./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-9.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-9.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 2af4ef02d2ea167c3c28149dc3ff530f0194e8e0dcdfa97ac5fed6a48df73da2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 23:59:13,751 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 23:59:13,801 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 23:59:13,807 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 23:59:13,808 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 23:59:13,831 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 23:59:13,833 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 23:59:13,833 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 23:59:13,834 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 23:59:13,835 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 23:59:13,835 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 23:59:13,835 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 23:59:13,836 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 23:59:13,836 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 23:59:13,838 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 23:59:13,838 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 23:59:13,838 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 23:59:13,839 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 23:59:13,839 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 23:59:13,839 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 23:59:13,839 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 23:59:13,842 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 23:59:13,842 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 23:59:13,843 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 23:59:13,843 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 23:59:13,843 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 23:59:13,843 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 23:59:13,843 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 23:59:13,844 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 23:59:13,844 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 23:59:13,844 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 23:59:13,844 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 23:59:13,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 23:59:13,844 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 23:59:13,845 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 23:59:13,845 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 23:59:13,845 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 23:59:13,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 23:59:13,845 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 23:59:13,846 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 23:59:13,846 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 23:59:13,846 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 23:59:13,847 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2af4ef02d2ea167c3c28149dc3ff530f0194e8e0dcdfa97ac5fed6a48df73da2 [2024-11-18 23:59:14,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 23:59:14,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 23:59:14,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 23:59:14,080 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 23:59:14,080 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 23:59:14,081 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-9.i [2024-11-18 23:59:15,273 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 23:59:15,428 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 23:59:15,429 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-9.i [2024-11-18 23:59:15,435 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e34a0259b/72497a935d6141139262a24c12d811a4/FLAG81daa3ef1 [2024-11-18 23:59:15,854 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e34a0259b/72497a935d6141139262a24c12d811a4 [2024-11-18 23:59:15,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 23:59:15,857 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 23:59:15,859 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 23:59:15,859 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 23:59:15,864 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 23:59:15,865 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:59:15" (1/1) ... [2024-11-18 23:59:15,865 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a0ed0d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:15, skipping insertion in model container [2024-11-18 23:59:15,865 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:59:15" (1/1) ... [2024-11-18 23:59:15,883 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 23:59:16,095 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_operatoramount_amount25_file-9.i[914,927] [2024-11-18 23:59:16,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 23:59:16,137 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 23:59:16,146 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_operatoramount_amount25_file-9.i[914,927] [2024-11-18 23:59:16,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 23:59:16,169 INFO L204 MainTranslator]: Completed translation [2024-11-18 23:59:16,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:16 WrapperNode [2024-11-18 23:59:16,170 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 23:59:16,170 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 23:59:16,171 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 23:59:16,171 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 23:59:16,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:16" (1/1) ... [2024-11-18 23:59:16,181 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:16" (1/1) ... [2024-11-18 23:59:16,205 INFO L138 Inliner]: procedures = 26, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2024-11-18 23:59:16,206 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 23:59:16,206 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 23:59:16,206 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 23:59:16,206 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 23:59:16,215 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:16" (1/1) ... [2024-11-18 23:59:16,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:16" (1/1) ... [2024-11-18 23:59:16,217 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:16" (1/1) ... [2024-11-18 23:59:16,226 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]. [2024-11-18 23:59:16,230 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:16" (1/1) ... [2024-11-18 23:59:16,230 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:16" (1/1) ... [2024-11-18 23:59:16,234 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:16" (1/1) ... [2024-11-18 23:59:16,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:16" (1/1) ... [2024-11-18 23:59:16,237 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:16" (1/1) ... [2024-11-18 23:59:16,238 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:16" (1/1) ... [2024-11-18 23:59:16,239 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 23:59:16,240 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 23:59:16,240 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 23:59:16,240 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 23:59:16,241 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:16" (1/1) ... [2024-11-18 23:59:16,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 23:59:16,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 23:59:16,270 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) [2024-11-18 23:59:16,272 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 [2024-11-18 23:59:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 23:59:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 23:59:16,302 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 23:59:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 23:59:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 23:59:16,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 23:59:16,353 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 23:59:16,355 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 23:59:16,521 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-18 23:59:16,521 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 23:59:16,530 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 23:59:16,530 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 23:59:16,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:59:16 BoogieIcfgContainer [2024-11-18 23:59:16,530 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 23:59:16,532 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 23:59:16,532 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 23:59:16,534 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 23:59:16,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:59:15" (1/3) ... [2024-11-18 23:59:16,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a022ef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:59:16, skipping insertion in model container [2024-11-18 23:59:16,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:16" (2/3) ... [2024-11-18 23:59:16,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a022ef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:59:16, skipping insertion in model container [2024-11-18 23:59:16,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:59:16" (3/3) ... [2024-11-18 23:59:16,538 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-9.i [2024-11-18 23:59:16,549 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 23:59:16,549 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 23:59:16,594 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 23:59:16,599 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;@7e9211b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 23:59:16,599 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 23:59:16,602 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 33 states have (on average 1.393939393939394) internal successors, (46), 34 states have internal predecessors, (46), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-18 23:59:16,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-18 23:59:16,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:59:16,608 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:59:16,608 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:59:16,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:59:16,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1239594008, now seen corresponding path program 1 times [2024-11-18 23:59:16,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:59:16,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399558339] [2024-11-18 23:59:16,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:59:16,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:59:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:59:16,802 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-18 23:59:16,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:59:16,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399558339] [2024-11-18 23:59:16,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399558339] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 23:59:16,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897269943] [2024-11-18 23:59:16,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:59:16,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 23:59:16,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 23:59:16,808 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) [2024-11-18 23:59:16,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 23:59:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:59:16,901 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 23:59:16,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 23:59:16,914 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-18 23:59:16,915 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 23:59:16,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897269943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:59:16,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 23:59:16,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 23:59:16,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790642669] [2024-11-18 23:59:16,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:59:16,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 23:59:16,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 23:59:16,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 23:59:16,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 23:59:16,937 INFO L87 Difference]: Start difference. First operand has 41 states, 33 states have (on average 1.393939393939394) internal successors, (46), 34 states have internal predecessors, (46), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) 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, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 23:59:16,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:59:16,950 INFO L93 Difference]: Finished difference Result 75 states and 111 transitions. [2024-11-18 23:59:16,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 23:59:16,952 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, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2024-11-18 23:59:16,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:59:16,956 INFO L225 Difference]: With dead ends: 75 [2024-11-18 23:59:16,957 INFO L226 Difference]: Without dead ends: 37 [2024-11-18 23:59:16,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 23:59:16,961 INFO L432 NwaCegarLoop]: 49 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, 49 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 [2024-11-18 23:59:16,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 23:59:16,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-18 23:59:16,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-18 23:59:16,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 30 states have (on average 1.3) internal successors, (39), 30 states have internal predecessors, (39), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-18 23:59:16,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 49 transitions. [2024-11-18 23:59:16,987 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 49 transitions. Word has length 45 [2024-11-18 23:59:16,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:59:16,987 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 49 transitions. [2024-11-18 23:59:16,987 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, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 23:59:16,988 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2024-11-18 23:59:16,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-18 23:59:16,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:59:16,989 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:59:17,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 23:59:17,190 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 [2024-11-18 23:59:17,191 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:59:17,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:59:17,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1220325466, now seen corresponding path program 1 times [2024-11-18 23:59:17,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:59:17,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942096766] [2024-11-18 23:59:17,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:59:17,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:59:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:59:17,342 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-18 23:59:17,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:59:17,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942096766] [2024-11-18 23:59:17,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942096766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:59:17,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:59:17,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 23:59:17,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038539676] [2024-11-18 23:59:17,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:59:17,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 23:59:17,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 23:59:17,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 23:59:17,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 23:59:17,345 INFO L87 Difference]: Start difference. First operand 37 states and 49 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-18 23:59:17,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:59:17,405 INFO L93 Difference]: Finished difference Result 119 states and 158 transitions. [2024-11-18 23:59:17,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 23:59:17,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 45 [2024-11-18 23:59:17,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:59:17,407 INFO L225 Difference]: With dead ends: 119 [2024-11-18 23:59:17,407 INFO L226 Difference]: Without dead ends: 85 [2024-11-18 23:59:17,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 23:59:17,408 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 66 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 23:59:17,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 142 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 23:59:17,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-18 23:59:17,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 69. [2024-11-18 23:59:17,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 56 states have (on average 1.3035714285714286) internal successors, (73), 56 states have internal predecessors, (73), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-18 23:59:17,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 93 transitions. [2024-11-18 23:59:17,428 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 93 transitions. Word has length 45 [2024-11-18 23:59:17,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:59:17,429 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 93 transitions. [2024-11-18 23:59:17,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-18 23:59:17,429 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 93 transitions. [2024-11-18 23:59:17,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-18 23:59:17,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:59:17,431 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:59:17,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 23:59:17,431 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:59:17,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:59:17,432 INFO L85 PathProgramCache]: Analyzing trace with hash 528409758, now seen corresponding path program 1 times [2024-11-18 23:59:17,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:59:17,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005821127] [2024-11-18 23:59:17,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:59:17,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:59:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:59:17,530 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-18 23:59:17,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:59:17,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005821127] [2024-11-18 23:59:17,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005821127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:59:17,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:59:17,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 23:59:17,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565268659] [2024-11-18 23:59:17,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:59:17,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 23:59:17,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 23:59:17,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 23:59:17,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 23:59:17,534 INFO L87 Difference]: Start difference. First operand 69 states and 93 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-18 23:59:17,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:59:17,579 INFO L93 Difference]: Finished difference Result 153 states and 207 transitions. [2024-11-18 23:59:17,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 23:59:17,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 46 [2024-11-18 23:59:17,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:59:17,581 INFO L225 Difference]: With dead ends: 153 [2024-11-18 23:59:17,581 INFO L226 Difference]: Without dead ends: 87 [2024-11-18 23:59:17,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 23:59:17,582 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 43 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 23:59:17,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 89 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 23:59:17,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-18 23:59:17,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 69. [2024-11-18 23:59:17,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 56 states have internal predecessors, (69), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-18 23:59:17,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 89 transitions. [2024-11-18 23:59:17,614 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 89 transitions. Word has length 46 [2024-11-18 23:59:17,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:59:17,614 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 89 transitions. [2024-11-18 23:59:17,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-18 23:59:17,615 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 89 transitions. [2024-11-18 23:59:17,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-18 23:59:17,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:59:17,618 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:59:17,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 23:59:17,618 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:59:17,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:59:17,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1234764412, now seen corresponding path program 1 times [2024-11-18 23:59:17,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:59:17,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886747195] [2024-11-18 23:59:17,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:59:17,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:59:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:59:18,042 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-18 23:59:18,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:59:18,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886747195] [2024-11-18 23:59:18,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886747195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:59:18,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:59:18,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 23:59:18,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023965122] [2024-11-18 23:59:18,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:59:18,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 23:59:18,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 23:59:18,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 23:59:18,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 23:59:18,044 INFO L87 Difference]: Start difference. First operand 69 states and 89 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-18 23:59:18,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:59:18,111 INFO L93 Difference]: Finished difference Result 137 states and 177 transitions. [2024-11-18 23:59:18,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 23:59:18,111 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), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 47 [2024-11-18 23:59:18,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:59:18,112 INFO L225 Difference]: With dead ends: 137 [2024-11-18 23:59:18,112 INFO L226 Difference]: Without dead ends: 71 [2024-11-18 23:59:18,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 23:59:18,114 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 14 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 23:59:18,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 174 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 23:59:18,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-18 23:59:18,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2024-11-18 23:59:18,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 56 states have (on average 1.1964285714285714) internal successors, (67), 56 states have internal predecessors, (67), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-18 23:59:18,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 87 transitions. [2024-11-18 23:59:18,121 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 87 transitions. Word has length 47 [2024-11-18 23:59:18,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:59:18,121 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 87 transitions. [2024-11-18 23:59:18,121 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), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-18 23:59:18,121 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 87 transitions. [2024-11-18 23:59:18,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-18 23:59:18,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:59:18,122 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:59:18,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 23:59:18,122 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:59:18,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:59:18,123 INFO L85 PathProgramCache]: Analyzing trace with hash -874974185, now seen corresponding path program 1 times [2024-11-18 23:59:18,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:59:18,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341448702] [2024-11-18 23:59:18,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:59:18,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:59:18,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-18 23:59:18,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [461405806] [2024-11-18 23:59:18,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:59:18,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 23:59:18,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 23:59:18,147 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) [2024-11-18 23:59:18,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 23:59:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 23:59:18,210 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 23:59:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 23:59:18,248 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-18 23:59:18,249 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 23:59:18,250 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 23:59:18,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 23:59:18,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 23:59:18,454 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-18 23:59:18,498 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 23:59:18,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:59:18 BoogieIcfgContainer [2024-11-18 23:59:18,500 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 23:59:18,501 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 23:59:18,501 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 23:59:18,501 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 23:59:18,501 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:59:16" (3/4) ... [2024-11-18 23:59:18,503 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-18 23:59:18,505 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 23:59:18,506 INFO L158 Benchmark]: Toolchain (without parser) took 2648.22ms. Allocated memory was 184.5MB in the beginning and 243.3MB in the end (delta: 58.7MB). Free memory was 111.8MB in the beginning and 104.9MB in the end (delta: 6.9MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB. [2024-11-18 23:59:18,506 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 184.5MB. Free memory is still 141.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 23:59:18,506 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.62ms. Allocated memory is still 184.5MB. Free memory was 111.6MB in the beginning and 147.3MB in the end (delta: -35.7MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2024-11-18 23:59:18,507 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.29ms. Allocated memory is still 184.5MB. Free memory was 147.3MB in the beginning and 144.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 23:59:18,509 INFO L158 Benchmark]: Boogie Preprocessor took 33.11ms. Allocated memory is still 184.5MB. Free memory was 144.3MB in the beginning and 142.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 23:59:18,509 INFO L158 Benchmark]: RCFGBuilder took 290.26ms. Allocated memory is still 184.5MB. Free memory was 141.1MB in the beginning and 125.5MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-18 23:59:18,509 INFO L158 Benchmark]: TraceAbstraction took 1968.72ms. Allocated memory was 184.5MB in the beginning and 243.3MB in the end (delta: 58.7MB). Free memory was 125.5MB in the beginning and 105.9MB in the end (delta: 19.5MB). Peak memory consumption was 80.1MB. Max. memory is 16.1GB. [2024-11-18 23:59:18,509 INFO L158 Benchmark]: Witness Printer took 4.07ms. Allocated memory is still 243.3MB. Free memory was 105.9MB in the beginning and 104.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 23:59:18,510 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 184.5MB. Free memory is still 141.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.62ms. Allocated memory is still 184.5MB. Free memory was 111.6MB in the beginning and 147.3MB in the end (delta: -35.7MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.29ms. Allocated memory is still 184.5MB. Free memory was 147.3MB in the beginning and 144.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.11ms. Allocated memory is still 184.5MB. Free memory was 144.3MB in the beginning and 142.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 290.26ms. Allocated memory is still 184.5MB. Free memory was 141.1MB in the beginning and 125.5MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1968.72ms. Allocated memory was 184.5MB in the beginning and 243.3MB in the end (delta: 58.7MB). Free memory was 125.5MB in the beginning and 105.9MB in the end (delta: 19.5MB). Peak memory consumption was 80.1MB. Max. memory is 16.1GB. * Witness Printer took 4.07ms. Allocated memory is still 243.3MB. Free memory was 105.9MB in the beginning and 104.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 75, overapproximation of shiftLeft at line 75. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 10; [L23] unsigned char var_1_3 = 4; [L24] unsigned char var_1_7 = 0; [L25] signed short int var_1_8 = 100; [L26] unsigned char var_1_9 = 32; [L27] double var_1_10 = 9.2; [L28] double var_1_11 = 0.975; [L29] signed short int var_1_12 = 1; [L30] signed short int last_1_var_1_8 = 100; [L31] double last_1_var_1_10 = 9.2; VAL [isInitial=0, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=4, var_1_7=0, var_1_8=100, var_1_9=32] [L79] isInitial = 1 [L80] FCALL initially() [L81] COND TRUE 1 [L82] CALL updateLastVariables() [L71] last_1_var_1_8 = var_1_8 [L72] last_1_var_1_10 = var_1_10 VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=4, var_1_7=0, var_1_8=100, var_1_9=32] [L82] RET updateLastVariables() [L83] CALL updateVariables() [L61] var_1_3 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_7=0, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_7=0, var_1_8=100, var_1_9=32] [L62] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_7=0, var_1_8=100, var_1_9=32] [L63] CALL assume_abort_if_not(var_1_3 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=260, var_1_7=0, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=260, var_1_7=0, var_1_8=100, var_1_9=32] [L63] RET assume_abort_if_not(var_1_3 <= 254) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=260, var_1_7=0, var_1_8=100, var_1_9=32] [L64] var_1_7 = __VERIFIER_nondet_uchar() [L65] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=260, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=260, var_1_8=100, var_1_9=32] [L65] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=260, var_1_8=100, var_1_9=32] [L66] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=260, var_1_7=0, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=260, var_1_7=0, var_1_8=100, var_1_9=32] [L66] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=260, var_1_7=0, var_1_8=100, var_1_9=32] [L67] var_1_11 = __VERIFIER_nondet_double() [L68] CALL assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_12=1, var_1_1=10, var_1_3=260, var_1_7=0, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_12=1, var_1_1=10, var_1_3=260, var_1_7=0, var_1_8=100, var_1_9=32] [L68] RET assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_12=1, var_1_1=10, var_1_3=260, var_1_7=0, var_1_8=100, var_1_9=32] [L83] RET updateVariables() [L84] CALL step() [L35] COND FALSE !(last_1_var_1_8 <= 16) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_12=1, var_1_1=10, var_1_3=260, var_1_7=0, var_1_8=100, var_1_9=32] [L38] COND FALSE !(((((last_1_var_1_10) > (last_1_var_1_10)) ? (last_1_var_1_10) : (last_1_var_1_10))) < last_1_var_1_10) [L45] var_1_1 = var_1_3 VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_12=1, var_1_1=260, var_1_3=260, var_1_7=0, var_1_8=100, var_1_9=32] [L48] var_1_9 = 64 [L49] var_1_10 = var_1_11 VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=2, var_1_11=2, var_1_12=1, var_1_1=260, var_1_3=260, var_1_7=0, var_1_8=100, var_1_9=64] [L50] EXPR 10 << var_1_9 VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=2, var_1_11=2, var_1_12=1, var_1_1=260, var_1_3=260, var_1_7=0, var_1_8=100, var_1_9=64] [L50] COND TRUE (10 << var_1_9) < (var_1_3 * var_1_1) [L51] var_1_8 = (var_1_9 + var_1_1) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=2, var_1_11=2, var_1_12=1, var_1_1=260, var_1_3=260, var_1_7=0, var_1_8=68, var_1_9=64] [L53] unsigned char stepLocal_0 = var_1_10 > var_1_10; VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, stepLocal_0=1, var_1_10=2, var_1_11=2, var_1_12=1, var_1_1=260, var_1_3=260, var_1_7=0, var_1_8=68, var_1_9=64] [L54] COND TRUE ((var_1_1 + var_1_9) < 10) || stepLocal_0 [L55] var_1_12 = ((((var_1_8) > (var_1_1)) ? (var_1_8) : (var_1_1))) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=2, var_1_11=2, var_1_12=68, var_1_1=260, var_1_3=260, var_1_7=0, var_1_8=68, var_1_9=64] [L84] RET step() [L85] CALL, EXPR property() [L75] EXPR ((last_1_var_1_8 <= 16) ? (var_1_1 == ((unsigned char) var_1_3)) : ((((((last_1_var_1_10) > (last_1_var_1_10)) ? (last_1_var_1_10) : (last_1_var_1_10))) < last_1_var_1_10) ? (var_1_7 ? (var_1_1 == ((unsigned char) var_1_3)) : (var_1_1 == ((unsigned char) var_1_3))) : (var_1_1 == ((unsigned char) var_1_3)))) && (((10 << var_1_9) < (var_1_3 * var_1_1)) ? (var_1_8 == ((signed short int) (var_1_9 + var_1_1))) : 1) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=2, var_1_11=2, var_1_12=68, var_1_1=260, var_1_3=260, var_1_7=0, var_1_8=68, var_1_9=64] [L75] EXPR 10 << var_1_9 VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=2, var_1_11=2, var_1_12=68, var_1_1=260, var_1_3=260, var_1_7=0, var_1_8=68, var_1_9=64] [L75] EXPR ((last_1_var_1_8 <= 16) ? (var_1_1 == ((unsigned char) var_1_3)) : ((((((last_1_var_1_10) > (last_1_var_1_10)) ? (last_1_var_1_10) : (last_1_var_1_10))) < last_1_var_1_10) ? (var_1_7 ? (var_1_1 == ((unsigned char) var_1_3)) : (var_1_1 == ((unsigned char) var_1_3))) : (var_1_1 == ((unsigned char) var_1_3)))) && (((10 << var_1_9) < (var_1_3 * var_1_1)) ? (var_1_8 == ((signed short int) (var_1_9 + var_1_1))) : 1) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=2, var_1_11=2, var_1_12=68, var_1_1=260, var_1_3=260, var_1_7=0, var_1_8=68, var_1_9=64] [L75-L76] return (((((last_1_var_1_8 <= 16) ? (var_1_1 == ((unsigned char) var_1_3)) : ((((((last_1_var_1_10) > (last_1_var_1_10)) ? (last_1_var_1_10) : (last_1_var_1_10))) < last_1_var_1_10) ? (var_1_7 ? (var_1_1 == ((unsigned char) var_1_3)) : (var_1_1 == ((unsigned char) var_1_3))) : (var_1_1 == ((unsigned char) var_1_3)))) && (((10 << var_1_9) < (var_1_3 * var_1_1)) ? (var_1_8 == ((signed short int) (var_1_9 + var_1_1))) : 1)) && (var_1_9 == ((unsigned char) 64))) && (var_1_10 == ((double) var_1_11))) && ((((var_1_1 + var_1_9) < 10) || (var_1_10 > var_1_10)) ? (var_1_12 == ((signed short int) ((((var_1_8) > (var_1_1)) ? (var_1_8) : (var_1_1))))) : (var_1_12 == ((signed short int) var_1_8))) ; [L85] RET, EXPR property() [L85] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=2, var_1_11=2, var_1_12=68, var_1_1=260, var_1_3=260, var_1_7=0, var_1_8=68, var_1_9=64] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=2, var_1_11=2, var_1_12=68, var_1_1=260, var_1_3=260, var_1_7=0, var_1_8=68, var_1_9=64] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 123 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 123 mSDsluCounter, 454 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 242 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 212 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=2, InterpolantAutomatonStates: 13, 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, 4 MinimizatonAttempts, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 328 NumberOfCodeBlocks, 328 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 361 SizeOfPredicates, 0 NumberOfNonLiveVariables, 133 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 192/200 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 [2024-11-18 23:59:18,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-9.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 2af4ef02d2ea167c3c28149dc3ff530f0194e8e0dcdfa97ac5fed6a48df73da2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 23:59:20,300 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 23:59:20,364 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-18 23:59:20,369 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 23:59:20,369 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 23:59:20,392 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 23:59:20,393 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 23:59:20,393 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 23:59:20,394 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 23:59:20,394 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 23:59:20,394 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 23:59:20,395 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 23:59:20,395 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 23:59:20,395 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 23:59:20,395 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 23:59:20,396 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 23:59:20,397 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 23:59:20,398 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 23:59:20,399 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 23:59:20,399 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 23:59:20,399 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 23:59:20,400 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 23:59:20,400 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 23:59:20,401 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-18 23:59:20,401 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-18 23:59:20,401 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 23:59:20,401 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-18 23:59:20,402 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 23:59:20,402 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 23:59:20,402 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 23:59:20,402 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 23:59:20,403 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 23:59:20,403 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 23:59:20,403 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 23:59:20,404 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 23:59:20,404 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 23:59:20,404 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 23:59:20,404 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 23:59:20,404 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-18 23:59:20,405 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-18 23:59:20,405 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 23:59:20,405 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 23:59:20,405 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 23:59:20,406 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 23:59:20,406 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2af4ef02d2ea167c3c28149dc3ff530f0194e8e0dcdfa97ac5fed6a48df73da2 [2024-11-18 23:59:20,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 23:59:20,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 23:59:20,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 23:59:20,674 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 23:59:20,674 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 23:59:20,675 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-9.i [2024-11-18 23:59:21,929 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 23:59:22,108 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 23:59:22,108 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-9.i [2024-11-18 23:59:22,115 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f6e23616/a8d2dcc21c1648af879c0fe70c107a49/FLAGf8405b443 [2024-11-18 23:59:22,508 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f6e23616/a8d2dcc21c1648af879c0fe70c107a49 [2024-11-18 23:59:22,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 23:59:22,511 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 23:59:22,512 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 23:59:22,513 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 23:59:22,516 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 23:59:22,517 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:59:22" (1/1) ... [2024-11-18 23:59:22,518 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a76f15a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:22, skipping insertion in model container [2024-11-18 23:59:22,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:59:22" (1/1) ... [2024-11-18 23:59:22,541 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 23:59:22,686 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_operatoramount_amount25_file-9.i[914,927] [2024-11-18 23:59:22,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 23:59:22,743 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 23:59:22,754 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_operatoramount_amount25_file-9.i[914,927] [2024-11-18 23:59:22,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 23:59:22,791 INFO L204 MainTranslator]: Completed translation [2024-11-18 23:59:22,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:22 WrapperNode [2024-11-18 23:59:22,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 23:59:22,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 23:59:22,792 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 23:59:22,792 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 23:59:22,797 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:22" (1/1) ... [2024-11-18 23:59:22,810 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:22" (1/1) ... [2024-11-18 23:59:22,833 INFO L138 Inliner]: procedures = 27, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 75 [2024-11-18 23:59:22,834 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 23:59:22,835 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 23:59:22,835 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 23:59:22,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 23:59:22,844 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:22" (1/1) ... [2024-11-18 23:59:22,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:22" (1/1) ... [2024-11-18 23:59:22,846 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:22" (1/1) ... [2024-11-18 23:59:22,854 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]. [2024-11-18 23:59:22,854 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:22" (1/1) ... [2024-11-18 23:59:22,854 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:22" (1/1) ... [2024-11-18 23:59:22,860 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:22" (1/1) ... [2024-11-18 23:59:22,862 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:22" (1/1) ... [2024-11-18 23:59:22,863 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:22" (1/1) ... [2024-11-18 23:59:22,864 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:22" (1/1) ... [2024-11-18 23:59:22,866 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 23:59:22,867 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 23:59:22,867 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 23:59:22,867 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 23:59:22,868 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:22" (1/1) ... [2024-11-18 23:59:22,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 23:59:22,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 23:59:22,899 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) [2024-11-18 23:59:22,902 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 [2024-11-18 23:59:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 23:59:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-18 23:59:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 23:59:22,939 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 23:59:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 23:59:22,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 23:59:23,000 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 23:59:23,001 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 23:59:23,182 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-18 23:59:23,182 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 23:59:23,194 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 23:59:23,195 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 23:59:23,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:59:23 BoogieIcfgContainer [2024-11-18 23:59:23,195 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 23:59:23,197 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 23:59:23,198 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 23:59:23,200 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 23:59:23,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:59:22" (1/3) ... [2024-11-18 23:59:23,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3062c26d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:59:23, skipping insertion in model container [2024-11-18 23:59:23,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:59:22" (2/3) ... [2024-11-18 23:59:23,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3062c26d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:59:23, skipping insertion in model container [2024-11-18 23:59:23,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:59:23" (3/3) ... [2024-11-18 23:59:23,204 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-9.i [2024-11-18 23:59:23,218 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 23:59:23,218 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 23:59:23,274 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 23:59:23,280 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;@6081ab4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 23:59:23,281 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 23:59:23,285 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-18 23:59:23,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-18 23:59:23,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:59:23,292 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:59:23,293 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:59:23,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:59:23,298 INFO L85 PathProgramCache]: Analyzing trace with hash 471993809, now seen corresponding path program 1 times [2024-11-18 23:59:23,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 23:59:23,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [397239500] [2024-11-18 23:59:23,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:59:23,311 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 [2024-11-18 23:59:23,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 23:59:23,314 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) [2024-11-18 23:59:23,315 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 [2024-11-18 23:59:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:59:23,426 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 23:59:23,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 23:59:23,455 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-18 23:59:23,456 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 23:59:23,456 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 23:59:23,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [397239500] [2024-11-18 23:59:23,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [397239500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:59:23,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:59:23,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 23:59:23,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201961692] [2024-11-18 23:59:23,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:59:23,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 23:59:23,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 23:59:23,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 23:59:23,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 23:59:23,483 INFO L87 Difference]: Start difference. First operand has 34 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 23:59:23,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:59:23,500 INFO L93 Difference]: Finished difference Result 60 states and 89 transitions. [2024-11-18 23:59:23,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 23:59:23,503 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2024-11-18 23:59:23,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:59:23,507 INFO L225 Difference]: With dead ends: 60 [2024-11-18 23:59:23,507 INFO L226 Difference]: Without dead ends: 29 [2024-11-18 23:59:23,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 23:59:23,513 INFO L432 NwaCegarLoop]: 36 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, 36 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 [2024-11-18 23:59:23,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 23:59:23,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-18 23:59:23,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-18 23:59:23,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-18 23:59:23,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2024-11-18 23:59:23,549 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 42 [2024-11-18 23:59:23,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:59:23,549 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2024-11-18 23:59:23,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 23:59:23,550 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2024-11-18 23:59:23,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-18 23:59:23,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:59:23,553 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:59:23,558 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 [2024-11-18 23:59:23,758 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 [2024-11-18 23:59:23,758 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:59:23,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:59:23,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1535824595, now seen corresponding path program 1 times [2024-11-18 23:59:23,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 23:59:23,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [544742255] [2024-11-18 23:59:23,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:59:23,760 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 [2024-11-18 23:59:23,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 23:59:23,762 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) [2024-11-18 23:59:23,763 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 [2024-11-18 23:59:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:59:23,856 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 23:59:23,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 23:59:23,949 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-18 23:59:23,949 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 23:59:23,950 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 23:59:23,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [544742255] [2024-11-18 23:59:23,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [544742255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:59:23,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:59:23,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 23:59:23,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167891196] [2024-11-18 23:59:23,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:59:23,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 23:59:23,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 23:59:23,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 23:59:23,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 23:59:23,952 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-18 23:59:24,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:59:24,034 INFO L93 Difference]: Finished difference Result 90 states and 112 transitions. [2024-11-18 23:59:24,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 23:59:24,035 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 42 [2024-11-18 23:59:24,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:59:24,037 INFO L225 Difference]: With dead ends: 90 [2024-11-18 23:59:24,037 INFO L226 Difference]: Without dead ends: 64 [2024-11-18 23:59:24,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 23:59:24,039 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 37 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 23:59:24,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 98 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 23:59:24,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-18 23:59:24,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 53. [2024-11-18 23:59:24,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 40 states have (on average 1.175) internal successors, (47), 40 states have internal predecessors, (47), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-18 23:59:24,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2024-11-18 23:59:24,057 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 42 [2024-11-18 23:59:24,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:59:24,058 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2024-11-18 23:59:24,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-18 23:59:24,058 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2024-11-18 23:59:24,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-18 23:59:24,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:59:24,060 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:59:24,067 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 (3)] Ended with exit code 0 [2024-11-18 23:59:24,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 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 [2024-11-18 23:59:24,261 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:59:24,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:59:24,262 INFO L85 PathProgramCache]: Analyzing trace with hash -985318329, now seen corresponding path program 1 times [2024-11-18 23:59:24,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 23:59:24,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1001563888] [2024-11-18 23:59:24,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:59:24,263 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 [2024-11-18 23:59:24,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 23:59:24,265 INFO L229 MonitoredProcess]: Starting monitored process 4 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) [2024-11-18 23:59:24,266 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 (4)] Waiting until timeout for monitored process [2024-11-18 23:59:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:59:24,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 23:59:24,322 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 23:59:24,380 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-18 23:59:24,380 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 23:59:24,381 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 23:59:24,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1001563888] [2024-11-18 23:59:24,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1001563888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:59:24,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:59:24,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 23:59:24,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982371761] [2024-11-18 23:59:24,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:59:24,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 23:59:24,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 23:59:24,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 23:59:24,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 23:59:24,383 INFO L87 Difference]: Start difference. First operand 53 states and 67 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-18 23:59:24,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:59:24,477 INFO L93 Difference]: Finished difference Result 120 states and 152 transitions. [2024-11-18 23:59:24,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 23:59:24,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 43 [2024-11-18 23:59:24,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:59:24,478 INFO L225 Difference]: With dead ends: 120 [2024-11-18 23:59:24,478 INFO L226 Difference]: Without dead ends: 70 [2024-11-18 23:59:24,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 23:59:24,480 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 29 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 23:59:24,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 110 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 23:59:24,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-18 23:59:24,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 53. [2024-11-18 23:59:24,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 40 states have (on average 1.125) internal successors, (45), 40 states have internal predecessors, (45), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-18 23:59:24,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 65 transitions. [2024-11-18 23:59:24,490 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 65 transitions. Word has length 43 [2024-11-18 23:59:24,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:59:24,490 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 65 transitions. [2024-11-18 23:59:24,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-18 23:59:24,490 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2024-11-18 23:59:24,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-18 23:59:24,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:59:24,491 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:59:24,496 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 (4)] Ended with exit code 0 [2024-11-18 23:59:24,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /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 [2024-11-18 23:59:24,692 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:59:24,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:59:24,692 INFO L85 PathProgramCache]: Analyzing trace with hash -983471287, now seen corresponding path program 1 times [2024-11-18 23:59:24,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 23:59:24,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571909493] [2024-11-18 23:59:24,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:59:24,693 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 [2024-11-18 23:59:24,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 23:59:24,695 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) [2024-11-18 23:59:24,696 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 [2024-11-18 23:59:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:59:24,754 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-18 23:59:24,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 23:59:29,499 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-18 23:59:29,499 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 23:59:29,499 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 23:59:29,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571909493] [2024-11-18 23:59:29,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571909493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:59:29,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:59:29,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-18 23:59:29,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851368113] [2024-11-18 23:59:29,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:59:29,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 23:59:29,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 23:59:29,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 23:59:29,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-18 23:59:29,506 INFO L87 Difference]: Start difference. First operand 53 states and 65 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-18 23:59:30,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:59:30,087 INFO L93 Difference]: Finished difference Result 77 states and 87 transitions. [2024-11-18 23:59:30,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 23:59:30,087 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 43 [2024-11-18 23:59:30,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:59:30,088 INFO L225 Difference]: With dead ends: 77 [2024-11-18 23:59:30,089 INFO L226 Difference]: Without dead ends: 75 [2024-11-18 23:59:30,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-18 23:59:30,090 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 53 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 23:59:30,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 113 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 23:59:30,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-18 23:59:30,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 66. [2024-11-18 23:59:30,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 51 states have (on average 1.0980392156862746) internal successors, (56), 51 states have internal predecessors, (56), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-18 23:59:30,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 76 transitions. [2024-11-18 23:59:30,102 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 76 transitions. Word has length 43 [2024-11-18 23:59:30,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:59:30,103 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 76 transitions. [2024-11-18 23:59:30,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-18 23:59:30,103 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 76 transitions. [2024-11-18 23:59:30,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-18 23:59:30,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:59:30,105 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:59:30,111 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 (5)] Ended with exit code 0 [2024-11-18 23:59:30,305 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 [2024-11-18 23:59:30,306 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:59:30,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:59:30,306 INFO L85 PathProgramCache]: Analyzing trace with hash 791536075, now seen corresponding path program 1 times [2024-11-18 23:59:30,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 23:59:30,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725990466] [2024-11-18 23:59:30,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:59:30,307 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 [2024-11-18 23:59:30,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 23:59:30,309 INFO L229 MonitoredProcess]: Starting monitored process 6 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) [2024-11-18 23:59:30,311 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 (6)] Waiting until timeout for monitored process [2024-11-18 23:59:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:59:30,371 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-18 23:59:30,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 23:59:32,403 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-18 23:59:32,403 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 23:59:32,403 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 23:59:32,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [725990466] [2024-11-18 23:59:32,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [725990466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:59:32,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:59:32,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-18 23:59:32,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993498113] [2024-11-18 23:59:32,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:59:32,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 23:59:32,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 23:59:32,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 23:59:32,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-18 23:59:32,423 INFO L87 Difference]: Start difference. First operand 66 states and 76 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-18 23:59:33,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:59:33,083 INFO L93 Difference]: Finished difference Result 75 states and 85 transitions. [2024-11-18 23:59:33,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 23:59:33,084 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 43 [2024-11-18 23:59:33,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:59:33,084 INFO L225 Difference]: With dead ends: 75 [2024-11-18 23:59:33,084 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 23:59:33,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-18 23:59:33,085 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 50 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 23:59:33,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 113 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 23:59:33,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 23:59:33,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 23:59:33,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 23:59:33,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 23:59:33,086 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2024-11-18 23:59:33,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:59:33,086 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 23:59:33,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-18 23:59:33,086 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 23:59:33,087 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 23:59:33,089 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 23:59:33,094 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 (6)] Ended with exit code 0 [2024-11-18 23:59:33,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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 [2024-11-18 23:59:33,296 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-18 23:59:33,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 23:59:34,127 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 23:59:34,136 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-18 23:59:34,136 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-18 23:59:34,136 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-18 23:59:34,136 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-18 23:59:34,137 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-18 23:59:34,137 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-18 23:59:34,137 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-18 23:59:34,138 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-18 23:59:34,138 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-18 23:59:34,138 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-18 23:59:34,138 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-18 23:59:34,138 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-18 23:59:34,149 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-18 23:59:34,149 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-18 23:59:34,150 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-18 23:59:34,150 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-18 23:59:34,150 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-18 23:59:34,150 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-18 23:59:34,150 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-18 23:59:34,150 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-18 23:59:34,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:59:34 BoogieIcfgContainer [2024-11-18 23:59:34,156 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 23:59:34,157 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 23:59:34,157 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 23:59:34,157 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 23:59:34,157 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:59:23" (3/4) ... [2024-11-18 23:59:34,159 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 23:59:34,162 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-18 23:59:34,165 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-18 23:59:34,165 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-18 23:59:34,165 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-18 23:59:34,165 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 23:59:34,243 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 23:59:34,243 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 23:59:34,245 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 23:59:34,246 INFO L158 Benchmark]: Toolchain (without parser) took 11734.13ms. Allocated memory was 98.6MB in the beginning and 748.7MB in the end (delta: 650.1MB). Free memory was 70.7MB in the beginning and 601.6MB in the end (delta: -530.9MB). Peak memory consumption was 116.4MB. Max. memory is 16.1GB. [2024-11-18 23:59:34,246 INFO L158 Benchmark]: CDTParser took 0.75ms. Allocated memory is still 67.1MB. Free memory was 49.4MB in the beginning and 49.3MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 23:59:34,246 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.23ms. Allocated memory is still 98.6MB. Free memory was 70.7MB in the beginning and 56.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-18 23:59:34,246 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.76ms. Allocated memory is still 98.6MB. Free memory was 56.0MB in the beginning and 54.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 23:59:34,246 INFO L158 Benchmark]: Boogie Preprocessor took 31.55ms. Allocated memory is still 98.6MB. Free memory was 54.2MB in the beginning and 51.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 23:59:34,247 INFO L158 Benchmark]: RCFGBuilder took 328.09ms. Allocated memory is still 98.6MB. Free memory was 51.5MB in the beginning and 67.0MB in the end (delta: -15.5MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2024-11-18 23:59:34,247 INFO L158 Benchmark]: TraceAbstraction took 10959.05ms. Allocated memory was 98.6MB in the beginning and 748.7MB in the end (delta: 650.1MB). Free memory was 66.3MB in the beginning and 606.8MB in the end (delta: -540.5MB). Peak memory consumption was 107.5MB. Max. memory is 16.1GB. [2024-11-18 23:59:34,247 INFO L158 Benchmark]: Witness Printer took 88.38ms. Allocated memory is still 748.7MB. Free memory was 606.8MB in the beginning and 601.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-18 23:59:34,248 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75ms. Allocated memory is still 67.1MB. Free memory was 49.4MB in the beginning and 49.3MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.23ms. Allocated memory is still 98.6MB. Free memory was 70.7MB in the beginning and 56.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.76ms. Allocated memory is still 98.6MB. Free memory was 56.0MB in the beginning and 54.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.55ms. Allocated memory is still 98.6MB. Free memory was 54.2MB in the beginning and 51.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 328.09ms. Allocated memory is still 98.6MB. Free memory was 51.5MB in the beginning and 67.0MB in the end (delta: -15.5MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * TraceAbstraction took 10959.05ms. Allocated memory was 98.6MB in the beginning and 748.7MB in the end (delta: 650.1MB). Free memory was 66.3MB in the beginning and 606.8MB in the end (delta: -540.5MB). Peak memory consumption was 107.5MB. Max. memory is 16.1GB. * Witness Printer took 88.38ms. Allocated memory is still 748.7MB. Free memory was 606.8MB in the beginning and 601.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.0s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 171 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 169 mSDsluCounter, 470 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 298 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 341 IncrementalHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 172 mSDtfsCounter, 341 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=4, InterpolantAutomatonStates: 40, 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, 5 MinimizatonAttempts, 37 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 213 NumberOfCodeBlocks, 213 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 208 ConstructedInterpolants, 0 QuantifiedInterpolants, 1095 SizeOfPredicates, 21 NumberOfNonLiveVariables, 414 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 200/200 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 81]: Loop Invariant Derived loop invariant: (((100 == last_1_var_1_8) && (var_1_8 == 100)) || (((var_1_10 == var_1_11) && (var_1_1 == var_1_3)) && (var_1_9 == 64))) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: (((100 == last_1_var_1_8) && (var_1_8 == 100)) || (var_1_9 == 64)) Ensures: (((0 != cond) && (((100 == last_1_var_1_8) && (var_1_8 == 100)) || (var_1_9 == 64))) && (((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_3 == \old(var_1_3))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9))) && (var_1_10 == \old(var_1_10))) && (var_1_11 == \old(var_1_11))) && (var_1_12 == \old(var_1_12))) && (last_1_var_1_8 == \old(last_1_var_1_8))) && (last_1_var_1_10 == \old(last_1_var_1_10)))) RESULT: Ultimate proved your program to be correct! [2024-11-18 23:59:34,274 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 Writing output log to file Ultimate.log Result: TRUE