/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/loop-invgen/string_concat-noarr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 22:48:00,301 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 22:48:00,393 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 22:48:00,398 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 22:48:00,398 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 22:48:00,426 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 22:48:00,426 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 22:48:00,427 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 22:48:00,427 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 22:48:00,431 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 22:48:00,431 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 22:48:00,431 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 22:48:00,432 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 22:48:00,433 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 22:48:00,433 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 22:48:00,433 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 22:48:00,434 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 22:48:00,434 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 22:48:00,435 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 22:48:00,435 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 22:48:00,435 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 22:48:00,436 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 22:48:00,436 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 22:48:00,436 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 22:48:00,436 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 22:48:00,436 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 22:48:00,437 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 22:48:00,437 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 22:48:00,437 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 22:48:00,437 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 22:48:00,438 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 22:48:00,438 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 22:48:00,438 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 22:48:00,438 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 22:48:00,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 22:48:00,439 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 22:48:00,439 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 22:48:00,439 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 22:48:00,439 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 22:48:00,439 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 22:48:00,439 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 22:48:00,440 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 22:48:00,440 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 22:48:00,440 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 22:48:00,440 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 22:48:00,440 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 22:48:00,441 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 22:48:00,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 22:48:00,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 22:48:00,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 22:48:00,691 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 22:48:00,692 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 22:48:00,694 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/string_concat-noarr.i [2023-12-24 22:48:01,775 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 22:48:01,935 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 22:48:01,935 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/string_concat-noarr.i [2023-12-24 22:48:01,941 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc143789c/799d54ed5d35486b8631433382ae2e95/FLAG71c7b1226 [2023-12-24 22:48:01,951 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc143789c/799d54ed5d35486b8631433382ae2e95 [2023-12-24 22:48:01,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 22:48:01,954 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 22:48:01,955 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 22:48:01,955 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 22:48:01,959 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 22:48:01,960 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 10:48:01" (1/1) ... [2023-12-24 22:48:01,961 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d1c3835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:01, skipping insertion in model container [2023-12-24 22:48:01,961 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 10:48:01" (1/1) ... [2023-12-24 22:48:01,978 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 22:48:02,116 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/string_concat-noarr.i[893,906] [2023-12-24 22:48:02,127 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 22:48:02,137 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 22:48:02,148 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/string_concat-noarr.i[893,906] [2023-12-24 22:48:02,151 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 22:48:02,162 INFO L206 MainTranslator]: Completed translation [2023-12-24 22:48:02,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:02 WrapperNode [2023-12-24 22:48:02,163 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 22:48:02,165 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 22:48:02,165 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 22:48:02,165 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 22:48:02,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:02" (1/1) ... [2023-12-24 22:48:02,179 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:02" (1/1) ... [2023-12-24 22:48:02,194 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 52 [2023-12-24 22:48:02,195 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 22:48:02,195 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 22:48:02,196 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 22:48:02,196 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 22:48:02,204 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:02" (1/1) ... [2023-12-24 22:48:02,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:02" (1/1) ... [2023-12-24 22:48:02,216 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:02" (1/1) ... [2023-12-24 22:48:02,224 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-24 22:48:02,225 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:02" (1/1) ... [2023-12-24 22:48:02,225 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:02" (1/1) ... [2023-12-24 22:48:02,228 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:02" (1/1) ... [2023-12-24 22:48:02,231 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:02" (1/1) ... [2023-12-24 22:48:02,232 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:02" (1/1) ... [2023-12-24 22:48:02,233 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:02" (1/1) ... [2023-12-24 22:48:02,237 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 22:48:02,238 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 22:48:02,238 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 22:48:02,238 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 22:48:02,239 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:02" (1/1) ... [2023-12-24 22:48:02,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 22:48:02,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 22:48:02,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-24 22:48:02,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-24 22:48:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 22:48:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 22:48:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 22:48:02,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 22:48:02,355 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 22:48:02,356 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 22:48:02,445 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 22:48:02,490 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 22:48:02,491 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-24 22:48:02,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 10:48:02 BoogieIcfgContainer [2023-12-24 22:48:02,491 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 22:48:02,493 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 22:48:02,493 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 22:48:02,500 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 22:48:02,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 10:48:01" (1/3) ... [2023-12-24 22:48:02,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a1771e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 10:48:02, skipping insertion in model container [2023-12-24 22:48:02,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:48:02" (2/3) ... [2023-12-24 22:48:02,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a1771e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 10:48:02, skipping insertion in model container [2023-12-24 22:48:02,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 10:48:02" (3/3) ... [2023-12-24 22:48:02,504 INFO L112 eAbstractionObserver]: Analyzing ICFG string_concat-noarr.i [2023-12-24 22:48:02,520 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 22:48:02,521 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 22:48:02,558 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 22:48:02,564 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;@50c9012c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 22:48:02,564 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 22:48:02,567 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:48:02,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-24 22:48:02,572 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:48:02,573 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:48:02,573 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 22:48:02,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:48:02,580 INFO L85 PathProgramCache]: Analyzing trace with hash -361152758, now seen corresponding path program 1 times [2023-12-24 22:48:02,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:48:02,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1451519931] [2023-12-24 22:48:02,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:48:02,591 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:48:02,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:48:02,596 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 22:48:02,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-24 22:48:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:48:02,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 22:48:02,657 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:48:02,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:48:02,671 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 22:48:02,672 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:48:02,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1451519931] [2023-12-24 22:48:02,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1451519931] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 22:48:02,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 22:48:02,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 22:48:02,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005366875] [2023-12-24 22:48:02,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 22:48:02,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 22:48:02,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:48:02,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 22:48:02,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 22:48:02,700 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:48:02,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:48:02,721 INFO L93 Difference]: Finished difference Result 23 states and 33 transitions. [2023-12-24 22:48:02,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 22:48:02,724 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-12-24 22:48:02,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:48:02,729 INFO L225 Difference]: With dead ends: 23 [2023-12-24 22:48:02,730 INFO L226 Difference]: Without dead ends: 10 [2023-12-24 22:48:02,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 22:48:02,734 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 22:48:02,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 22:48:02,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-12-24 22:48:02,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-12-24 22:48:02,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:48:02,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2023-12-24 22:48:02,760 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 7 [2023-12-24 22:48:02,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:48:02,761 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2023-12-24 22:48:02,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:48:02,761 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2023-12-24 22:48:02,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-24 22:48:02,761 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:48:02,762 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:48:02,772 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 (2)] Forceful destruction successful, exit code 0 [2023-12-24 22:48:02,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:48:02,965 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 22:48:02,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:48:02,966 INFO L85 PathProgramCache]: Analyzing trace with hash -18772081, now seen corresponding path program 1 times [2023-12-24 22:48:02,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:48:02,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1290749931] [2023-12-24 22:48:02,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:48:02,966 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:48:02,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:48:02,968 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 22:48:02,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-24 22:48:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:48:02,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 22:48:02,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:48:03,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:48:03,080 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 22:48:03,081 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:48:03,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1290749931] [2023-12-24 22:48:03,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1290749931] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 22:48:03,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 22:48:03,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 22:48:03,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741170047] [2023-12-24 22:48:03,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 22:48:03,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 22:48:03,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:48:03,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 22:48:03,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 22:48:03,084 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:48:03,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:48:03,151 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2023-12-24 22:48:03,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-24 22:48:03,152 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-12-24 22:48:03,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:48:03,153 INFO L225 Difference]: With dead ends: 19 [2023-12-24 22:48:03,153 INFO L226 Difference]: Without dead ends: 15 [2023-12-24 22:48:03,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 22:48:03,156 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 1 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 22:48:03,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 11 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 22:48:03,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-12-24 22:48:03,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-12-24 22:48:03,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:48:03,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2023-12-24 22:48:03,165 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 9 [2023-12-24 22:48:03,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:48:03,165 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2023-12-24 22:48:03,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:48:03,166 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-12-24 22:48:03,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-24 22:48:03,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:48:03,166 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:48:03,184 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-24 22:48:03,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:48:03,372 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 22:48:03,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:48:03,373 INFO L85 PathProgramCache]: Analyzing trace with hash -815238806, now seen corresponding path program 1 times [2023-12-24 22:48:03,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:48:03,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [492810593] [2023-12-24 22:48:03,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:48:03,374 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:48:03,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:48:03,375 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 22:48:03,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-24 22:48:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:48:03,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 22:48:03,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:48:03,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:48:03,440 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:48:03,491 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:48:03,492 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:48:03,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [492810593] [2023-12-24 22:48:03,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [492810593] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:48:03,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:48:03,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-24 22:48:03,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627931726] [2023-12-24 22:48:03,493 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:48:03,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-24 22:48:03,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:48:03,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-24 22:48:03,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-24 22:48:03,495 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:48:03,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:48:03,649 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2023-12-24 22:48:03,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-24 22:48:03,649 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-12-24 22:48:03,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:48:03,651 INFO L225 Difference]: With dead ends: 38 [2023-12-24 22:48:03,651 INFO L226 Difference]: Without dead ends: 30 [2023-12-24 22:48:03,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-12-24 22:48:03,653 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 19 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 22:48:03,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 28 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 22:48:03,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-12-24 22:48:03,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2023-12-24 22:48:03,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:48:03,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2023-12-24 22:48:03,660 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 11 [2023-12-24 22:48:03,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:48:03,661 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2023-12-24 22:48:03,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:48:03,662 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2023-12-24 22:48:03,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-24 22:48:03,663 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:48:03,663 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:48:03,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-24 22:48:03,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:48:03,866 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 22:48:03,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:48:03,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1794533765, now seen corresponding path program 2 times [2023-12-24 22:48:03,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:48:03,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [585216622] [2023-12-24 22:48:03,867 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-24 22:48:03,867 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:48:03,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:48:03,869 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 22:48:03,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-24 22:48:03,902 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-24 22:48:03,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-24 22:48:03,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 22:48:03,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:48:03,986 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:48:03,987 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:48:04,135 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:48:04,136 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:48:04,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [585216622] [2023-12-24 22:48:04,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [585216622] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:48:04,136 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:48:04,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-12-24 22:48:04,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103384313] [2023-12-24 22:48:04,137 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:48:04,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-24 22:48:04,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:48:04,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-24 22:48:04,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-12-24 22:48:04,138 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:48:04,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:48:04,666 INFO L93 Difference]: Finished difference Result 86 states and 102 transitions. [2023-12-24 22:48:04,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-24 22:48:04,667 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-12-24 22:48:04,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:48:04,668 INFO L225 Difference]: With dead ends: 86 [2023-12-24 22:48:04,668 INFO L226 Difference]: Without dead ends: 72 [2023-12-24 22:48:04,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=173, Invalid=379, Unknown=0, NotChecked=0, Total=552 [2023-12-24 22:48:04,670 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 108 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 22:48:04,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 94 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 22:48:04,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-12-24 22:48:04,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 45. [2023-12-24 22:48:04,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 44 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:48:04,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2023-12-24 22:48:04,683 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 17 [2023-12-24 22:48:04,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:48:04,683 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2023-12-24 22:48:04,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:48:04,683 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2023-12-24 22:48:04,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-24 22:48:04,684 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:48:04,684 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:48:04,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-24 22:48:04,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:48:04,889 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 22:48:04,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:48:04,889 INFO L85 PathProgramCache]: Analyzing trace with hash -896926115, now seen corresponding path program 3 times [2023-12-24 22:48:04,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:48:04,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757259438] [2023-12-24 22:48:04,890 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-24 22:48:04,890 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:48:04,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:48:04,892 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 22:48:04,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-24 22:48:04,947 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-12-24 22:48:04,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-24 22:48:04,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-24 22:48:04,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:48:05,120 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:48:05,120 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:48:05,538 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:48:05,538 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:48:05,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757259438] [2023-12-24 22:48:05,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757259438] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:48:05,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:48:05,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-24 22:48:05,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006175072] [2023-12-24 22:48:05,539 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:48:05,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-24 22:48:05,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:48:05,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-24 22:48:05,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2023-12-24 22:48:05,541 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 26 states, 26 states have (on average 2.1923076923076925) internal successors, (57), 25 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:48:07,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:48:07,547 INFO L93 Difference]: Finished difference Result 206 states and 240 transitions. [2023-12-24 22:48:07,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-24 22:48:07,547 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.1923076923076925) internal successors, (57), 25 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2023-12-24 22:48:07,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:48:07,549 INFO L225 Difference]: With dead ends: 206 [2023-12-24 22:48:07,549 INFO L226 Difference]: Without dead ends: 180 [2023-12-24 22:48:07,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=668, Invalid=1588, Unknown=0, NotChecked=0, Total=2256 [2023-12-24 22:48:07,551 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 441 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-24 22:48:07,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 313 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-24 22:48:07,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-12-24 22:48:07,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 87. [2023-12-24 22:48:07,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 86 states have (on average 1.1511627906976745) internal successors, (99), 86 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:48:07,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2023-12-24 22:48:07,568 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 29 [2023-12-24 22:48:07,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:48:07,568 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2023-12-24 22:48:07,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.1923076923076925) internal successors, (57), 25 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:48:07,569 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2023-12-24 22:48:07,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-24 22:48:07,575 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:48:07,575 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:48:07,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-24 22:48:07,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:48:07,778 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 22:48:07,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:48:07,778 INFO L85 PathProgramCache]: Analyzing trace with hash -562887391, now seen corresponding path program 4 times [2023-12-24 22:48:07,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:48:07,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153685681] [2023-12-24 22:48:07,779 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-24 22:48:07,779 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:48:07,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:48:07,780 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 22:48:07,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-24 22:48:07,850 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-24 22:48:07,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-24 22:48:07,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-24 22:48:07,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:48:08,233 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:48:08,233 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:48:09,646 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:48:09,647 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:48:09,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153685681] [2023-12-24 22:48:09,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [153685681] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:48:09,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:48:09,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 49 [2023-12-24 22:48:09,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723516642] [2023-12-24 22:48:09,647 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:48:09,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-12-24 22:48:09,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:48:09,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-12-24 22:48:09,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=627, Invalid=1823, Unknown=0, NotChecked=0, Total=2450 [2023-12-24 22:48:09,652 INFO L87 Difference]: Start difference. First operand 87 states and 99 transitions. Second operand has 50 states, 50 states have (on average 2.1) internal successors, (105), 49 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:48:20,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:48:20,910 INFO L93 Difference]: Finished difference Result 554 states and 624 transitions. [2023-12-24 22:48:20,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2023-12-24 22:48:20,910 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.1) internal successors, (105), 49 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-12-24 22:48:20,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:48:20,913 INFO L225 Difference]: With dead ends: 554 [2023-12-24 22:48:20,913 INFO L226 Difference]: Without dead ends: 504 [2023-12-24 22:48:20,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1244 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=2630, Invalid=6490, Unknown=0, NotChecked=0, Total=9120 [2023-12-24 22:48:20,917 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 1965 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 2496 mSolverCounterSat, 787 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1965 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 3283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 787 IncrementalHoareTripleChecker+Valid, 2496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-24 22:48:20,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1965 Valid, 1254 Invalid, 3283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [787 Valid, 2496 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-24 22:48:20,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2023-12-24 22:48:20,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 171. [2023-12-24 22:48:20,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 170 states have (on average 1.1470588235294117) internal successors, (195), 170 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:48:20,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 195 transitions. [2023-12-24 22:48:20,942 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 195 transitions. Word has length 53 [2023-12-24 22:48:20,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:48:20,942 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 195 transitions. [2023-12-24 22:48:20,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.1) internal successors, (105), 49 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:48:20,943 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 195 transitions. [2023-12-24 22:48:20,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-24 22:48:20,945 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:48:20,945 INFO L195 NwaCegarLoop]: trace histogram [47, 46, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:48:20,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-24 22:48:21,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:48:21,149 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 22:48:21,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:48:21,149 INFO L85 PathProgramCache]: Analyzing trace with hash 2063855273, now seen corresponding path program 5 times [2023-12-24 22:48:21,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:48:21,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [297082057] [2023-12-24 22:48:21,150 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-24 22:48:21,150 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:48:21,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:48:21,151 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 22:48:21,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-24 22:48:21,446 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-12-24 22:48:21,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-24 22:48:21,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 51 conjunts are in the unsatisfiable core [2023-12-24 22:48:21,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:48:22,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:48:22,518 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:48:29,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:48:29,314 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:48:29,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [297082057] [2023-12-24 22:48:29,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [297082057] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:48:29,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:48:29,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 97 [2023-12-24 22:48:29,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897926527] [2023-12-24 22:48:29,315 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:48:29,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2023-12-24 22:48:29,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:48:29,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2023-12-24 22:48:29,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2403, Invalid=7103, Unknown=0, NotChecked=0, Total=9506 [2023-12-24 22:48:29,320 INFO L87 Difference]: Start difference. First operand 171 states and 195 transitions. Second operand has 98 states, 98 states have (on average 2.0510204081632653) internal successors, (201), 97 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:50:08,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:50:08,512 INFO L93 Difference]: Finished difference Result 1682 states and 1824 transitions. [2023-12-24 22:50:08,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2023-12-24 22:50:08,513 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 2.0510204081632653) internal successors, (201), 97 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2023-12-24 22:50:08,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:50:08,518 INFO L225 Difference]: With dead ends: 1682 [2023-12-24 22:50:08,519 INFO L226 Difference]: Without dead ends: 1584 [2023-12-24 22:50:08,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5360 ImplicationChecksByTransitivity, 99.2s TimeCoverageRelationStatistics Valid=10442, Invalid=26230, Unknown=0, NotChecked=0, Total=36672 [2023-12-24 22:50:08,527 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 8581 mSDsluCounter, 4607 mSDsCounter, 0 mSdLazyCounter, 9408 mSolverCounterSat, 3319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8581 SdHoareTripleChecker+Valid, 4703 SdHoareTripleChecker+Invalid, 12727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3319 IncrementalHoareTripleChecker+Valid, 9408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-12-24 22:50:08,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8581 Valid, 4703 Invalid, 12727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3319 Valid, 9408 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-12-24 22:50:08,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2023-12-24 22:50:08,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 339. [2023-12-24 22:50:08,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 338 states have (on average 1.1449704142011834) internal successors, (387), 338 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:50:08,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 387 transitions. [2023-12-24 22:50:08,586 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 387 transitions. Word has length 101 [2023-12-24 22:50:08,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:50:08,586 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 387 transitions. [2023-12-24 22:50:08,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 2.0510204081632653) internal successors, (201), 97 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:50:08,587 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 387 transitions. [2023-12-24 22:50:08,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-12-24 22:50:08,590 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:50:08,590 INFO L195 NwaCegarLoop]: trace histogram [95, 94, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:50:08,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-24 22:50:08,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:50:08,795 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 22:50:08,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:50:08,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1441713735, now seen corresponding path program 6 times [2023-12-24 22:50:08,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:50:08,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800580470] [2023-12-24 22:50:08,797 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-24 22:50:08,797 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:50:08,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:50:08,798 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) [2023-12-24 22:50:08,799 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 [2023-12-24 22:50:09,721 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-12-24 22:50:09,721 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-24 22:50:09,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 98 conjunts are in the unsatisfiable core [2023-12-24 22:50:09,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:50:13,367 INFO L134 CoverageAnalysis]: Checked inductivity of 8930 backedges. 0 proven. 8930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:50:13,368 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:50:32,637 INFO L134 CoverageAnalysis]: Checked inductivity of 8930 backedges. 0 proven. 8930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:50:32,637 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:50:32,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [800580470] [2023-12-24 22:50:32,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [800580470] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:50:32,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:50:32,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97] total 193 [2023-12-24 22:50:32,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353913010] [2023-12-24 22:50:32,638 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:50:32,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2023-12-24 22:50:32,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:50:32,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2023-12-24 22:50:32,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9411, Invalid=28031, Unknown=0, NotChecked=0, Total=37442 [2023-12-24 22:50:32,646 INFO L87 Difference]: Start difference. First operand 339 states and 387 transitions. Second operand has 194 states, 194 states have (on average 2.0257731958762886) internal successors, (393), 193 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:01:37,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 23:01:37,208 INFO L93 Difference]: Finished difference Result 5666 states and 5952 transitions. [2023-12-24 23:01:37,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 288 states. [2023-12-24 23:01:37,209 INFO L78 Accepts]: Start accepts. Automaton has has 194 states, 194 states have (on average 2.0257731958762886) internal successors, (393), 193 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2023-12-24 23:01:37,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 23:01:37,230 INFO L225 Difference]: With dead ends: 5666 [2023-12-24 23:01:37,230 INFO L226 Difference]: Without dead ends: 5472 [2023-12-24 23:01:37,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22232 ImplicationChecksByTransitivity, 660.0s TimeCoverageRelationStatistics Valid=41618, Invalid=105454, Unknown=0, NotChecked=0, Total=147072 [2023-12-24 23:01:37,249 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 36399 mSDsluCounter, 18622 mSDsCounter, 0 mSdLazyCounter, 37632 mSolverCounterSat, 13853 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36399 SdHoareTripleChecker+Valid, 18814 SdHoareTripleChecker+Invalid, 51485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 13853 IncrementalHoareTripleChecker+Valid, 37632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time [2023-12-24 23:01:37,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36399 Valid, 18814 Invalid, 51485 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [13853 Valid, 37632 Invalid, 0 Unknown, 0 Unchecked, 23.0s Time] [2023-12-24 23:01:37,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5472 states. [2023-12-24 23:01:37,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5472 to 675. [2023-12-24 23:01:37,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 674 states have (on average 1.1439169139465875) internal successors, (771), 674 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:01:37,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 771 transitions. [2023-12-24 23:01:37,485 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 771 transitions. Word has length 197 [2023-12-24 23:01:37,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 23:01:37,485 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 771 transitions. [2023-12-24 23:01:37,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 194 states, 194 states have (on average 2.0257731958762886) internal successors, (393), 193 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:01:37,486 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 771 transitions. [2023-12-24 23:01:37,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2023-12-24 23:01:37,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 23:01:37,491 INFO L195 NwaCegarLoop]: trace histogram [191, 190, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 23:01:37,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-24 23:01:37,700 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 [2023-12-24 23:01:37,700 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 23:01:37,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 23:01:37,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1755744295, now seen corresponding path program 7 times [2023-12-24 23:01:37,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 23:01:37,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980173430] [2023-12-24 23:01:37,702 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-24 23:01:37,702 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 23:01:37,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 23:01:37,703 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 23:01:37,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-24 23:01:39,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 23:01:39,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 192 conjunts are in the unsatisfiable core [2023-12-24 23:01:39,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 23:01:53,874 INFO L134 CoverageAnalysis]: Checked inductivity of 36290 backedges. 0 proven. 36290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:01:53,874 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-24 23:02:18,996 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 23:02:19,006 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-12-24 23:02:19,010 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 23:02:19,010 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 23:02:19,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 23:02:19,197 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 390 with TraceHistMax 191,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 288 known predicates. [2023-12-24 23:02:19,200 INFO L445 BasicCegarLoop]: Path program histogram: [7, 1, 1] [2023-12-24 23:02:19,202 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 23:02:19,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 11:02:19 BoogieIcfgContainer [2023-12-24 23:02:19,204 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 23:02:19,204 INFO L158 Benchmark]: Toolchain (without parser) took 857250.11ms. Allocated memory was 284.2MB in the beginning and 341.8MB in the end (delta: 57.7MB). Free memory was 228.5MB in the beginning and 208.0MB in the end (delta: 20.5MB). Peak memory consumption was 78.7MB. Max. memory is 8.0GB. [2023-12-24 23:02:19,204 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 185.6MB. Free memory is still 129.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 23:02:19,205 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.23ms. Allocated memory is still 284.2MB. Free memory was 228.5MB in the beginning and 217.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-24 23:02:19,205 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.19ms. Allocated memory is still 284.2MB. Free memory was 216.9MB in the beginning and 215.8MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-24 23:02:19,205 INFO L158 Benchmark]: Boogie Preprocessor took 41.72ms. Allocated memory is still 284.2MB. Free memory was 215.8MB in the beginning and 213.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-24 23:02:19,205 INFO L158 Benchmark]: RCFGBuilder took 253.54ms. Allocated memory is still 284.2MB. Free memory was 213.8MB in the beginning and 201.7MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-24 23:02:19,206 INFO L158 Benchmark]: TraceAbstraction took 856710.78ms. Allocated memory was 284.2MB in the beginning and 341.8MB in the end (delta: 57.7MB). Free memory was 201.2MB in the beginning and 208.0MB in the end (delta: -6.8MB). Peak memory consumption was 51.4MB. Max. memory is 8.0GB. [2023-12-24 23:02:19,207 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 185.6MB. Free memory is still 129.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 208.23ms. Allocated memory is still 284.2MB. Free memory was 228.5MB in the beginning and 217.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.19ms. Allocated memory is still 284.2MB. Free memory was 216.9MB in the beginning and 215.8MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.72ms. Allocated memory is still 284.2MB. Free memory was 215.8MB in the beginning and 213.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 253.54ms. Allocated memory is still 284.2MB. Free memory was 213.8MB in the beginning and 201.7MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 856710.78ms. Allocated memory was 284.2MB in the beginning and 341.8MB in the end (delta: 57.7MB). Free memory was 201.2MB in the beginning and 208.0MB in the end (delta: -6.8MB). Peak memory consumption was 51.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 390 with TraceHistMax 191,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 288 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 856.7s, OverallIterations: 9, TraceHistogramMax: 191, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 777.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 47514 SdHoareTripleChecker+Valid, 32.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 47514 mSDsluCounter, 25231 SdHoareTripleChecker+Invalid, 27.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24835 mSDsCounter, 18215 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50435 IncrementalHoareTripleChecker+Invalid, 68650 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18215 mSolverCounterUnsat, 396 mSDtfsCounter, 50435 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1185 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 747 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29155 ImplicationChecksByTransitivity, 772.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=675occurred in iteration=8, InterpolantAutomatonStates: 573, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 6501 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 33.6s InterpolantComputationTime, 424 NumberOfCodeBlocks, 424 NumberOfCodeBlocksAsserted, 159 NumberOfCheckSat, 818 ConstructedInterpolants, 0 QuantifiedInterpolants, 3827 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1059 ConjunctsInSsa, 207 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 0/23460 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