/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_fillercode_fillercodestructure_filler-pr-co_file-70.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 12:32:06,787 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 12:32:06,856 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 12:32:06,860 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 12:32:06,861 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 12:32:06,882 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 12:32:06,883 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 12:32:06,883 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 12:32:06,883 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 12:32:06,887 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 12:32:06,887 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 12:32:06,888 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 12:32:06,888 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 12:32:06,889 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 12:32:06,889 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 12:32:06,890 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 12:32:06,890 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 12:32:06,890 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 12:32:06,890 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 12:32:06,890 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 12:32:06,890 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 12:32:06,891 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 12:32:06,891 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 12:32:06,891 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 12:32:06,891 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 12:32:06,891 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 12:32:06,891 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 12:32:06,891 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 12:32:06,892 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 12:32:06,892 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 12:32:06,892 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 12:32:06,892 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 12:32:06,893 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 12:32:06,893 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 12:32:06,893 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:32:06,893 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 12:32:06,893 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 12:32:06,893 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 12:32:06,893 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 12:32:06,893 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 12:32:06,893 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 12:32:06,894 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 12:32:06,894 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 12:32:06,894 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 12:32:06,895 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 12:32:06,895 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 12:32:06,895 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 12:32:07,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 12:32:07,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 12:32:07,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 12:32:07,099 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 12:32:07,099 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 12:32:07,100 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-70.i [2023-12-16 12:32:08,028 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 12:32:08,198 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 12:32:08,198 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-70.i [2023-12-16 12:32:08,209 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f7ee771e/91f537455af0485f9b11ec17969cfd51/FLAGdc10faa19 [2023-12-16 12:32:08,221 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f7ee771e/91f537455af0485f9b11ec17969cfd51 [2023-12-16 12:32:08,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 12:32:08,226 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 12:32:08,227 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 12:32:08,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 12:32:08,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 12:32:08,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:32:08" (1/1) ... [2023-12-16 12:32:08,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8508239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:08, skipping insertion in model container [2023-12-16 12:32:08,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:32:08" (1/1) ... [2023-12-16 12:32:08,257 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 12:32:08,369 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_fillercode_fillercodestructure_filler-pr-co_file-70.i[919,932] [2023-12-16 12:32:08,414 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:32:08,429 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 12:32:08,437 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_fillercode_fillercodestructure_filler-pr-co_file-70.i[919,932] [2023-12-16 12:32:08,457 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:32:08,469 INFO L206 MainTranslator]: Completed translation [2023-12-16 12:32:08,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:08 WrapperNode [2023-12-16 12:32:08,470 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 12:32:08,471 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 12:32:08,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 12:32:08,471 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 12:32:08,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:08" (1/1) ... [2023-12-16 12:32:08,484 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:08" (1/1) ... [2023-12-16 12:32:08,502 INFO L138 Inliner]: procedures = 27, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 186 [2023-12-16 12:32:08,502 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 12:32:08,502 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 12:32:08,503 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 12:32:08,503 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 12:32:08,510 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:08" (1/1) ... [2023-12-16 12:32:08,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:08" (1/1) ... [2023-12-16 12:32:08,514 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:08" (1/1) ... [2023-12-16 12:32:08,525 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]. [2023-12-16 12:32:08,525 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:08" (1/1) ... [2023-12-16 12:32:08,525 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:08" (1/1) ... [2023-12-16 12:32:08,536 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:08" (1/1) ... [2023-12-16 12:32:08,538 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:08" (1/1) ... [2023-12-16 12:32:08,542 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:08" (1/1) ... [2023-12-16 12:32:08,544 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:08" (1/1) ... [2023-12-16 12:32:08,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 12:32:08,547 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 12:32:08,547 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 12:32:08,547 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 12:32:08,548 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:08" (1/1) ... [2023-12-16 12:32:08,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:32:08,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 12:32:08,584 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) [2023-12-16 12:32:08,603 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 [2023-12-16 12:32:08,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 12:32:08,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 12:32:08,609 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 12:32:08,610 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 12:32:08,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 12:32:08,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 12:32:08,718 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 12:32:08,720 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 12:32:14,215 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 12:32:14,249 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 12:32:14,249 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 12:32:14,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:32:14 BoogieIcfgContainer [2023-12-16 12:32:14,250 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 12:32:14,251 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 12:32:14,251 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 12:32:14,253 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 12:32:14,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:32:08" (1/3) ... [2023-12-16 12:32:14,254 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1429c384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:32:14, skipping insertion in model container [2023-12-16 12:32:14,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:08" (2/3) ... [2023-12-16 12:32:14,254 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1429c384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:32:14, skipping insertion in model container [2023-12-16 12:32:14,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:32:14" (3/3) ... [2023-12-16 12:32:14,255 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-70.i [2023-12-16 12:32:14,266 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 12:32:14,267 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 12:32:14,306 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 12:32:14,310 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;@19bf2cee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 12:32:14,310 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 12:32:14,322 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 47 states have (on average 1.4893617021276595) internal successors, (70), 48 states have internal predecessors, (70), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 12:32:14,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 12:32:14,334 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:32:14,334 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:32:14,335 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:32:14,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:32:14,339 INFO L85 PathProgramCache]: Analyzing trace with hash -2032269290, now seen corresponding path program 1 times [2023-12-16 12:32:14,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:32:14,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1561192665] [2023-12-16 12:32:14,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:32:14,350 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 [2023-12-16 12:32:14,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:32:14,352 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) [2023-12-16 12:32:14,356 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 [2023-12-16 12:32:14,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:32:14,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 12:32:14,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:32:14,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 588 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 12:32:14,870 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:32:14,870 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:32:14,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1561192665] [2023-12-16 12:32:14,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1561192665] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:32:14,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:32:14,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 12:32:14,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70316894] [2023-12-16 12:32:14,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:32:14,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 12:32:14,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:32:14,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 12:32:14,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 12:32:14,910 INFO L87 Difference]: Start difference. First operand has 75 states, 47 states have (on average 1.4893617021276595) internal successors, (70), 48 states have internal predecessors, (70), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 12:32:17,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:32:17,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:32:17,188 INFO L93 Difference]: Finished difference Result 147 states and 263 transitions. [2023-12-16 12:32:17,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 12:32:17,226 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 161 [2023-12-16 12:32:17,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:32:17,231 INFO L225 Difference]: With dead ends: 147 [2023-12-16 12:32:17,231 INFO L226 Difference]: Without dead ends: 73 [2023-12-16 12:32:17,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 12:32:17,237 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 12:32:17,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 108 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 12:32:17,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-12-16 12:32:17,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2023-12-16 12:32:17,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 46 states have (on average 1.326086956521739) internal successors, (61), 46 states have internal predecessors, (61), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 12:32:17,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 111 transitions. [2023-12-16 12:32:17,278 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 111 transitions. Word has length 161 [2023-12-16 12:32:17,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:32:17,278 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 111 transitions. [2023-12-16 12:32:17,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 12:32:17,278 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 111 transitions. [2023-12-16 12:32:17,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 12:32:17,280 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:32:17,281 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:32:17,294 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 [2023-12-16 12:32:17,491 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 [2023-12-16 12:32:17,491 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:32:17,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:32:17,492 INFO L85 PathProgramCache]: Analyzing trace with hash -702718824, now seen corresponding path program 1 times [2023-12-16 12:32:17,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:32:17,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [98884899] [2023-12-16 12:32:17,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:32:17,493 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 [2023-12-16 12:32:17,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:32:17,494 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) [2023-12-16 12:32:17,496 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 [2023-12-16 12:32:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:32:17,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 12:32:17,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:32:20,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 618 proven. 39 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2023-12-16 12:32:20,563 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:32:21,134 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:32:21,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [98884899] [2023-12-16 12:32:21,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [98884899] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 12:32:21,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [459792846] [2023-12-16 12:32:21,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:32:21,135 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 12:32:21,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 12:32:21,178 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 12:32:21,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-16 12:32:21,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:32:21,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 12:32:21,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:32:21,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-12-16 12:32:21,663 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:32:21,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [459792846] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:32:21,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 12:32:21,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-16 12:32:21,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389461761] [2023-12-16 12:32:21,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:32:21,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 12:32:21,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:32:21,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 12:32:21,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-12-16 12:32:21,666 INFO L87 Difference]: Start difference. First operand 73 states and 111 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-16 12:32:23,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:32:23,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:32:23,546 INFO L93 Difference]: Finished difference Result 291 states and 435 transitions. [2023-12-16 12:32:23,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 12:32:23,547 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 161 [2023-12-16 12:32:23,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:32:23,552 INFO L225 Difference]: With dead ends: 291 [2023-12-16 12:32:23,552 INFO L226 Difference]: Without dead ends: 219 [2023-12-16 12:32:23,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-12-16 12:32:23,554 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 213 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-16 12:32:23,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 494 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-16 12:32:23,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-12-16 12:32:23,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 211. [2023-12-16 12:32:23,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 150 states have (on average 1.3733333333333333) internal successors, (206), 152 states have internal predecessors, (206), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2023-12-16 12:32:23,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 318 transitions. [2023-12-16 12:32:23,578 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 318 transitions. Word has length 161 [2023-12-16 12:32:23,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:32:23,579 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 318 transitions. [2023-12-16 12:32:23,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-16 12:32:23,579 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 318 transitions. [2023-12-16 12:32:23,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 12:32:23,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:32:23,581 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:32:23,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-16 12:32:23,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 12:32:23,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:32:23,995 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:32:23,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:32:23,995 INFO L85 PathProgramCache]: Analyzing trace with hash -309691814, now seen corresponding path program 1 times [2023-12-16 12:32:23,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:32:23,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [420529904] [2023-12-16 12:32:23,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:32:23,996 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 [2023-12-16 12:32:23,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:32:23,997 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) [2023-12-16 12:32:23,998 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 [2023-12-16 12:32:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:32:24,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 12:32:24,369 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:32:26,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 618 proven. 39 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2023-12-16 12:32:26,184 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:32:26,667 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:32:26,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [420529904] [2023-12-16 12:32:26,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [420529904] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 12:32:26,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1334967492] [2023-12-16 12:32:26,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:32:26,668 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 12:32:26,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 12:32:26,669 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 12:32:26,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-16 12:32:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:32:27,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 12:32:27,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:32:27,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-12-16 12:32:27,939 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:32:27,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1334967492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:32:27,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 12:32:27,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 9 [2023-12-16 12:32:27,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003388996] [2023-12-16 12:32:27,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:32:27,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 12:32:27,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:32:27,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 12:32:27,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-16 12:32:27,941 INFO L87 Difference]: Start difference. First operand 211 states and 318 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-16 12:32:30,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:32:31,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:32:31,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:32:31,474 INFO L93 Difference]: Finished difference Result 627 states and 944 transitions. [2023-12-16 12:32:31,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 12:32:31,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 161 [2023-12-16 12:32:31,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:32:31,483 INFO L225 Difference]: With dead ends: 627 [2023-12-16 12:32:31,483 INFO L226 Difference]: Without dead ends: 417 [2023-12-16 12:32:31,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-16 12:32:31,487 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 20 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-16 12:32:31,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 184 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-16 12:32:31,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2023-12-16 12:32:31,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 415. [2023-12-16 12:32:31,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 294 states have (on average 1.3401360544217686) internal successors, (394), 298 states have internal predecessors, (394), 112 states have call successors, (112), 8 states have call predecessors, (112), 8 states have return successors, (112), 108 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-16 12:32:31,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 618 transitions. [2023-12-16 12:32:31,530 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 618 transitions. Word has length 161 [2023-12-16 12:32:31,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:32:31,531 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 618 transitions. [2023-12-16 12:32:31,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-16 12:32:31,531 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 618 transitions. [2023-12-16 12:32:31,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 12:32:31,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:32:31,537 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:32:31,552 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 [2023-12-16 12:32:31,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-16 12:32:31,938 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=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 12:32:31,939 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:32:31,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:32:31,939 INFO L85 PathProgramCache]: Analyzing trace with hash -309632232, now seen corresponding path program 1 times [2023-12-16 12:32:31,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:32:31,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246463879] [2023-12-16 12:32:31,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:32:31,940 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 [2023-12-16 12:32:31,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:32:31,941 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) [2023-12-16 12:32:31,943 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 [2023-12-16 12:32:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:32:32,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 12:32:32,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:32:34,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 618 proven. 39 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2023-12-16 12:32:34,095 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:32:34,513 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:32:34,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246463879] [2023-12-16 12:32:34,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [246463879] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 12:32:34,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2119010776] [2023-12-16 12:32:34,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:32:34,514 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 12:32:34,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 12:32:34,515 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 12:32:34,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-16 12:32:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:32:35,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 12:32:35,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:32:35,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-12-16 12:32:35,803 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:32:35,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2119010776] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:32:35,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 12:32:35,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-16 12:32:35,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051048847] [2023-12-16 12:32:35,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:32:35,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 12:32:35,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:32:35,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 12:32:35,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2023-12-16 12:32:35,805 INFO L87 Difference]: Start difference. First operand 415 states and 618 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-16 12:32:39,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:32:41,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:32:43,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:32:46,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:32:47,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:32:47,604 INFO L93 Difference]: Finished difference Result 1012 states and 1500 transitions. [2023-12-16 12:32:47,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 12:32:47,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 161 [2023-12-16 12:32:47,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:32:47,607 INFO L225 Difference]: With dead ends: 1012 [2023-12-16 12:32:47,608 INFO L226 Difference]: Without dead ends: 598 [2023-12-16 12:32:47,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2023-12-16 12:32:47,609 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 232 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2023-12-16 12:32:47,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 370 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2023-12-16 12:32:47,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2023-12-16 12:32:47,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 584. [2023-12-16 12:32:47,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 407 states have (on average 1.3144963144963144) internal successors, (535), 412 states have internal predecessors, (535), 165 states have call successors, (165), 11 states have call predecessors, (165), 11 states have return successors, (165), 160 states have call predecessors, (165), 165 states have call successors, (165) [2023-12-16 12:32:47,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 865 transitions. [2023-12-16 12:32:47,652 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 865 transitions. Word has length 161 [2023-12-16 12:32:47,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:32:47,653 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 865 transitions. [2023-12-16 12:32:47,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-16 12:32:47,653 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 865 transitions. [2023-12-16 12:32:47,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 12:32:47,654 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:32:47,654 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:32:47,667 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 [2023-12-16 12:32:47,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-12-16 12:32:48,065 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=3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 12:32:48,066 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:32:48,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:32:48,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1594664, now seen corresponding path program 1 times [2023-12-16 12:32:48,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:32:48,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1319063982] [2023-12-16 12:32:48,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:32:48,067 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 [2023-12-16 12:32:48,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:32:48,068 INFO L229 MonitoredProcess]: Starting monitored process 9 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) [2023-12-16 12:32:48,069 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 (9)] Waiting until timeout for monitored process [2023-12-16 12:32:48,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:32:48,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 12:32:48,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:32:49,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 618 proven. 39 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2023-12-16 12:32:49,965 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:32:54,381 WARN L854 $PredicateComparison]: unable to prove that (forall ((~var_1_19~0 (_ BitVec 32))) (or (not (bvsge ((_ zero_extend 32) ~var_1_19~0) (_ bv3221225470 64))) (not (bvuge (bvadd (bvneg ((_ zero_extend 16) c_~last_1_var_1_9~0)) ~var_1_19~0 (bvneg c_~last_1_var_1_11~0)) (bvneg ((_ zero_extend 16) c_~var_1_9~0)))))) is different from false [2023-12-16 12:32:54,386 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:32:54,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1319063982] [2023-12-16 12:32:54,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1319063982] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 12:32:54,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1373852476] [2023-12-16 12:32:54,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:32:54,387 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 12:32:54,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 12:32:54,388 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 12:32:54,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-16 12:32:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:32:55,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 12:32:55,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:32:57,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 618 proven. 39 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2023-12-16 12:32:57,130 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:32:57,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1373852476] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 12:32:57,442 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 12:32:57,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2023-12-16 12:32:57,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319503311] [2023-12-16 12:32:57,442 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 12:32:57,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 12:32:57,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:32:57,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 12:32:57,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=106, Unknown=1, NotChecked=20, Total=156 [2023-12-16 12:32:57,444 INFO L87 Difference]: Start difference. First operand 584 states and 865 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 12:33:00,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:33:03,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:33:04,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:33:07,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:33:09,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:33:10,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:33:10,697 INFO L93 Difference]: Finished difference Result 1357 states and 1995 transitions. [2023-12-16 12:33:10,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 12:33:10,705 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 161 [2023-12-16 12:33:10,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:33:10,708 INFO L225 Difference]: With dead ends: 1357 [2023-12-16 12:33:10,708 INFO L226 Difference]: Without dead ends: 774 [2023-12-16 12:33:10,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 495 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=130, Invalid=379, Unknown=1, NotChecked=42, Total=552 [2023-12-16 12:33:10,710 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 233 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2023-12-16 12:33:10,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 521 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2023-12-16 12:33:10,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2023-12-16 12:33:10,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 720. [2023-12-16 12:33:10,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 488 states have (on average 1.2868852459016393) internal successors, (628), 494 states have internal predecessors, (628), 215 states have call successors, (215), 16 states have call predecessors, (215), 16 states have return successors, (215), 209 states have call predecessors, (215), 215 states have call successors, (215) [2023-12-16 12:33:10,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1058 transitions. [2023-12-16 12:33:10,743 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1058 transitions. Word has length 161 [2023-12-16 12:33:10,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:33:10,743 INFO L495 AbstractCegarLoop]: Abstraction has 720 states and 1058 transitions. [2023-12-16 12:33:10,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 12:33:10,744 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1058 transitions. [2023-12-16 12:33:10,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 12:33:10,745 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:33:10,745 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:33:10,757 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 (9)] Forceful destruction successful, exit code 0 [2023-12-16 12:33:10,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-12-16 12:33:11,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 12:33:11,158 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:33:11,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:33:11,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1903364312, now seen corresponding path program 1 times [2023-12-16 12:33:11,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:33:11,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1482967573] [2023-12-16 12:33:11,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:33:11,159 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 [2023-12-16 12:33:11,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:33:11,160 INFO L229 MonitoredProcess]: Starting monitored process 11 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) [2023-12-16 12:33:11,162 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 (11)] Waiting until timeout for monitored process [2023-12-16 12:33:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:33:11,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 12:33:11,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:33:11,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 282 proven. 63 refuted. 0 times theorem prover too weak. 855 trivial. 0 not checked. [2023-12-16 12:33:11,753 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:33:11,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 9 proven. 63 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2023-12-16 12:33:11,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:33:11,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1482967573] [2023-12-16 12:33:11,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1482967573] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 12:33:11,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 12:33:11,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-16 12:33:11,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196329095] [2023-12-16 12:33:11,988 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 12:33:11,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 12:33:11,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:33:11,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 12:33:11,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 12:33:11,989 INFO L87 Difference]: Start difference. First operand 720 states and 1058 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2023-12-16 12:33:14,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:33:14,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:33:14,371 INFO L93 Difference]: Finished difference Result 973 states and 1412 transitions. [2023-12-16 12:33:14,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 12:33:14,403 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 161 [2023-12-16 12:33:14,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:33:14,405 INFO L225 Difference]: With dead ends: 973 [2023-12-16 12:33:14,405 INFO L226 Difference]: Without dead ends: 378 [2023-12-16 12:33:14,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 314 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-16 12:33:14,407 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 51 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-16 12:33:14,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 181 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-16 12:33:14,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2023-12-16 12:33:14,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 308. [2023-12-16 12:33:14,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 194 states have (on average 1.2010309278350515) internal successors, (233), 194 states have internal predecessors, (233), 100 states have call successors, (100), 13 states have call predecessors, (100), 13 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-16 12:33:14,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 433 transitions. [2023-12-16 12:33:14,443 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 433 transitions. Word has length 161 [2023-12-16 12:33:14,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:33:14,444 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 433 transitions. [2023-12-16 12:33:14,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2023-12-16 12:33:14,444 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 433 transitions. [2023-12-16 12:33:14,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-16 12:33:14,445 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:33:14,445 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:33:14,460 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 (11)] Forceful destruction successful, exit code 0 [2023-12-16 12:33:14,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /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 [2023-12-16 12:33:14,661 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:33:14,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:33:14,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1412684916, now seen corresponding path program 1 times [2023-12-16 12:33:14,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:33:14,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [214925104] [2023-12-16 12:33:14,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:33:14,665 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 [2023-12-16 12:33:14,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:33:14,665 INFO L229 MonitoredProcess]: Starting monitored process 12 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) [2023-12-16 12:33:14,692 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 (12)] Waiting until timeout for monitored process [2023-12-16 12:33:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:33:15,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 12:33:15,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:33:15,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-12-16 12:33:15,340 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:33:15,340 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:33:15,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [214925104] [2023-12-16 12:33:15,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [214925104] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:33:15,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:33:15,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 12:33:15,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247200091] [2023-12-16 12:33:15,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:33:15,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 12:33:15,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:33:15,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 12:33:15,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 12:33:15,344 INFO L87 Difference]: Start difference. First operand 308 states and 433 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-16 12:33:17,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:33:19,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:33:21,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:33:21,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:33:21,024 INFO L93 Difference]: Finished difference Result 492 states and 692 transitions. [2023-12-16 12:33:21,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 12:33:21,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 162 [2023-12-16 12:33:21,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:33:21,059 INFO L225 Difference]: With dead ends: 492 [2023-12-16 12:33:21,059 INFO L226 Difference]: Without dead ends: 334 [2023-12-16 12:33:21,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 12:33:21,060 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 93 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-12-16 12:33:21,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 329 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-12-16 12:33:21,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2023-12-16 12:33:21,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 308. [2023-12-16 12:33:21,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 194 states have (on average 1.1855670103092784) internal successors, (230), 194 states have internal predecessors, (230), 100 states have call successors, (100), 13 states have call predecessors, (100), 13 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-16 12:33:21,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 430 transitions. [2023-12-16 12:33:21,077 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 430 transitions. Word has length 162 [2023-12-16 12:33:21,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:33:21,079 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 430 transitions. [2023-12-16 12:33:21,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-16 12:33:21,079 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 430 transitions. [2023-12-16 12:33:21,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-16 12:33:21,080 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:33:21,080 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:33:21,096 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 (12)] Forceful destruction successful, exit code 0 [2023-12-16 12:33:21,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /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 [2023-12-16 12:33:21,294 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:33:21,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:33:21,294 INFO L85 PathProgramCache]: Analyzing trace with hash 141080351, now seen corresponding path program 1 times [2023-12-16 12:33:21,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:33:21,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [931806724] [2023-12-16 12:33:21,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:33:21,295 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 [2023-12-16 12:33:21,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:33:21,296 INFO L229 MonitoredProcess]: Starting monitored process 13 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) [2023-12-16 12:33:21,296 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 (13)] Waiting until timeout for monitored process [2023-12-16 12:33:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:33:21,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-16 12:33:21,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 12:33:23,486 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 12:33:23,499 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 (13)] Forceful destruction successful, exit code 0 [2023-12-16 12:33:23,499 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 [2023-12-16 12:33:23,499 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 (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 12:33:23,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /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 [2023-12-16 12:33:23,686 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 163 with TraceHistMax 25,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 9 known predicates. [2023-12-16 12:33:23,690 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:33:23,691 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 12:33:23,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:33:23 BoogieIcfgContainer [2023-12-16 12:33:23,694 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 12:33:23,694 INFO L158 Benchmark]: Toolchain (without parser) took 75468.03ms. Allocated memory was 183.5MB in the beginning and 263.2MB in the end (delta: 79.7MB). Free memory was 128.7MB in the beginning and 191.2MB in the end (delta: -62.4MB). Peak memory consumption was 17.9MB. Max. memory is 8.0GB. [2023-12-16 12:33:23,694 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 183.5MB. Free memory is still 134.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 12:33:23,694 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.06ms. Allocated memory is still 183.5MB. Free memory was 128.4MB in the beginning and 112.7MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 12:33:23,695 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.37ms. Allocated memory is still 183.5MB. Free memory was 112.7MB in the beginning and 110.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 12:33:23,695 INFO L158 Benchmark]: Boogie Preprocessor took 44.15ms. Allocated memory is still 183.5MB. Free memory was 110.0MB in the beginning and 106.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 12:33:23,695 INFO L158 Benchmark]: RCFGBuilder took 5702.74ms. Allocated memory is still 183.5MB. Free memory was 106.3MB in the beginning and 129.4MB in the end (delta: -23.1MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. [2023-12-16 12:33:23,695 INFO L158 Benchmark]: TraceAbstraction took 69442.55ms. Allocated memory was 183.5MB in the beginning and 263.2MB in the end (delta: 79.7MB). Free memory was 128.4MB in the beginning and 191.2MB in the end (delta: -62.8MB). Peak memory consumption was 17.4MB. Max. memory is 8.0GB. [2023-12-16 12:33:23,697 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 183.5MB. Free memory is still 134.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 243.06ms. Allocated memory is still 183.5MB. Free memory was 128.4MB in the beginning and 112.7MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.37ms. Allocated memory is still 183.5MB. Free memory was 112.7MB in the beginning and 110.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.15ms. Allocated memory is still 183.5MB. Free memory was 110.0MB in the beginning and 106.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 5702.74ms. Allocated memory is still 183.5MB. Free memory was 106.3MB in the beginning and 129.4MB in the end (delta: -23.1MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. * TraceAbstraction took 69442.55ms. Allocated memory was 183.5MB in the beginning and 263.2MB in the end (delta: 79.7MB). Free memory was 128.4MB in the beginning and 191.2MB in the end (delta: -62.8MB). Peak memory consumption was 17.4MB. 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 163 with TraceHistMax 25,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 9 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 69.4s, OverallIterations: 8, TraceHistogramMax: 25, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 41.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 845 SdHoareTripleChecker+Valid, 39.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 842 mSDsluCounter, 2187 SdHoareTripleChecker+Invalid, 39.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1269 mSDsCounter, 163 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1224 IncrementalHoareTripleChecker+Invalid, 1387 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 163 mSolverCounterUnsat, 918 mSDtfsCounter, 1224 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2405 GetRequests, 2329 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=720occurred in iteration=5, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 174 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 4.8s SatisfiabilityAnalysisTime, 18.0s InterpolantComputationTime, 1772 NumberOfCodeBlocks, 1772 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1921 ConstructedInterpolants, 0 QuantifiedInterpolants, 11540 SizeOfPredicates, 48 NumberOfNonLiveVariables, 3015 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 14079/14400 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