/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-ps-ci_file-78.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 14:39:31,090 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 14:39:31,151 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 14:39:31,154 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 14:39:31,155 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 14:39:31,187 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 14:39:31,187 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 14:39:31,188 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 14:39:31,188 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 14:39:31,192 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 14:39:31,193 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 14:39:31,193 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 14:39:31,193 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 14:39:31,194 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 14:39:31,194 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 14:39:31,194 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 14:39:31,195 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 14:39:31,195 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 14:39:31,195 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 14:39:31,195 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 14:39:31,195 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 14:39:31,196 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 14:39:31,196 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 14:39:31,196 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 14:39:31,196 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 14:39:31,197 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 14:39:31,197 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 14:39:31,197 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 14:39:31,197 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 14:39:31,197 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 14:39:31,198 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 14:39:31,198 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 14:39:31,198 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 14:39:31,198 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 14:39:31,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 14:39:31,199 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 14:39:31,199 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 14:39:31,199 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 14:39:31,199 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 14:39:31,199 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 14:39:31,199 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 14:39:31,200 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 14:39:31,200 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 14:39:31,200 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 14:39:31,200 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 14:39:31,200 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 14:39:31,201 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 14:39:31,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 14:39:31,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 14:39:31,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 14:39:31,396 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 14:39:31,396 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 14:39:31,398 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-78.i [2023-12-23 14:39:32,424 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 14:39:32,650 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 14:39:32,651 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-78.i [2023-12-23 14:39:32,657 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/444a7c507/55b5c7d2b51b43b3b622fe5b2c56af27/FLAGd042f34a1 [2023-12-23 14:39:32,667 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/444a7c507/55b5c7d2b51b43b3b622fe5b2c56af27 [2023-12-23 14:39:32,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 14:39:32,670 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 14:39:32,670 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 14:39:32,670 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 14:39:32,674 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 14:39:32,674 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:39:32" (1/1) ... [2023-12-23 14:39:32,675 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7196005b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:39:32, skipping insertion in model container [2023-12-23 14:39:32,675 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:39:32" (1/1) ... [2023-12-23 14:39:32,710 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 14:39:32,824 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-ps-ci_file-78.i[919,932] [2023-12-23 14:39:32,882 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 14:39:32,893 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 14:39:32,902 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-ps-ci_file-78.i[919,932] [2023-12-23 14:39:32,953 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 14:39:32,966 INFO L206 MainTranslator]: Completed translation [2023-12-23 14:39:32,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:39:32 WrapperNode [2023-12-23 14:39:32,966 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 14:39:32,967 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 14:39:32,967 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 14:39:32,967 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 14:39:32,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:39:32" (1/1) ... [2023-12-23 14:39:32,983 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:39:32" (1/1) ... [2023-12-23 14:39:33,006 INFO L138 Inliner]: procedures = 27, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 198 [2023-12-23 14:39:33,006 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 14:39:33,007 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 14:39:33,007 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 14:39:33,007 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 14:39:33,042 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:39:32" (1/1) ... [2023-12-23 14:39:33,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:39:32" (1/1) ... [2023-12-23 14:39:33,056 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:39:32" (1/1) ... [2023-12-23 14:39:33,067 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]. [2023-12-23 14:39:33,067 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:39:32" (1/1) ... [2023-12-23 14:39:33,068 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:39:32" (1/1) ... [2023-12-23 14:39:33,076 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:39:32" (1/1) ... [2023-12-23 14:39:33,078 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:39:32" (1/1) ... [2023-12-23 14:39:33,080 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:39:32" (1/1) ... [2023-12-23 14:39:33,081 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:39:32" (1/1) ... [2023-12-23 14:39:33,089 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 14:39:33,090 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 14:39:33,090 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 14:39:33,090 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 14:39:33,090 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:39:32" (1/1) ... [2023-12-23 14:39:33,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 14:39:33,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 14:39:33,120 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) [2023-12-23 14:39:33,151 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 [2023-12-23 14:39:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 14:39:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 14:39:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 14:39:33,156 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 14:39:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 14:39:33,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 14:39:33,253 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 14:39:33,254 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 14:39:39,112 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 14:39:39,152 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 14:39:39,153 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 14:39:39,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:39:39 BoogieIcfgContainer [2023-12-23 14:39:39,153 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 14:39:39,154 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 14:39:39,155 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 14:39:39,157 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 14:39:39,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 02:39:32" (1/3) ... [2023-12-23 14:39:39,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3748e28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:39:39, skipping insertion in model container [2023-12-23 14:39:39,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:39:32" (2/3) ... [2023-12-23 14:39:39,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3748e28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:39:39, skipping insertion in model container [2023-12-23 14:39:39,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:39:39" (3/3) ... [2023-12-23 14:39:39,158 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-78.i [2023-12-23 14:39:39,170 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 14:39:39,170 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 14:39:39,200 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 14:39:39,204 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;@4e925a83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 14:39:39,204 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 14:39:39,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 48 states have (on average 1.4375) internal successors, (69), 49 states have internal predecessors, (69), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-23 14:39:39,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-12-23 14:39:39,217 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 14:39:39,218 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 14:39:39,218 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 14:39:39,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 14:39:39,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1929947893, now seen corresponding path program 1 times [2023-12-23 14:39:39,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 14:39:39,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280187858] [2023-12-23 14:39:39,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 14:39:39,233 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 [2023-12-23 14:39:39,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 14:39:39,235 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) [2023-12-23 14:39:39,263 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 [2023-12-23 14:39:39,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 14:39:39,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 14:39:39,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 14:39:39,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 818 proven. 0 refuted. 0 times theorem prover too weak. 922 trivial. 0 not checked. [2023-12-23 14:39:39,745 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 14:39:39,746 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 14:39:39,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280187858] [2023-12-23 14:39:39,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280187858] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 14:39:39,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 14:39:39,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 14:39:39,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093840784] [2023-12-23 14:39:39,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 14:39:39,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 14:39:39,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 14:39:39,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 14:39:39,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 14:39:39,776 INFO L87 Difference]: Start difference. First operand has 81 states, 48 states have (on average 1.4375) internal successors, (69), 49 states have internal predecessors, (69), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-23 14:39:43,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 14:39:43,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 14:39:43,922 INFO L93 Difference]: Finished difference Result 159 states and 286 transitions. [2023-12-23 14:39:43,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 14:39:43,962 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 188 [2023-12-23 14:39:43,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 14:39:43,967 INFO L225 Difference]: With dead ends: 159 [2023-12-23 14:39:43,967 INFO L226 Difference]: Without dead ends: 79 [2023-12-23 14:39:43,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 14:39:43,971 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-23 14:39:43,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-12-23 14:39:43,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-12-23 14:39:43,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2023-12-23 14:39:44,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 47 states have (on average 1.3617021276595744) internal successors, (64), 47 states have internal predecessors, (64), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-23 14:39:44,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 124 transitions. [2023-12-23 14:39:44,003 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 124 transitions. Word has length 188 [2023-12-23 14:39:44,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 14:39:44,003 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 124 transitions. [2023-12-23 14:39:44,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-23 14:39:44,005 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 124 transitions. [2023-12-23 14:39:44,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-12-23 14:39:44,008 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 14:39:44,012 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 14:39:44,024 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 [2023-12-23 14:39:44,224 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 [2023-12-23 14:39:44,225 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 14:39:44,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 14:39:44,227 INFO L85 PathProgramCache]: Analyzing trace with hash -469236865, now seen corresponding path program 1 times [2023-12-23 14:39:44,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 14:39:44,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1905668045] [2023-12-23 14:39:44,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 14:39:44,228 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 [2023-12-23 14:39:44,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 14:39:44,237 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) [2023-12-23 14:39:44,238 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 [2023-12-23 14:39:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 14:39:44,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-23 14:39:44,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 14:39:45,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 870 proven. 60 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2023-12-23 14:39:45,448 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 14:39:45,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 54 proven. 33 refuted. 0 times theorem prover too weak. 1653 trivial. 0 not checked. [2023-12-23 14:39:45,807 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 14:39:45,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1905668045] [2023-12-23 14:39:45,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1905668045] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 14:39:45,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 14:39:45,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2023-12-23 14:39:45,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718397939] [2023-12-23 14:39:45,807 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 14:39:45,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-23 14:39:45,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 14:39:45,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-23 14:39:45,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-23 14:39:45,810 INFO L87 Difference]: Start difference. First operand 79 states and 124 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 4 states have call successors, (41), 3 states have call predecessors, (41), 5 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) [2023-12-23 14:39:50,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.96s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 14:39:50,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 14:39:50,730 INFO L93 Difference]: Finished difference Result 167 states and 255 transitions. [2023-12-23 14:39:50,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-23 14:39:50,775 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 4 states have call successors, (41), 3 states have call predecessors, (41), 5 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) Word has length 188 [2023-12-23 14:39:50,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 14:39:50,777 INFO L225 Difference]: With dead ends: 167 [2023-12-23 14:39:50,777 INFO L226 Difference]: Without dead ends: 89 [2023-12-23 14:39:50,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=148, Unknown=0, NotChecked=0, Total=240 [2023-12-23 14:39:50,779 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 125 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-12-23 14:39:50,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 226 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-12-23 14:39:50,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-12-23 14:39:50,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2023-12-23 14:39:50,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 53 states have internal predecessors, (67), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-23 14:39:50,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 127 transitions. [2023-12-23 14:39:50,790 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 127 transitions. Word has length 188 [2023-12-23 14:39:50,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 14:39:50,791 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 127 transitions. [2023-12-23 14:39:50,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 4 states have call successors, (41), 3 states have call predecessors, (41), 5 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) [2023-12-23 14:39:50,791 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 127 transitions. [2023-12-23 14:39:50,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-12-23 14:39:50,793 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 14:39:50,793 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 14:39:50,828 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 [2023-12-23 14:39:51,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 14:39:51,006 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 14:39:51,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 14:39:51,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1466992381, now seen corresponding path program 1 times [2023-12-23 14:39:51,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 14:39:51,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [443839936] [2023-12-23 14:39:51,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 14:39:51,008 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 [2023-12-23 14:39:51,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 14:39:51,009 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 14:39:51,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-23 14:39:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 14:39:51,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 14:39:51,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 14:39:53,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-12-23 14:39:53,191 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 14:39:53,191 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 14:39:53,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [443839936] [2023-12-23 14:39:53,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [443839936] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 14:39:53,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 14:39:53,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 14:39:53,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587225934] [2023-12-23 14:39:53,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 14:39:53,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 14:39:53,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 14:39:53,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 14:39:53,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-23 14:39:53,193 INFO L87 Difference]: Start difference. First operand 87 states and 127 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-23 14:39:57,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 14:40:00,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.92s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 14:40:04,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.57s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 14:40:08,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 14:40:08,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 14:40:08,633 INFO L93 Difference]: Finished difference Result 271 states and 395 transitions. [2023-12-23 14:40:08,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 14:40:08,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 190 [2023-12-23 14:40:08,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 14:40:08,680 INFO L225 Difference]: With dead ends: 271 [2023-12-23 14:40:08,680 INFO L226 Difference]: Without dead ends: 185 [2023-12-23 14:40:08,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-23 14:40:08,682 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 101 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2023-12-23 14:40:08,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 392 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 109 Invalid, 2 Unknown, 0 Unchecked, 15.3s Time] [2023-12-23 14:40:08,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-12-23 14:40:08,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 171. [2023-12-23 14:40:08,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 104 states have (on average 1.2596153846153846) internal successors, (131), 104 states have internal predecessors, (131), 60 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-23 14:40:08,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 251 transitions. [2023-12-23 14:40:08,707 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 251 transitions. Word has length 190 [2023-12-23 14:40:08,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 14:40:08,707 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 251 transitions. [2023-12-23 14:40:08,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-23 14:40:08,707 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 251 transitions. [2023-12-23 14:40:08,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-12-23 14:40:08,716 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 14:40:08,717 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 14:40:08,728 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 (4)] Forceful destruction successful, exit code 0 [2023-12-23 14:40:08,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 14:40:08,927 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 14:40:08,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 14:40:08,928 INFO L85 PathProgramCache]: Analyzing trace with hash -765927803, now seen corresponding path program 1 times [2023-12-23 14:40:08,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 14:40:08,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1743714203] [2023-12-23 14:40:08,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 14:40:08,929 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 [2023-12-23 14:40:08,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 14:40:08,932 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) [2023-12-23 14:40:08,935 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 [2023-12-23 14:40:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 14:40:09,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 14:40:09,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 14:40:09,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-12-23 14:40:09,303 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 14:40:09,303 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 14:40:09,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1743714203] [2023-12-23 14:40:09,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1743714203] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 14:40:09,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 14:40:09,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 14:40:09,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030322175] [2023-12-23 14:40:09,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 14:40:09,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 14:40:09,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 14:40:09,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 14:40:09,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 14:40:09,307 INFO L87 Difference]: Start difference. First operand 171 states and 251 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-23 14:40:13,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 14:40:14,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 14:40:14,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 14:40:14,907 INFO L93 Difference]: Finished difference Result 257 states and 377 transitions. [2023-12-23 14:40:14,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 14:40:14,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 190 [2023-12-23 14:40:14,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 14:40:14,949 INFO L225 Difference]: With dead ends: 257 [2023-12-23 14:40:14,949 INFO L226 Difference]: Without dead ends: 171 [2023-12-23 14:40:14,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 14:40:14,950 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 13 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-23 14:40:14,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 218 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2023-12-23 14:40:14,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-12-23 14:40:14,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2023-12-23 14:40:14,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 104 states have (on average 1.2403846153846154) internal successors, (129), 104 states have internal predecessors, (129), 60 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-23 14:40:14,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 249 transitions. [2023-12-23 14:40:14,982 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 249 transitions. Word has length 190 [2023-12-23 14:40:14,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 14:40:14,983 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 249 transitions. [2023-12-23 14:40:14,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-23 14:40:14,983 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 249 transitions. [2023-12-23 14:40:14,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-12-23 14:40:14,984 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 14:40:14,984 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 14:40:15,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-23 14:40:15,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 14:40:15,197 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 14:40:15,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 14:40:15,198 INFO L85 PathProgramCache]: Analyzing trace with hash -154156374, now seen corresponding path program 1 times [2023-12-23 14:40:15,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 14:40:15,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1671653679] [2023-12-23 14:40:15,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 14:40:15,199 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 [2023-12-23 14:40:15,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 14:40:15,204 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 14:40:15,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-23 14:40:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 14:40:15,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 14:40:15,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 14:40:17,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-12-23 14:40:17,227 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 14:40:17,227 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 14:40:17,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1671653679] [2023-12-23 14:40:17,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1671653679] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 14:40:17,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 14:40:17,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-23 14:40:17,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707833213] [2023-12-23 14:40:17,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 14:40:17,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-23 14:40:17,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 14:40:17,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-23 14:40:17,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-23 14:40:17,229 INFO L87 Difference]: Start difference. First operand 171 states and 249 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-23 14:40:21,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.81s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 14:40:24,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 14:40:28,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 14:40:30,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 14:40:33,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 14:40:35,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 14:40:39,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 14:40:42,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 14:40:42,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 14:40:42,306 INFO L93 Difference]: Finished difference Result 447 states and 647 transitions. [2023-12-23 14:40:42,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-23 14:40:42,353 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 191 [2023-12-23 14:40:42,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 14:40:42,355 INFO L225 Difference]: With dead ends: 447 [2023-12-23 14:40:42,355 INFO L226 Difference]: Without dead ends: 361 [2023-12-23 14:40:42,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-12-23 14:40:42,363 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 214 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.9s IncrementalHoareTripleChecker+Time [2023-12-23 14:40:42,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 437 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 388 Invalid, 2 Unknown, 0 Unchecked, 24.9s Time] [2023-12-23 14:40:42,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-12-23 14:40:42,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 330. [2023-12-23 14:40:42,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 197 states have (on average 1.2233502538071066) internal successors, (241), 197 states have internal predecessors, (241), 120 states have call successors, (120), 12 states have call predecessors, (120), 12 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-23 14:40:42,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 481 transitions. [2023-12-23 14:40:42,450 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 481 transitions. Word has length 191 [2023-12-23 14:40:42,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 14:40:42,451 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 481 transitions. [2023-12-23 14:40:42,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-23 14:40:42,451 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 481 transitions. [2023-12-23 14:40:42,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-12-23 14:40:42,452 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 14:40:42,452 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 14:40:42,465 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 (6)] Forceful destruction successful, exit code 0 [2023-12-23 14:40:42,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 14:40:42,667 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 14:40:42,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 14:40:42,668 INFO L85 PathProgramCache]: Analyzing trace with hash -152309332, now seen corresponding path program 1 times [2023-12-23 14:40:42,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 14:40:42,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496757484] [2023-12-23 14:40:42,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 14:40:42,668 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 [2023-12-23 14:40:42,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 14:40:42,670 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) [2023-12-23 14:40:42,672 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 [2023-12-23 14:40:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 14:40:44,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-23 14:40:44,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 14:40:45,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 593 proven. 69 refuted. 0 times theorem prover too weak. 1078 trivial. 0 not checked. [2023-12-23 14:40:45,820 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 14:40:49,888 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 14:40:49,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496757484] [2023-12-23 14:40:49,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1496757484] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 14:40:49,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [115220227] [2023-12-23 14:40:49,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 14:40:49,889 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 14:40:49,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 14:40:49,890 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) [2023-12-23 14:40:49,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-23 14:40:50,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 14:40:50,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 14:40:50,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 14:40:52,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-12-23 14:40:52,192 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 14:40:52,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [115220227] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 14:40:52,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 14:40:52,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2023-12-23 14:40:52,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639484431] [2023-12-23 14:40:52,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 14:40:52,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 14:40:52,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 14:40:52,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 14:40:52,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-23 14:40:52,194 INFO L87 Difference]: Start difference. First operand 330 states and 481 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-23 14:40:54,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 14:40:58,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 14:41:00,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 14:41:03,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 14:41:08,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 14:41:08,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 14:41:08,158 INFO L93 Difference]: Finished difference Result 626 states and 903 transitions. [2023-12-23 14:41:08,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 14:41:08,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 191 [2023-12-23 14:41:08,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 14:41:08,163 INFO L225 Difference]: With dead ends: 626 [2023-12-23 14:41:08,163 INFO L226 Difference]: Without dead ends: 456 [2023-12-23 14:41:08,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-12-23 14:41:08,166 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 49 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2023-12-23 14:41:08,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 308 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 181 Invalid, 2 Unknown, 0 Unchecked, 15.9s Time] [2023-12-23 14:41:08,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2023-12-23 14:41:08,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 450. [2023-12-23 14:41:08,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 277 states have (on average 1.2310469314079422) internal successors, (341), 279 states have internal predecessors, (341), 154 states have call successors, (154), 18 states have call predecessors, (154), 18 states have return successors, (154), 152 states have call predecessors, (154), 154 states have call successors, (154) [2023-12-23 14:41:08,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 649 transitions. [2023-12-23 14:41:08,222 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 649 transitions. Word has length 191 [2023-12-23 14:41:08,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 14:41:08,224 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 649 transitions. [2023-12-23 14:41:08,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-23 14:41:08,224 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 649 transitions. [2023-12-23 14:41:08,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-12-23 14:41:08,225 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 14:41:08,225 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 14:41:08,240 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 (7)] Ended with exit code 0 [2023-12-23 14:41:08,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-12-23 14:41:08,648 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 [2023-12-23 14:41:08,649 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 14:41:08,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 14:41:08,650 INFO L85 PathProgramCache]: Analyzing trace with hash 525901996, now seen corresponding path program 1 times [2023-12-23 14:41:08,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 14:41:08,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849808876] [2023-12-23 14:41:08,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 14:41:08,650 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 [2023-12-23 14:41:08,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 14:41:08,651 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) [2023-12-23 14:41:08,653 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 [2023-12-23 14:41:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 14:41:09,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 14:41:09,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 14:41:10,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-12-23 14:41:10,297 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 14:41:10,297 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 14:41:10,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849808876] [2023-12-23 14:41:10,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [849808876] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 14:41:10,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 14:41:10,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 14:41:10,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355764030] [2023-12-23 14:41:10,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 14:41:10,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 14:41:10,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 14:41:10,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 14:41:10,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-23 14:41:10,299 INFO L87 Difference]: Start difference. First operand 450 states and 649 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-23 14:41:13,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 14:41:17,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 14:41:20,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 14:41:23,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 14:41:23,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 14:41:23,598 INFO L93 Difference]: Finished difference Result 638 states and 920 transitions. [2023-12-23 14:41:23,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 14:41:23,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 191 [2023-12-23 14:41:23,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 14:41:23,607 INFO L225 Difference]: With dead ends: 638 [2023-12-23 14:41:23,607 INFO L226 Difference]: Without dead ends: 452 [2023-12-23 14:41:23,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-23 14:41:23,608 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 22 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2023-12-23 14:41:23,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 268 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 1 Unknown, 0 Unchecked, 13.3s Time] [2023-12-23 14:41:23,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2023-12-23 14:41:23,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 450. [2023-12-23 14:41:23,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 277 states have (on average 1.227436823104693) internal successors, (340), 279 states have internal predecessors, (340), 154 states have call successors, (154), 18 states have call predecessors, (154), 18 states have return successors, (154), 152 states have call predecessors, (154), 154 states have call successors, (154) [2023-12-23 14:41:23,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 648 transitions. [2023-12-23 14:41:23,655 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 648 transitions. Word has length 191 [2023-12-23 14:41:23,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 14:41:23,655 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 648 transitions. [2023-12-23 14:41:23,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-23 14:41:23,656 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 648 transitions. [2023-12-23 14:41:23,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-12-23 14:41:23,658 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 14:41:23,658 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 14:41:23,670 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 (9)] Ended with exit code 0 [2023-12-23 14:41:23,870 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 [2023-12-23 14:41:23,870 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 14:41:23,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 14:41:23,873 INFO L85 PathProgramCache]: Analyzing trace with hash 527749038, now seen corresponding path program 1 times [2023-12-23 14:41:23,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 14:41:23,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1453024665] [2023-12-23 14:41:23,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 14:41:23,874 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 [2023-12-23 14:41:23,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 14:41:23,875 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 14:41:23,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-23 14:41:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 14:41:25,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 54 conjunts are in the unsatisfiable core [2023-12-23 14:41:25,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 14:42:47,939 WARN L293 SmtUtils]: Spent 7.70s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:42:54,216 WARN L293 SmtUtils]: Spent 6.28s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:43:00,634 WARN L293 SmtUtils]: Spent 6.42s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:43:07,676 WARN L293 SmtUtils]: Spent 7.04s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:43:18,545 WARN L293 SmtUtils]: Spent 5.87s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:43:24,329 WARN L293 SmtUtils]: Spent 5.78s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:43:33,150 WARN L293 SmtUtils]: Spent 6.21s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:43:41,248 WARN L293 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:43:49,882 WARN L293 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:43:56,041 WARN L293 SmtUtils]: Spent 6.16s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:44:02,305 WARN L293 SmtUtils]: Spent 6.26s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:44:10,417 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:44:18,577 WARN L293 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:44:26,326 WARN L293 SmtUtils]: Spent 7.75s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:44:34,452 WARN L293 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:44:42,592 WARN L293 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:44:50,728 WARN L293 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:44:58,771 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:45:06,917 WARN L293 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:45:15,072 WARN L293 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:45:21,797 WARN L293 SmtUtils]: Spent 6.72s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:45:29,905 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:45:36,014 WARN L293 SmtUtils]: Spent 6.11s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:45:44,198 WARN L293 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:45:52,310 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:46:00,466 WARN L293 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:46:08,614 WARN L293 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:46:16,730 WARN L293 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:46:24,864 WARN L293 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:46:31,982 WARN L293 SmtUtils]: Spent 7.12s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:51:25,991 WARN L293 SmtUtils]: Spent 3.84m on a formula simplification that was a NOOP. DAG size: 88 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 14:51:34,154 WARN L293 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:51:42,249 WARN L293 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:51:50,373 WARN L293 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:51:58,345 WARN L293 SmtUtils]: Spent 7.97s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:52:10,374 WARN L293 SmtUtils]: Spent 7.81s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:52:16,394 WARN L293 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:52:24,562 WARN L293 SmtUtils]: Spent 8.17s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:52:31,964 WARN L293 SmtUtils]: Spent 7.40s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:52:38,418 WARN L293 SmtUtils]: Spent 6.45s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:52:46,575 WARN L293 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:52:52,771 WARN L293 SmtUtils]: Spent 6.19s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:53:00,379 WARN L293 SmtUtils]: Spent 7.61s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:53:08,501 WARN L293 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:53:14,069 WARN L293 SmtUtils]: Spent 5.57s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:53:22,268 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:53:30,122 WARN L293 SmtUtils]: Spent 7.85s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:53:38,331 WARN L293 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:53:46,478 WARN L293 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:53:53,305 WARN L293 SmtUtils]: Spent 6.83s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:53:59,680 WARN L293 SmtUtils]: Spent 6.37s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:54:07,015 WARN L293 SmtUtils]: Spent 7.33s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 14:54:15,159 WARN L293 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-23 14:54:17,533 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 [2023-12-23 14:54:17,545 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 14:54:18,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-23 14:54:18,734 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-23 14:54:18,777 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 14:54:18,777 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 192 with TraceHistMax 30,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-23 14:54:18,780 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 14:54:18,782 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 14:54:18,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 02:54:18 BoogieIcfgContainer [2023-12-23 14:54:18,783 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 14:54:18,783 INFO L158 Benchmark]: Toolchain (without parser) took 886114.02ms. Allocated memory is still 243.3MB. Free memory was 201.4MB in the beginning and 102.8MB in the end (delta: 98.6MB). Peak memory consumption was 99.1MB. Max. memory is 8.0GB. [2023-12-23 14:54:18,784 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 202.4MB. Free memory is still 149.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 14:54:18,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-23 14:54:18,786 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.19ms. Allocated memory is still 243.3MB. Free memory was 200.9MB in the beginning and 184.1MB in the end (delta: 16.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-23 14:54:18,787 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.45ms. Allocated memory is still 243.3MB. Free memory was 184.1MB in the beginning and 181.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-23 14:54:18,787 INFO L158 Benchmark]: Boogie Preprocessor took 82.17ms. Allocated memory is still 243.3MB. Free memory was 181.0MB in the beginning and 176.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-23 14:54:18,787 INFO L158 Benchmark]: RCFGBuilder took 6063.47ms. Allocated memory is still 243.3MB. Free memory was 176.8MB in the beginning and 147.9MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2023-12-23 14:54:18,787 INFO L158 Benchmark]: TraceAbstraction took 879628.68ms. Allocated memory is still 243.3MB. Free memory was 146.9MB in the beginning and 102.8MB in the end (delta: 44.1MB). Peak memory consumption was 44.6MB. Max. memory is 8.0GB. [2023-12-23 14:54:18,788 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 202.4MB. Free memory is still 149.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 296.19ms. Allocated memory is still 243.3MB. Free memory was 200.9MB in the beginning and 184.1MB in the end (delta: 16.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.45ms. Allocated memory is still 243.3MB. Free memory was 184.1MB in the beginning and 181.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 82.17ms. Allocated memory is still 243.3MB. Free memory was 181.0MB in the beginning and 176.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 6063.47ms. Allocated memory is still 243.3MB. Free memory was 176.8MB in the beginning and 147.9MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 879628.68ms. Allocated memory is still 243.3MB. Free memory was 146.9MB in the beginning and 102.8MB in the end (delta: 44.1MB). Peak memory consumption was 44.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 192 with TraceHistMax 30,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 879.6s, OverallIterations: 8, TraceHistogramMax: 30, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 84.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 mSolverCounterUnknown, 542 SdHoareTripleChecker+Valid, 83.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 524 mSDsluCounter, 1970 SdHoareTripleChecker+Invalid, 82.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1100 mSDsCounter, 170 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1033 IncrementalHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 170 mSolverCounterUnsat, 870 mSDtfsCounter, 1033 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1738 GetRequests, 1693 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=450occurred in iteration=6, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 55 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 4.1s SatisfiabilityAnalysisTime, 13.2s InterpolantComputationTime, 1520 NumberOfCodeBlocks, 1520 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1699 ConstructedInterpolants, 1 QuantifiedInterpolants, 7143 SizeOfPredicates, 31 NumberOfNonLiveVariables, 2534 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 15498/15660 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