:53:52,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 10:53:52,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 10:53:53,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 10:53:53,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 10:53:53,016 INFO L87 Difference]: Start difference. First operand has 42 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 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 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 10:53:53,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 10:53:53,033 INFO L93 Difference]: Finished difference Result 77 states and 126 transitions. [2024-11-22 10:53:53,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 10:53:53,035 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 78 [2024-11-22 10:53:53,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 10:53:53,040 INFO L225 Difference]: With dead ends: 77 [2024-11-22 10:53:53,040 INFO L226 Difference]: Without dead ends: 38 [2024-11-22 10:53:53,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 10:53:53,046 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 10:53:53,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 10:53:53,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-22 10:53:53,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-22 10:53:53,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 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) [2024-11-22 10:53:53,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 53 transitions. [2024-11-22 10:53:53,080 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 53 transitions. Word has length 78 [2024-11-22 10:53:53,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 10:53:53,081 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 53 transitions. [2024-11-22 10:53:53,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 10:53:53,081 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2024-11-22 10:53:53,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-22 10:53:53,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 10:53:53,085 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] [2024-11-22 10:53:53,093 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-22 10:53:53,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 10:53:53,286 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 10:53:53,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 10:53:53,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1041026265, now seen corresponding path program 1 times [2024-11-22 10:53:53,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 10:53:53,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044843535] [2024-11-22 10:53:53,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 10:53:53,288 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 [2024-11-22 10:53:53,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 10:53:53,289 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 10:53:53,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-22 10:53:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 10:53:53,433 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 10:53:53,436 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 10:53:53,668 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-22 10:53:53,669 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 10:53:53,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 10:53:53,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044843535] [2024-11-22 10:53:53,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1044843535] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 10:53:53,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1121716161] [2024-11-22 10:53:53,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 10:53:53,752 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-22 10:53:53,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-22 10:53:53,756 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-22 10:53:53,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-22 10:53:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 10:53:54,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 10:53:54,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 10:53:54,330 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-22 10:53:54,331 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 10:53:54,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1121716161] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 10:53:54,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 10:53:54,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2024-11-22 10:53:54,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086078992] [2024-11-22 10:53:54,367 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 10:53:54,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 10:53:54,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 10:53:54,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 10:53:54,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-22 10:53:54,369 INFO L87 Difference]: Start difference. First operand 38 states and 53 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 10:53:55,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 10:53:55,036 INFO L93 Difference]: Finished difference Result 90 states and 121 transitions. [2024-11-22 10:53:55,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 10:53:55,044 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 78 [2024-11-22 10:53:55,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 10:53:55,045 INFO L225 Difference]: With dead ends: 90 [2024-11-22 10:53:55,045 INFO L226 Difference]: Without dead ends: 55 [2024-11-22 10:53:55,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-22 10:53:55,046 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 39 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 10:53:55,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 89 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 10:53:55,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-22 10:53:55,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 42. [2024-11-22 10:53:55,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-22 10:53:55,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 55 transitions. [2024-11-22 10:53:55,057 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 55 transitions. Word has length 78 [2024-11-22 10:53:55,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 10:53:55,058 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 55 transitions. [2024-11-22 10:53:55,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 10:53:55,058 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 55 transitions. [2024-11-22 10:53:55,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 10:53:55,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 10:53:55,060 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] [2024-11-22 10:53:55,066 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-22 10:53:55,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-22 10:53:55,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 10:53:55,461 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 10:53:55,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 10:53:55,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1971482828, now seen corresponding path program 1 times [2024-11-22 10:53:55,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 10:53:55,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2117230763] [2024-11-22 10:53:55,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 10:53:55,463 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 [2024-11-22 10:53:55,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 10:53:55,464 INFO L229 MonitoredProcess]: Starting monitored process 5 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) [2024-11-22 10:53:55,465 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 (5)] Waiting until timeout for monitored process [2024-11-22 10:53:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 10:53:55,576 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 10:53:55,581 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 10:53:55,800 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-22 10:53:55,800 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 10:53:55,942 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 10:53:55,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2117230763] [2024-11-22 10:53:55,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2117230763] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 10:53:55,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [70236756] [2024-11-22 10:53:55,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 10:53:55,943 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-22 10:53:55,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-22 10:53:55,945 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-22 10:53:55,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-22 10:53:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 10:53:56,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 10:53:56,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 10:53:56,381 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-22 10:53:56,383 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 10:53:56,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [70236756] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 10:53:56,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 10:53:56,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2024-11-22 10:53:56,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454052377] [2024-11-22 10:53:56,438 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 10:53:56,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 10:53:56,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 10:53:56,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 10:53:56,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-22 10:53:56,440 INFO L87 Difference]: Start difference. First operand 42 states and 55 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 10:53:57,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 10:53:57,539 INFO L93 Difference]: Finished difference Result 83 states and 109 transitions. [2024-11-22 10:53:57,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 10:53:57,547 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 79 [2024-11-22 10:53:57,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 10:53:57,548 INFO L225 Difference]: With dead ends: 83 [2024-11-22 10:53:57,548 INFO L226 Difference]: Without dead ends: 44 [2024-11-22 10:53:57,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-22 10:53:57,549 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 14 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 10:53:57,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 99 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 10:53:57,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-22 10:53:57,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2024-11-22 10:53:57,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-22 10:53:57,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 54 transitions. [2024-11-22 10:53:57,555 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 54 transitions. Word has length 79 [2024-11-22 10:53:57,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 10:53:57,556 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 54 transitions. [2024-11-22 10:53:57,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 10:53:57,556 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 54 transitions. [2024-11-22 10:53:57,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 10:53:57,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 10:53:57,557 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] [2024-11-22 10:53:57,564 INFO L540 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 (5)] Forceful destruction successful, exit code 0 [2024-11-22 10:53:57,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2024-11-22 10:53:57,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-22 10:53:57,958 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 10:53:57,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 10:53:57,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1973329870, now seen corresponding path program 1 times [2024-11-22 10:53:57,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 10:53:57,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102677806] [2024-11-22 10:53:57,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 10:53:57,961 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 [2024-11-22 10:53:57,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 10:53:57,962 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2024-11-22 10:53:57,963 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 (7)] Waiting until timeout for monitored process [2024-11-22 10:53:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 10:53:58,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 10:53:58,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 10:54:16,158 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 87 proven. 27 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-22 10:54:16,159 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 10:55:22,785 WARN L286 SmtUtils]: Spent 14.48s on a formula simplification that was a NOOP. DAG size: 120 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)