/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-41.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 09:34:32,915 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 09:34:32,971 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 09:34:32,974 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 09:34:32,975 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 09:34:32,987 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 09:34:32,988 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 09:34:32,988 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 09:34:32,988 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 09:34:32,989 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 09:34:32,989 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 09:34:32,989 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 09:34:32,990 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 09:34:32,990 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 09:34:32,990 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 09:34:32,990 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 09:34:32,991 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 09:34:32,991 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 09:34:32,991 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 09:34:32,991 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 09:34:32,991 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 09:34:32,992 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 09:34:32,992 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 09:34:32,992 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 09:34:32,993 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 09:34:32,993 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 09:34:32,993 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 09:34:32,993 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 09:34:32,993 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 09:34:32,993 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 09:34:32,994 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 09:34:32,994 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 09:34:32,994 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 09:34:32,994 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 09:34:32,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 09:34:32,995 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 09:34:32,995 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 09:34:32,995 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 09:34:32,995 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 09:34:32,995 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 09:34:32,995 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 09:34:32,995 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 09:34:32,996 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 09:34:32,996 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 09:34:32,996 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 09:34:32,996 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 09:34:32,996 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 09:34:33,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 09:34:33,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 09:34:33,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 09:34:33,202 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 09:34:33,203 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 09:34:33,204 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-41.i [2023-12-24 09:34:34,286 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 09:34:34,507 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 09:34:34,511 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-41.i [2023-12-24 09:34:34,527 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4a21913f/72be527b19714b02944903bfa21e69e1/FLAGe5eda4bb8 [2023-12-24 09:34:34,538 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4a21913f/72be527b19714b02944903bfa21e69e1 [2023-12-24 09:34:34,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 09:34:34,541 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 09:34:34,542 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 09:34:34,542 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 09:34:34,546 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 09:34:34,546 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 09:34:34" (1/1) ... [2023-12-24 09:34:34,547 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4729ce73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 09:34:34, skipping insertion in model container [2023-12-24 09:34:34,547 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 09:34:34" (1/1) ... [2023-12-24 09:34:34,591 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 09:34:34,713 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-41.i[916,929] [2023-12-24 09:34:34,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 09:34:34,873 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 09:34:34,881 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-41.i[916,929] [2023-12-24 09:34:34,962 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 09:34:34,978 INFO L206 MainTranslator]: Completed translation [2023-12-24 09:34:34,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 09:34:34 WrapperNode [2023-12-24 09:34:34,979 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 09:34:34,980 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 09:34:34,980 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 09:34:34,980 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 09:34:34,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 09:34:34" (1/1) ... [2023-12-24 09:34:35,005 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 09:34:34" (1/1) ... [2023-12-24 09:34:35,055 INFO L138 Inliner]: procedures = 27, calls = 74, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 558 [2023-12-24 09:34:35,055 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 09:34:35,056 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 09:34:35,056 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 09:34:35,056 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 09:34:35,090 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 09:34:34" (1/1) ... [2023-12-24 09:34:35,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 09:34:34" (1/1) ... [2023-12-24 09:34:35,098 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 09:34:34" (1/1) ... [2023-12-24 09:34:35,163 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]. [2023-12-24 09:34:35,163 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 09:34:34" (1/1) ... [2023-12-24 09:34:35,163 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 09:34:34" (1/1) ... [2023-12-24 09:34:35,237 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 09:34:34" (1/1) ... [2023-12-24 09:34:35,241 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 09:34:34" (1/1) ... [2023-12-24 09:34:35,264 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 09:34:34" (1/1) ... [2023-12-24 09:34:35,268 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 09:34:34" (1/1) ... [2023-12-24 09:34:35,283 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 09:34:35,284 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 09:34:35,284 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 09:34:35,284 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 09:34:35,284 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 09:34:34" (1/1) ... [2023-12-24 09:34:35,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 09:34:35,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 09:34:35,311 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) [2023-12-24 09:34:35,354 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 [2023-12-24 09:34:35,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 09:34:35,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 09:34:35,362 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 09:34:35,363 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 09:34:35,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 09:34:35,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 09:34:35,486 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 09:34:35,487 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 09:35:38,785 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 09:35:38,870 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 09:35:38,870 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 09:35:38,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 09:35:38 BoogieIcfgContainer [2023-12-24 09:35:38,871 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 09:35:38,875 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 09:35:38,875 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 09:35:38,877 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 09:35:38,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 09:34:34" (1/3) ... [2023-12-24 09:35:38,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221e77cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 09:35:38, skipping insertion in model container [2023-12-24 09:35:38,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 09:34:34" (2/3) ... [2023-12-24 09:35:38,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221e77cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 09:35:38, skipping insertion in model container [2023-12-24 09:35:38,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 09:35:38" (3/3) ... [2023-12-24 09:35:38,881 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-41.i [2023-12-24 09:35:38,894 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 09:35:38,895 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 09:35:38,956 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 09:35:38,964 INFO L357 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, mHoare=true, 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;@774f8a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 09:35:38,964 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 09:35:38,970 INFO L276 IsEmpty]: Start isEmpty. Operand has 211 states, 147 states have (on average 1.5918367346938775) internal successors, (234), 148 states have internal predecessors, (234), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-12-24 09:35:38,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2023-12-24 09:35:38,999 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 09:35:39,000 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 09:35:39,000 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 09:35:39,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 09:35:39,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1821846237, now seen corresponding path program 1 times [2023-12-24 09:35:39,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 09:35:39,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [637484748] [2023-12-24 09:35:39,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 09:35:39,021 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 [2023-12-24 09:35:39,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 09:35:39,024 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) [2023-12-24 09:35:39,045 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 [2023-12-24 09:35:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 09:35:42,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 09:35:42,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 09:35:54,922 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2023-12-24 09:35:54,923 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 09:35:54,923 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 09:35:54,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [637484748] [2023-12-24 09:35:54,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [637484748] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 09:35:54,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 09:35:54,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 09:35:54,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038300079] [2023-12-24 09:35:54,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 09:35:54,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 09:35:54,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 09:35:54,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 09:35:54,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 09:35:54,962 INFO L87 Difference]: Start difference. First operand has 211 states, 147 states have (on average 1.5918367346938775) internal successors, (234), 148 states have internal predecessors, (234), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-12-24 09:36:01,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:36:05,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:36:09,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:36:16,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:36:20,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:36:24,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:36:28,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:36:32,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:36:32,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 09:36:32,529 INFO L93 Difference]: Finished difference Result 772 states and 1444 transitions. [2023-12-24 09:36:33,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 09:36:33,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 410 [2023-12-24 09:36:33,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 09:36:33,110 INFO L225 Difference]: With dead ends: 772 [2023-12-24 09:36:33,111 INFO L226 Difference]: Without dead ends: 562 [2023-12-24 09:36:33,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 09:36:33,125 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 580 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 140 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.4s IncrementalHoareTripleChecker+Time [2023-12-24 09:36:33,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 1077 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 28 Invalid, 8 Unknown, 0 Unchecked, 37.4s Time] [2023-12-24 09:36:33,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2023-12-24 09:36:33,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 380. [2023-12-24 09:36:33,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 255 states have (on average 1.5098039215686274) internal successors, (385), 255 states have internal predecessors, (385), 122 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2023-12-24 09:36:33,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 629 transitions. [2023-12-24 09:36:33,245 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 629 transitions. Word has length 410 [2023-12-24 09:36:33,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 09:36:33,250 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 629 transitions. [2023-12-24 09:36:33,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-12-24 09:36:33,251 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 629 transitions. [2023-12-24 09:36:33,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2023-12-24 09:36:33,257 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 09:36:33,257 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 09:36:33,329 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 [2023-12-24 09:36:33,472 WARN L477 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 [2023-12-24 09:36:33,473 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 09:36:33,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 09:36:33,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1142573983, now seen corresponding path program 1 times [2023-12-24 09:36:33,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 09:36:33,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18535556] [2023-12-24 09:36:33,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 09:36:33,477 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 [2023-12-24 09:36:33,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 09:36:33,486 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) [2023-12-24 09:36:33,492 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 [2023-12-24 09:36:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 09:36:36,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 09:36:36,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 09:37:24,038 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2023-12-24 09:37:24,038 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 09:37:24,038 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 09:37:24,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18535556] [2023-12-24 09:37:24,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [18535556] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 09:37:24,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 09:37:24,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 09:37:24,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973169971] [2023-12-24 09:37:24,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 09:37:24,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 09:37:24,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 09:37:24,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 09:37:24,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-24 09:37:24,046 INFO L87 Difference]: Start difference. First operand 380 states and 629 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-12-24 09:37:37,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:37:41,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:37:45,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:37:49,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:37:54,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:37:58,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:38:02,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:38:06,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:38:07,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 09:38:07,603 INFO L93 Difference]: Finished difference Result 1050 states and 1745 transitions. [2023-12-24 09:38:07,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 09:38:07,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 410 [2023-12-24 09:38:07,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 09:38:07,609 INFO L225 Difference]: With dead ends: 1050 [2023-12-24 09:38:07,609 INFO L226 Difference]: Without dead ends: 671 [2023-12-24 09:38:07,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 406 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-24 09:38:07,612 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 433 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 123 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.5s IncrementalHoareTripleChecker+Time [2023-12-24 09:38:07,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 1239 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 178 Invalid, 7 Unknown, 0 Unchecked, 42.5s Time] [2023-12-24 09:38:07,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2023-12-24 09:38:07,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 491. [2023-12-24 09:38:07,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 304 states have (on average 1.444078947368421) internal successors, (439), 304 states have internal predecessors, (439), 183 states have call successors, (183), 3 states have call predecessors, (183), 3 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2023-12-24 09:38:07,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 805 transitions. [2023-12-24 09:38:07,646 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 805 transitions. Word has length 410 [2023-12-24 09:38:07,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 09:38:07,647 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 805 transitions. [2023-12-24 09:38:07,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-12-24 09:38:07,648 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 805 transitions. [2023-12-24 09:38:07,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2023-12-24 09:38:07,651 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 09:38:07,652 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 09:38:07,715 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 [2023-12-24 09:38:07,880 WARN L477 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 [2023-12-24 09:38:07,881 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 09:38:07,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 09:38:07,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1222699539, now seen corresponding path program 1 times [2023-12-24 09:38:07,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 09:38:07,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1201942141] [2023-12-24 09:38:07,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 09:38:07,882 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 [2023-12-24 09:38:07,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 09:38:07,887 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) [2023-12-24 09:38:07,888 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 [2023-12-24 09:38:10,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 09:38:10,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 09:38:10,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 09:38:28,626 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2023-12-24 09:38:28,626 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 09:38:28,627 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 09:38:28,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1201942141] [2023-12-24 09:38:28,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1201942141] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 09:38:28,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 09:38:28,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 09:38:28,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683231181] [2023-12-24 09:38:28,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 09:38:28,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 09:38:28,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 09:38:28,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 09:38:28,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-24 09:38:28,629 INFO L87 Difference]: Start difference. First operand 491 states and 805 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-12-24 09:38:36,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:38:42,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:38:46,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:38:52,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.45s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:38:56,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:39:02,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:39:06,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:39:10,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:39:17,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:39:21,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:39:28,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:39:32,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:39:36,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:39:42,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.54s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:39:46,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:39:50,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:39:54,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:39:58,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:40:02,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:40:06,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:40:07,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 09:40:07,050 INFO L93 Difference]: Finished difference Result 2282 states and 3777 transitions. [2023-12-24 09:40:07,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-24 09:40:07,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 411 [2023-12-24 09:40:07,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 09:40:07,060 INFO L225 Difference]: With dead ends: 2282 [2023-12-24 09:40:07,060 INFO L226 Difference]: Without dead ends: 1903 [2023-12-24 09:40:07,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-24 09:40:07,063 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 1471 mSDsluCounter, 1051 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 417 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 93.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1471 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 417 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 97.6s IncrementalHoareTripleChecker+Time [2023-12-24 09:40:07,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1471 Valid, 1420 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [417 Valid, 61 Invalid, 20 Unknown, 0 Unchecked, 97.6s Time] [2023-12-24 09:40:07,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1903 states. [2023-12-24 09:40:07,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1903 to 986. [2023-12-24 09:40:07,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 675 states have (on average 1.4933333333333334) internal successors, (1008), 675 states have internal predecessors, (1008), 305 states have call successors, (305), 5 states have call predecessors, (305), 5 states have return successors, (305), 305 states have call predecessors, (305), 305 states have call successors, (305) [2023-12-24 09:40:07,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1618 transitions. [2023-12-24 09:40:07,147 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1618 transitions. Word has length 411 [2023-12-24 09:40:07,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 09:40:07,148 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1618 transitions. [2023-12-24 09:40:07,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-12-24 09:40:07,148 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1618 transitions. [2023-12-24 09:40:07,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2023-12-24 09:40:07,151 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 09:40:07,151 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 09:40:07,224 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 [2023-12-24 09:40:07,372 WARN L477 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 [2023-12-24 09:40:07,373 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 09:40:07,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 09:40:07,374 INFO L85 PathProgramCache]: Analyzing trace with hash -267967851, now seen corresponding path program 1 times [2023-12-24 09:40:07,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 09:40:07,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1067612766] [2023-12-24 09:40:07,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 09:40:07,375 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 [2023-12-24 09:40:07,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 09:40:07,376 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) [2023-12-24 09:40:07,377 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 [2023-12-24 09:40:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 09:40:10,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 09:40:10,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 09:40:21,067 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 2867 proven. 84 refuted. 0 times theorem prover too weak. 4369 trivial. 0 not checked. [2023-12-24 09:40:21,067 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 09:40:28,164 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 270 proven. 87 refuted. 0 times theorem prover too weak. 6963 trivial. 0 not checked. [2023-12-24 09:40:28,164 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 09:40:28,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1067612766] [2023-12-24 09:40:28,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1067612766] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 09:40:28,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 09:40:28,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2023-12-24 09:40:28,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092381025] [2023-12-24 09:40:28,165 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 09:40:28,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-24 09:40:28,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 09:40:28,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-24 09:40:28,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-24 09:40:28,167 INFO L87 Difference]: Start difference. First operand 986 states and 1618 transitions. Second operand has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 3 states have call successors, (76), 3 states have call predecessors, (76), 6 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) [2023-12-24 09:40:51,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:40:57,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:41:01,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:41:05,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:41:09,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:41:13,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:41:22,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 09:41:22,505 INFO L93 Difference]: Finished difference Result 1716 states and 2752 transitions. [2023-12-24 09:41:22,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-24 09:41:22,506 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 3 states have call successors, (76), 3 states have call predecessors, (76), 6 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) Word has length 411 [2023-12-24 09:41:22,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 09:41:22,511 INFO L225 Difference]: With dead ends: 1716 [2023-12-24 09:41:22,511 INFO L226 Difference]: Without dead ends: 842 [2023-12-24 09:41:22,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 835 GetRequests, 810 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=214, Invalid=436, Unknown=0, NotChecked=0, Total=650 [2023-12-24 09:41:22,515 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 587 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 317 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.7s IncrementalHoareTripleChecker+Time [2023-12-24 09:41:22,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 982 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 1006 Invalid, 5 Unknown, 0 Unchecked, 50.7s Time] [2023-12-24 09:41:22,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2023-12-24 09:41:22,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 550. [2023-12-24 09:41:22,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 357 states have (on average 1.3977591036414565) internal successors, (499), 357 states have internal predecessors, (499), 183 states have call successors, (183), 9 states have call predecessors, (183), 9 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2023-12-24 09:41:22,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 865 transitions. [2023-12-24 09:41:22,585 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 865 transitions. Word has length 411 [2023-12-24 09:41:22,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 09:41:22,586 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 865 transitions. [2023-12-24 09:41:22,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 3 states have call successors, (76), 3 states have call predecessors, (76), 6 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) [2023-12-24 09:41:22,587 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 865 transitions. [2023-12-24 09:41:22,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2023-12-24 09:41:22,590 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 09:41:22,590 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 09:41:22,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-24 09:41:22,828 WARN L477 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 [2023-12-24 09:41:22,829 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 09:41:22,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 09:41:22,829 INFO L85 PathProgramCache]: Analyzing trace with hash 42711543, now seen corresponding path program 1 times [2023-12-24 09:41:22,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 09:41:22,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828229673] [2023-12-24 09:41:22,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 09:41:22,831 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 [2023-12-24 09:41:22,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 09:41:22,833 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) [2023-12-24 09:41:22,834 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 [2023-12-24 09:41:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 09:41:26,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 09:41:26,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 09:42:04,591 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2023-12-24 09:42:04,591 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 09:42:04,592 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 09:42:04,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828229673] [2023-12-24 09:42:04,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828229673] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 09:42:04,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 09:42:04,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 09:42:04,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36493669] [2023-12-24 09:42:04,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 09:42:04,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 09:42:04,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 09:42:04,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 09:42:04,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 09:42:04,593 INFO L87 Difference]: Start difference. First operand 550 states and 865 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-12-24 09:42:39,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.45s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:42:41,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 09:42:45,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.36s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:42:49,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:42:53,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 09:42:57,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:43:01,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 09:43:05,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:43:07,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 09:43:13,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 09:43:16,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 09:43:17,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 09:43:20,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 09:43:21,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 09:43:25,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.66s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 09:43:28,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 09:43:34,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 09:43:37,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 09:43:45,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 09:43:49,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 09:43:55,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 09:44:10,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.66s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 09:44:12,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 09:44:17,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 09:44:22,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 09:44:24,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 09:44:24,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 09:44:24,870 INFO L93 Difference]: Finished difference Result 993 states and 1565 transitions. [2023-12-24 09:44:24,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-24 09:44:24,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 412 [2023-12-24 09:44:24,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 09:44:24,890 INFO L225 Difference]: With dead ends: 993 [2023-12-24 09:44:24,891 INFO L226 Difference]: Without dead ends: 563 [2023-12-24 09:44:24,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 09:44:24,892 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 339 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 122 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 136.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 139.5s IncrementalHoareTripleChecker+Time [2023-12-24 09:44:24,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 493 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 211 Invalid, 10 Unknown, 0 Unchecked, 139.5s Time] [2023-12-24 09:44:24,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2023-12-24 09:44:24,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 550. [2023-12-24 09:44:24,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 357 states have (on average 1.3949579831932772) internal successors, (498), 357 states have internal predecessors, (498), 183 states have call successors, (183), 9 states have call predecessors, (183), 9 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2023-12-24 09:44:24,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 864 transitions. [2023-12-24 09:44:24,935 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 864 transitions. Word has length 412 [2023-12-24 09:44:24,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 09:44:24,936 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 864 transitions. [2023-12-24 09:44:24,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-12-24 09:44:24,936 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 864 transitions. [2023-12-24 09:44:24,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2023-12-24 09:44:24,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 09:44:24,938 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 09:44:25,006 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 [2023-12-24 09:44:25,152 WARN L477 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 [2023-12-24 09:44:25,152 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 09:44:25,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 09:44:25,153 INFO L85 PathProgramCache]: Analyzing trace with hash -520945650, now seen corresponding path program 1 times [2023-12-24 09:44:25,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 09:44:25,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [815213266] [2023-12-24 09:44:25,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 09:44:25,154 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 [2023-12-24 09:44:25,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 09:44:25,156 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 09:44:25,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-24 09:44:28,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 09:44:28,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-24 09:44:28,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 09:44:39,016 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 2009 proven. 48 refuted. 0 times theorem prover too weak. 5263 trivial. 0 not checked. [2023-12-24 09:44:39,016 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 09:44:44,425 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 153 proven. 27 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2023-12-24 09:44:44,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 09:44:44,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [815213266] [2023-12-24 09:44:44,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [815213266] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 09:44:44,425 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 09:44:44,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 14 [2023-12-24 09:44:44,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604496470] [2023-12-24 09:44:44,426 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 09:44:44,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-24 09:44:44,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 09:44:44,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-24 09:44:44,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-12-24 09:44:44,427 INFO L87 Difference]: Start difference. First operand 550 states and 864 transitions. Second operand has 14 states, 14 states have (on average 11.714285714285714) internal successors, (164), 14 states have internal predecessors, (164), 3 states have call successors, (70), 3 states have call predecessors, (70), 5 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) [2023-12-24 09:45:07,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:45:11,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:45:15,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:45:19,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:45:23,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:45:27,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:45:31,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:45:50,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 09:45:50,086 INFO L93 Difference]: Finished difference Result 825 states and 1275 transitions. [2023-12-24 09:45:50,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-24 09:45:50,100 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.714285714285714) internal successors, (164), 14 states have internal predecessors, (164), 3 states have call successors, (70), 3 states have call predecessors, (70), 5 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) Word has length 413 [2023-12-24 09:45:50,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 09:45:50,102 INFO L225 Difference]: With dead ends: 825 [2023-12-24 09:45:50,102 INFO L226 Difference]: Without dead ends: 391 [2023-12-24 09:45:50,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 841 GetRequests, 813 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=215, Invalid=597, Unknown=0, NotChecked=0, Total=812 [2023-12-24 09:45:50,103 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 973 mSDsluCounter, 1420 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 565 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 1738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 565 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.3s IncrementalHoareTripleChecker+Time [2023-12-24 09:45:50,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 1793 Invalid, 1738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [565 Valid, 1166 Invalid, 7 Unknown, 0 Unchecked, 60.3s Time] [2023-12-24 09:45:50,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2023-12-24 09:45:50,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 368. [2023-12-24 09:45:50,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 235 states have (on average 1.3148936170212766) internal successors, (309), 235 states have internal predecessors, (309), 122 states have call successors, (122), 10 states have call predecessors, (122), 10 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2023-12-24 09:45:50,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 553 transitions. [2023-12-24 09:45:50,135 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 553 transitions. Word has length 413 [2023-12-24 09:45:50,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 09:45:50,135 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 553 transitions. [2023-12-24 09:45:50,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.714285714285714) internal successors, (164), 14 states have internal predecessors, (164), 3 states have call successors, (70), 3 states have call predecessors, (70), 5 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) [2023-12-24 09:45:50,136 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 553 transitions. [2023-12-24 09:45:50,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2023-12-24 09:45:50,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 09:45:50,138 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 09:45:50,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-24 09:45:50,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /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 [2023-12-24 09:45:50,340 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 09:45:50,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 09:45:50,340 INFO L85 PathProgramCache]: Analyzing trace with hash -541049208, now seen corresponding path program 1 times [2023-12-24 09:45:50,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 09:45:50,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [705871765] [2023-12-24 09:45:50,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 09:45:50,341 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 [2023-12-24 09:45:50,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 09:45:50,342 INFO L229 MonitoredProcess]: Starting monitored process 8 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) [2023-12-24 09:45:50,381 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 (8)] Waiting until timeout for monitored process [2023-12-24 09:45:53,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 09:45:53,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-24 09:45:53,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 09:46:52,605 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 3258 proven. 468 refuted. 0 times theorem prover too weak. 3594 trivial. 0 not checked. [2023-12-24 09:46:52,606 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 09:47:03,056 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 09:47:03,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [705871765] [2023-12-24 09:47:03,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [705871765] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 09:47:03,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [562931930] [2023-12-24 09:47:03,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 09:47:03,057 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 09:47:03,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 09:47:03,101 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 09:47:03,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-24 09:47:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 09:47:05,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-24 09:47:05,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 09:47:08,129 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2023-12-24 09:47:08,130 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 09:47:08,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [562931930] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 09:47:08,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 09:47:08,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [15] total 16 [2023-12-24 09:47:08,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363805606] [2023-12-24 09:47:08,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 09:47:08,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 09:47:08,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 09:47:08,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 09:47:08,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2023-12-24 09:47:08,132 INFO L87 Difference]: Start difference. First operand 368 states and 553 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-12-24 09:47:10,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:47:16,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:47:18,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 09:47:18,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 09:47:18,257 INFO L93 Difference]: Finished difference Result 612 states and 923 transitions. [2023-12-24 09:47:18,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 09:47:18,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 414 [2023-12-24 09:47:18,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 09:47:18,262 INFO L225 Difference]: With dead ends: 612 [2023-12-24 09:47:18,262 INFO L226 Difference]: Without dead ends: 372 [2023-12-24 09:47:18,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1122 GetRequests, 1102 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2023-12-24 09:47:18,264 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 267 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2023-12-24 09:47:18,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 670 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 1 Unknown, 0 Unchecked, 10.1s Time] [2023-12-24 09:47:18,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2023-12-24 09:47:18,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 366. [2023-12-24 09:47:18,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 233 states have (on average 1.296137339055794) internal successors, (302), 233 states have internal predecessors, (302), 122 states have call successors, (122), 10 states have call predecessors, (122), 10 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2023-12-24 09:47:18,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 546 transitions. [2023-12-24 09:47:18,329 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 546 transitions. Word has length 414 [2023-12-24 09:47:18,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 09:47:18,330 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 546 transitions. [2023-12-24 09:47:18,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-12-24 09:47:18,330 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 546 transitions. [2023-12-24 09:47:18,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2023-12-24 09:47:18,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 09:47:18,332 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 09:47:18,342 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-24 09:47:18,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-24 09:47:18,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,8 /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 [2023-12-24 09:47:18,756 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 09:47:18,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 09:47:18,756 INFO L85 PathProgramCache]: Analyzing trace with hash 703931320, now seen corresponding path program 1 times [2023-12-24 09:47:18,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 09:47:18,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [838563303] [2023-12-24 09:47:18,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 09:47:18,757 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 [2023-12-24 09:47:18,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 09:47:18,759 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2023-12-24 09:47:18,761 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 (10)] Waiting until timeout for monitored process [2023-12-24 09:47:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 09:47:22,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-24 09:47:22,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 09:48:21,580 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 3258 proven. 468 refuted. 0 times theorem prover too weak. 3594 trivial. 0 not checked. [2023-12-24 09:48:21,581 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 09:48:31,479 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 09:48:31,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [838563303] [2023-12-24 09:48:31,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [838563303] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 09:48:31,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [487008369] [2023-12-24 09:48:31,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 09:48:31,479 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 09:48:31,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 09:48:31,481 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 09:48:31,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-24 09:48:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 09:48:42,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 09:48:42,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-24 09:49:10,586 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 09:49:10,592 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 09:49:10,593 WARN L340 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 (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 09:49:10,637 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 09:49:10,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-12-24 09:49:10,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-24 09:49:11,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,10 /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 [2023-12-24 09:49:11,038 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 416 with TraceHistMax 61,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. [2023-12-24 09:49:11,042 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 09:49:11,044 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 09:49:11,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 09:49:11 BoogieIcfgContainer [2023-12-24 09:49:11,049 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 09:49:11,049 INFO L158 Benchmark]: Toolchain (without parser) took 876508.38ms. Allocated memory is still 297.8MB. Free memory was 250.1MB in the beginning and 122.3MB in the end (delta: 127.8MB). Peak memory consumption was 129.2MB. Max. memory is 8.0GB. [2023-12-24 09:49:11,050 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 183.5MB. Free memory is still 137.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 09:49:11,051 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.15ms. Allocated memory is still 297.8MB. Free memory was 250.1MB in the beginning and 213.8MB in the end (delta: 36.3MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2023-12-24 09:49:11,052 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.44ms. Allocated memory is still 297.8MB. Free memory was 213.8MB in the beginning and 206.9MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-24 09:49:11,053 INFO L158 Benchmark]: Boogie Preprocessor took 227.12ms. Allocated memory is still 297.8MB. Free memory was 206.9MB in the beginning and 253.6MB in the end (delta: -46.7MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-24 09:49:11,053 INFO L158 Benchmark]: RCFGBuilder took 63587.55ms. Allocated memory is still 297.8MB. Free memory was 253.6MB in the beginning and 166.8MB in the end (delta: 86.8MB). Peak memory consumption was 87.0MB. Max. memory is 8.0GB. [2023-12-24 09:49:11,053 INFO L158 Benchmark]: TraceAbstraction took 812174.55ms. Allocated memory is still 297.8MB. Free memory was 166.3MB in the beginning and 122.3MB in the end (delta: 44.0MB). Peak memory consumption was 46.6MB. Max. memory is 8.0GB. [2023-12-24 09:49:11,055 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 183.5MB. Free memory is still 137.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 437.15ms. Allocated memory is still 297.8MB. Free memory was 250.1MB in the beginning and 213.8MB in the end (delta: 36.3MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 75.44ms. Allocated memory is still 297.8MB. Free memory was 213.8MB in the beginning and 206.9MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 227.12ms. Allocated memory is still 297.8MB. Free memory was 206.9MB in the beginning and 253.6MB in the end (delta: -46.7MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * RCFGBuilder took 63587.55ms. Allocated memory is still 297.8MB. Free memory was 253.6MB in the beginning and 166.8MB in the end (delta: 86.8MB). Peak memory consumption was 87.0MB. Max. memory is 8.0GB. * TraceAbstraction took 812174.55ms. Allocated memory is still 297.8MB. Free memory was 166.3MB in the beginning and 122.3MB in the end (delta: 44.0MB). Peak memory consumption was 46.6MB. Max. memory is 8.0GB. * 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 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 416 with TraceHistMax 61,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 812.1s, OverallIterations: 8, TraceHistogramMax: 61, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 450.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 58 mSolverCounterUnknown, 4653 SdHoareTripleChecker+Valid, 438.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4650 mSDsluCounter, 7674 SdHoareTripleChecker+Invalid, 424.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4967 mSDsCounter, 1687 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2659 IncrementalHoareTripleChecker+Invalid, 4404 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1687 mSolverCounterUnsat, 2707 mSDtfsCounter, 2659 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4446 GetRequests, 4354 SyntacticMatches, 2 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 28.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=986occurred in iteration=3, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 1613 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 21.0s SatisfiabilityAnalysisTime, 224.8s InterpolantComputationTime, 3295 NumberOfCodeBlocks, 3295 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 4109 ConstructedInterpolants, 17 QuantifiedInterpolants, 18222 SizeOfPredicates, 28 NumberOfNonLiveVariables, 5948 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 72486/73200 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: Timeout Completed graceful shutdown