/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/eca-rers2012/Problem15_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 13:37:23,680 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 13:37:23,724 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 13:37:23,729 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 13:37:23,730 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 13:37:23,751 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 13:37:23,752 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 13:37:23,752 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 13:37:23,752 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 13:37:23,753 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 13:37:23,753 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 13:37:23,753 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 13:37:23,753 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 13:37:23,754 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 13:37:23,754 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 13:37:23,754 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 13:37:23,754 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 13:37:23,754 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 13:37:23,755 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 13:37:23,755 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 13:37:23,755 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 13:37:23,758 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 13:37:23,758 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 13:37:23,759 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 13:37:23,759 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 13:37:23,759 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 13:37:23,759 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 13:37:23,759 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 13:37:23,760 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 13:37:23,760 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 13:37:23,760 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 13:37:23,760 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 13:37:23,761 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 13:37:23,761 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 13:37:23,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 13:37:23,761 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 13:37:23,761 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 13:37:23,762 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 13:37:23,762 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 13:37:23,762 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 13:37:23,762 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 13:37:23,767 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 13:37:23,767 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 13:37:23,767 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 13:37:23,767 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 13:37:23,767 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 13:37:23,767 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 13:37:23,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 13:37:23,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 13:37:23,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 13:37:23,924 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 13:37:23,924 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 13:37:23,926 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label42.c [2023-12-22 13:37:24,918 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 13:37:25,182 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 13:37:25,183 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label42.c [2023-12-22 13:37:25,200 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4692282a1/f4e2c99bef3d4d7e97d4e68b429e97aa/FLAG77883f530 [2023-12-22 13:37:25,214 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4692282a1/f4e2c99bef3d4d7e97d4e68b429e97aa [2023-12-22 13:37:25,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 13:37:25,217 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 13:37:25,219 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 13:37:25,219 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 13:37:25,222 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 13:37:25,223 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:37:25" (1/1) ... [2023-12-22 13:37:25,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f9a937a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:37:25, skipping insertion in model container [2023-12-22 13:37:25,223 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:37:25" (1/1) ... [2023-12-22 13:37:25,286 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 13:37:25,452 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label42.c[5695,5708] [2023-12-22 13:37:25,803 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 13:37:25,814 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 13:37:25,837 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label42.c[5695,5708] [2023-12-22 13:37:26,015 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 13:37:26,028 INFO L206 MainTranslator]: Completed translation [2023-12-22 13:37:26,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:37:26 WrapperNode [2023-12-22 13:37:26,029 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 13:37:26,031 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 13:37:26,031 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 13:37:26,031 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 13:37:26,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:37:26" (1/1) ... [2023-12-22 13:37:26,066 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:37:26" (1/1) ... [2023-12-22 13:37:26,115 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1757 [2023-12-22 13:37:26,116 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 13:37:26,116 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 13:37:26,116 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 13:37:26,116 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 13:37:26,125 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:37:26" (1/1) ... [2023-12-22 13:37:26,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:37:26" (1/1) ... [2023-12-22 13:37:26,133 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:37:26" (1/1) ... [2023-12-22 13:37:26,163 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-22 13:37:26,176 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:37:26" (1/1) ... [2023-12-22 13:37:26,176 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:37:26" (1/1) ... [2023-12-22 13:37:26,215 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:37:26" (1/1) ... [2023-12-22 13:37:26,234 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:37:26" (1/1) ... [2023-12-22 13:37:26,250 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:37:26" (1/1) ... [2023-12-22 13:37:26,258 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:37:26" (1/1) ... [2023-12-22 13:37:26,267 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 13:37:26,268 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 13:37:26,268 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 13:37:26,268 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 13:37:26,269 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:37:26" (1/1) ... [2023-12-22 13:37:26,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 13:37:26,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 13:37:26,291 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) [2023-12-22 13:37:26,300 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 [2023-12-22 13:37:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 13:37:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 13:37:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 13:37:26,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 13:37:26,358 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 13:37:26,359 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 13:37:40,415 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 13:37:40,457 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 13:37:40,458 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 13:37:40,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:37:40 BoogieIcfgContainer [2023-12-22 13:37:40,458 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 13:37:40,459 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 13:37:40,459 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 13:37:40,462 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 13:37:40,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:37:25" (1/3) ... [2023-12-22 13:37:40,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61813d4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:37:40, skipping insertion in model container [2023-12-22 13:37:40,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:37:26" (2/3) ... [2023-12-22 13:37:40,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61813d4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:37:40, skipping insertion in model container [2023-12-22 13:37:40,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:37:40" (3/3) ... [2023-12-22 13:37:40,463 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label42.c [2023-12-22 13:37:40,474 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 13:37:40,474 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 13:37:40,514 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 13:37:40,518 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;@34a06925, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 13:37:40,518 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 13:37:40,522 INFO L276 IsEmpty]: Start isEmpty. Operand has 362 states, 360 states have (on average 1.9111111111111112) internal successors, (688), 361 states have internal predecessors, (688), 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) [2023-12-22 13:37:40,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-22 13:37:40,526 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 13:37:40,527 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:37:40,527 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 13:37:40,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 13:37:40,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1725746079, now seen corresponding path program 1 times [2023-12-22 13:37:40,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 13:37:40,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867441218] [2023-12-22 13:37:40,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 13:37:40,543 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 [2023-12-22 13:37:40,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 13:37:40,548 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) [2023-12-22 13:37:40,552 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 [2023-12-22 13:37:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 13:37:40,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 13:37:40,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 13:37:40,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 13:37:40,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 13:37:40,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 13:37:40,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867441218] [2023-12-22 13:37:40,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [867441218] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 13:37:40,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 13:37:40,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 13:37:40,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413160007] [2023-12-22 13:37:40,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 13:37:40,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 13:37:40,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 13:37:40,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 13:37:40,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 13:37:40,672 INFO L87 Difference]: Start difference. First operand has 362 states, 360 states have (on average 1.9111111111111112) internal successors, (688), 361 states have internal predecessors, (688), 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 22.5) internal successors, (45), 2 states have internal predecessors, (45), 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) [2023-12-22 13:37:40,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 13:37:40,726 INFO L93 Difference]: Finished difference Result 723 states and 1375 transitions. [2023-12-22 13:37:40,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 13:37:40,730 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 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 45 [2023-12-22 13:37:40,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 13:37:40,743 INFO L225 Difference]: With dead ends: 723 [2023-12-22 13:37:40,743 INFO L226 Difference]: Without dead ends: 360 [2023-12-22 13:37:40,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 13:37:40,751 INFO L413 NwaCegarLoop]: 623 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, 623 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 [2023-12-22 13:37:40,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 623 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 13:37:40,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2023-12-22 13:37:40,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2023-12-22 13:37:40,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.7353760445682451) internal successors, (623), 359 states have internal predecessors, (623), 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) [2023-12-22 13:37:40,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 623 transitions. [2023-12-22 13:37:40,805 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 623 transitions. Word has length 45 [2023-12-22 13:37:40,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 13:37:40,805 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 623 transitions. [2023-12-22 13:37:40,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 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) [2023-12-22 13:37:40,806 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 623 transitions. [2023-12-22 13:37:40,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-22 13:37:40,806 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 13:37:40,806 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:37:40,844 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 [2023-12-22 13:37:41,008 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 [2023-12-22 13:37:41,009 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 13:37:41,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 13:37:41,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1946706512, now seen corresponding path program 1 times [2023-12-22 13:37:41,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 13:37:41,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577336731] [2023-12-22 13:37:41,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 13:37:41,010 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 [2023-12-22 13:37:41,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 13:37:41,011 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) [2023-12-22 13:37:41,013 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 [2023-12-22 13:37:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 13:37:41,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 13:37:41,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 13:37:41,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 13:37:41,186 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 13:37:41,186 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 13:37:41,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1577336731] [2023-12-22 13:37:41,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1577336731] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 13:37:41,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 13:37:41,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 13:37:41,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172367903] [2023-12-22 13:37:41,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 13:37:41,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 13:37:41,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 13:37:41,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 13:37:41,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 13:37:41,188 INFO L87 Difference]: Start difference. First operand 360 states and 623 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 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) [2023-12-22 13:37:57,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 13:37:57,913 INFO L93 Difference]: Finished difference Result 1034 states and 1810 transitions. [2023-12-22 13:37:57,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 13:37:57,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 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 45 [2023-12-22 13:37:57,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 13:37:57,916 INFO L225 Difference]: With dead ends: 1034 [2023-12-22 13:37:57,916 INFO L226 Difference]: Without dead ends: 675 [2023-12-22 13:37:57,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 13:37:57,918 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 275 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 1143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2023-12-22 13:37:57,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 224 Invalid, 1143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 16.6s Time] [2023-12-22 13:37:57,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2023-12-22 13:37:57,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 667. [2023-12-22 13:37:57,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 666 states have (on average 1.578078078078078) internal successors, (1051), 666 states have internal predecessors, (1051), 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) [2023-12-22 13:37:57,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 1051 transitions. [2023-12-22 13:37:57,935 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 1051 transitions. Word has length 45 [2023-12-22 13:37:57,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 13:37:57,935 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 1051 transitions. [2023-12-22 13:37:57,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 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) [2023-12-22 13:37:57,935 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 1051 transitions. [2023-12-22 13:37:57,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-22 13:37:57,937 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 13:37:57,937 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:37:57,952 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 [2023-12-22 13:37:58,140 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 [2023-12-22 13:37:58,141 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 13:37:58,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 13:37:58,141 INFO L85 PathProgramCache]: Analyzing trace with hash -627331516, now seen corresponding path program 1 times [2023-12-22 13:37:58,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 13:37:58,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900404543] [2023-12-22 13:37:58,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 13:37:58,142 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 [2023-12-22 13:37:58,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 13:37:58,143 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) [2023-12-22 13:37:58,144 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 [2023-12-22 13:37:58,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 13:37:58,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 13:37:58,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 13:37:58,334 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 13:37:58,335 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 13:37:58,335 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 13:37:58,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900404543] [2023-12-22 13:37:58,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900404543] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 13:37:58,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 13:37:58,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 13:37:58,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275332512] [2023-12-22 13:37:58,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 13:37:58,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 13:37:58,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 13:37:58,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 13:37:58,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 13:37:58,337 INFO L87 Difference]: Start difference. First operand 667 states and 1051 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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) [2023-12-22 13:38:18,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 13:38:18,387 INFO L93 Difference]: Finished difference Result 1629 states and 2634 transitions. [2023-12-22 13:38:18,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 13:38:18,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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 111 [2023-12-22 13:38:18,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 13:38:18,407 INFO L225 Difference]: With dead ends: 1629 [2023-12-22 13:38:18,407 INFO L226 Difference]: Without dead ends: 963 [2023-12-22 13:38:18,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 13:38:18,408 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 248 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 1134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2023-12-22 13:38:18,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 345 Invalid, 1134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 20.0s Time] [2023-12-22 13:38:18,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2023-12-22 13:38:18,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 961. [2023-12-22 13:38:18,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 960 states have (on average 1.3635416666666667) internal successors, (1309), 960 states have internal predecessors, (1309), 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) [2023-12-22 13:38:18,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1309 transitions. [2023-12-22 13:38:18,421 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1309 transitions. Word has length 111 [2023-12-22 13:38:18,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 13:38:18,422 INFO L495 AbstractCegarLoop]: Abstraction has 961 states and 1309 transitions. [2023-12-22 13:38:18,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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) [2023-12-22 13:38:18,422 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1309 transitions. [2023-12-22 13:38:18,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-22 13:38:18,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 13:38:18,424 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:38:18,432 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 [2023-12-22 13:38:18,627 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 [2023-12-22 13:38:18,627 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 13:38:18,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 13:38:18,628 INFO L85 PathProgramCache]: Analyzing trace with hash 118588986, now seen corresponding path program 1 times [2023-12-22 13:38:18,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 13:38:18,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2128268948] [2023-12-22 13:38:18,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 13:38:18,629 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 [2023-12-22 13:38:18,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 13:38:18,630 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) [2023-12-22 13:38:18,631 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 [2023-12-22 13:38:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 13:38:18,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 13:38:18,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 13:38:18,792 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 13:38:18,792 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 13:38:18,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 13:38:18,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2128268948] [2023-12-22 13:38:18,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2128268948] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 13:38:18,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 13:38:18,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 13:38:18,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803570821] [2023-12-22 13:38:18,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 13:38:18,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 13:38:18,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 13:38:18,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 13:38:18,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 13:38:18,794 INFO L87 Difference]: Start difference. First operand 961 states and 1309 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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) [2023-12-22 13:38:37,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 13:38:37,372 INFO L93 Difference]: Finished difference Result 1927 states and 2830 transitions. [2023-12-22 13:38:37,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 13:38:37,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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 115 [2023-12-22 13:38:37,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 13:38:37,376 INFO L225 Difference]: With dead ends: 1927 [2023-12-22 13:38:37,377 INFO L226 Difference]: Without dead ends: 1266 [2023-12-22 13:38:37,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 13:38:37,378 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 258 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2023-12-22 13:38:37,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 314 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 18.5s Time] [2023-12-22 13:38:37,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2023-12-22 13:38:37,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1264. [2023-12-22 13:38:37,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1263 states have (on average 1.3056215360253365) internal successors, (1649), 1263 states have internal predecessors, (1649), 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) [2023-12-22 13:38:37,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1649 transitions. [2023-12-22 13:38:37,396 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 1649 transitions. Word has length 115 [2023-12-22 13:38:37,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 13:38:37,396 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 1649 transitions. [2023-12-22 13:38:37,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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) [2023-12-22 13:38:37,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 1649 transitions. [2023-12-22 13:38:37,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-22 13:38:37,399 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 13:38:37,399 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:38:37,404 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 [2023-12-22 13:38:37,601 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 [2023-12-22 13:38:37,602 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 13:38:37,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 13:38:37,602 INFO L85 PathProgramCache]: Analyzing trace with hash -348705360, now seen corresponding path program 1 times [2023-12-22 13:38:37,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 13:38:37,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [608972814] [2023-12-22 13:38:37,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 13:38:37,603 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 [2023-12-22 13:38:37,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 13:38:37,604 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) [2023-12-22 13:38:37,617 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 [2023-12-22 13:38:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 13:38:37,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 13:38:37,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 13:38:38,736 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 13:38:38,736 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 13:38:39,572 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 13:38:39,572 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 13:38:39,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [608972814] [2023-12-22 13:38:39,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [608972814] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 13:38:39,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 13:38:39,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 13:38:39,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078939590] [2023-12-22 13:38:39,573 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 13:38:39,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 13:38:39,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 13:38:39,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 13:38:39,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-22 13:38:39,574 INFO L87 Difference]: Start difference. First operand 1264 states and 1649 transitions. Second operand has 7 states, 7 states have (on average 37.142857142857146) internal successors, (260), 6 states have internal predecessors, (260), 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) [2023-12-22 13:39:49,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 13:39:49,233 INFO L93 Difference]: Finished difference Result 4129 states and 5581 transitions. [2023-12-22 13:39:49,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 13:39:49,234 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 37.142857142857146) internal successors, (260), 6 states have internal predecessors, (260), 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 136 [2023-12-22 13:39:49,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 13:39:49,239 INFO L225 Difference]: With dead ends: 4129 [2023-12-22 13:39:49,239 INFO L226 Difference]: Without dead ends: 1869 [2023-12-22 13:39:49,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-12-22 13:39:49,241 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 3254 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 4275 mSolverCounterSat, 839 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3254 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 5114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 839 IncrementalHoareTripleChecker+Valid, 4275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.4s IncrementalHoareTripleChecker+Time [2023-12-22 13:39:49,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3254 Valid, 249 Invalid, 5114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [839 Valid, 4275 Invalid, 0 Unknown, 0 Unchecked, 69.4s Time] [2023-12-22 13:39:49,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1869 states. [2023-12-22 13:39:49,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1869 to 1562. [2023-12-22 13:39:49,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1561 states have (on average 1.1691223574631646) internal successors, (1825), 1561 states have internal predecessors, (1825), 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) [2023-12-22 13:39:49,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 1825 transitions. [2023-12-22 13:39:49,258 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 1825 transitions. Word has length 136 [2023-12-22 13:39:49,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 13:39:49,258 INFO L495 AbstractCegarLoop]: Abstraction has 1562 states and 1825 transitions. [2023-12-22 13:39:49,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 37.142857142857146) internal successors, (260), 6 states have internal predecessors, (260), 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) [2023-12-22 13:39:49,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 1825 transitions. [2023-12-22 13:39:49,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2023-12-22 13:39:49,263 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 13:39:49,263 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:39:49,267 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 [2023-12-22 13:39:49,465 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 [2023-12-22 13:39:49,465 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 13:39:49,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 13:39:49,466 INFO L85 PathProgramCache]: Analyzing trace with hash -873365100, now seen corresponding path program 1 times [2023-12-22 13:39:49,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 13:39:49,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1614384251] [2023-12-22 13:39:49,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 13:39:49,467 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 [2023-12-22 13:39:49,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 13:39:49,468 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) [2023-12-22 13:39:49,469 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 [2023-12-22 13:39:49,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 13:39:49,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 13:39:49,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 13:39:50,652 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-22 13:39:50,652 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 13:39:50,652 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 13:39:50,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1614384251] [2023-12-22 13:39:50,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1614384251] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 13:39:50,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 13:39:50,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 13:39:50,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525799436] [2023-12-22 13:39:50,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 13:39:50,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 13:39:50,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 13:39:50,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 13:39:50,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 13:39:50,654 INFO L87 Difference]: Start difference. First operand 1562 states and 1825 transitions. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 2 states have internal predecessors, (271), 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) [2023-12-22 13:40:04,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 13:40:04,409 INFO L93 Difference]: Finished difference Result 2824 states and 3346 transitions. [2023-12-22 13:40:04,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 13:40:04,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 2 states have internal predecessors, (271), 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 314 [2023-12-22 13:40:04,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 13:40:04,419 INFO L225 Difference]: With dead ends: 2824 [2023-12-22 13:40:04,419 INFO L226 Difference]: Without dead ends: 1562 [2023-12-22 13:40:04,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 13:40:04,421 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 105 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2023-12-22 13:40:04,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 313 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 13.7s Time] [2023-12-22 13:40:04,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1562 states. [2023-12-22 13:40:04,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1562 to 1562. [2023-12-22 13:40:04,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1561 states have (on average 1.167841127482383) internal successors, (1823), 1561 states have internal predecessors, (1823), 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) [2023-12-22 13:40:04,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 1823 transitions. [2023-12-22 13:40:04,441 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 1823 transitions. Word has length 314 [2023-12-22 13:40:04,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 13:40:04,441 INFO L495 AbstractCegarLoop]: Abstraction has 1562 states and 1823 transitions. [2023-12-22 13:40:04,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 2 states have internal predecessors, (271), 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) [2023-12-22 13:40:04,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 1823 transitions. [2023-12-22 13:40:04,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2023-12-22 13:40:04,444 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 13:40:04,445 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:40:04,452 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-22 13:40:04,650 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 [2023-12-22 13:40:04,650 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 13:40:04,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 13:40:04,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1746665602, now seen corresponding path program 1 times [2023-12-22 13:40:04,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 13:40:04,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [853192723] [2023-12-22 13:40:04,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 13:40:04,653 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 [2023-12-22 13:40:04,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 13:40:04,654 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) [2023-12-22 13:40:04,675 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 [2023-12-22 13:40:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 13:40:04,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 13:40:04,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 13:40:05,912 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 87 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 13:40:05,913 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 13:40:16,423 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 87 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 13:40:16,424 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 13:40:16,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [853192723] [2023-12-22 13:40:16,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [853192723] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 13:40:16,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 13:40:16,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-22 13:40:16,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080446305] [2023-12-22 13:40:16,424 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 13:40:16,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 13:40:16,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 13:40:16,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 13:40:16,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 13:40:16,426 INFO L87 Difference]: Start difference. First operand 1562 states and 1823 transitions. Second operand has 6 states, 6 states have (on average 121.83333333333333) internal successors, (731), 5 states have internal predecessors, (731), 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) [2023-12-22 13:40:31,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:40:36,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:40:57,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:41:50,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:41:58,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:42:15,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:42:43,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:42:47,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:43:07,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:43:10,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:43:17,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:43:30,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:44:03,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 13:44:03,657 INFO L93 Difference]: Finished difference Result 5570 states and 6767 transitions. [2023-12-22 13:44:03,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 13:44:03,686 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 121.83333333333333) internal successors, (731), 5 states have internal predecessors, (731), 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 388 [2023-12-22 13:44:03,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 13:44:03,696 INFO L225 Difference]: With dead ends: 5570 [2023-12-22 13:44:03,697 INFO L226 Difference]: Without dead ends: 4308 [2023-12-22 13:44:03,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 775 GetRequests, 770 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-22 13:44:03,699 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 1009 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 2588 mSolverCounterSat, 958 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 215.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 3546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 958 IncrementalHoareTripleChecker+Valid, 2588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 226.8s IncrementalHoareTripleChecker+Time [2023-12-22 13:44:03,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 157 Invalid, 3546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [958 Valid, 2588 Invalid, 0 Unknown, 0 Unchecked, 226.8s Time] [2023-12-22 13:44:03,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4308 states. [2023-12-22 13:44:03,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4308 to 3979. [2023-12-22 13:44:03,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3979 states, 3978 states have (on average 1.2076420311714429) internal successors, (4804), 3978 states have internal predecessors, (4804), 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) [2023-12-22 13:44:03,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3979 states to 3979 states and 4804 transitions. [2023-12-22 13:44:03,770 INFO L78 Accepts]: Start accepts. Automaton has 3979 states and 4804 transitions. Word has length 388 [2023-12-22 13:44:03,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 13:44:03,771 INFO L495 AbstractCegarLoop]: Abstraction has 3979 states and 4804 transitions. [2023-12-22 13:44:03,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.83333333333333) internal successors, (731), 5 states have internal predecessors, (731), 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) [2023-12-22 13:44:03,771 INFO L276 IsEmpty]: Start isEmpty. Operand 3979 states and 4804 transitions. [2023-12-22 13:44:03,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2023-12-22 13:44:03,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 13:44:03,775 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:44:03,782 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 [2023-12-22 13:44:03,982 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 [2023-12-22 13:44:03,983 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 13:44:03,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 13:44:03,983 INFO L85 PathProgramCache]: Analyzing trace with hash 788196608, now seen corresponding path program 1 times [2023-12-22 13:44:03,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 13:44:03,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084684539] [2023-12-22 13:44:03,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 13:44:03,987 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 [2023-12-22 13:44:03,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 13:44:03,996 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) [2023-12-22 13:44:04,001 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 [2023-12-22 13:44:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 13:44:04,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 13:44:04,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 13:44:07,412 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 22 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 13:44:07,413 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 13:44:50,487 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 22 proven. 65 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-22 13:44:50,487 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 13:44:50,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084684539] [2023-12-22 13:44:50,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084684539] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 13:44:50,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 13:44:50,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2023-12-22 13:44:50,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666037476] [2023-12-22 13:44:50,487 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 13:44:50,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 13:44:50,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 13:44:50,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 13:44:50,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-22 13:44:50,489 INFO L87 Difference]: Start difference. First operand 3979 states and 4804 transitions. Second operand has 7 states, 7 states have (on average 102.42857142857143) internal successors, (717), 6 states have internal predecessors, (717), 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) [2023-12-22 13:45:06,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:45:23,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:46:02,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:46:04,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 13:46:04,962 INFO L93 Difference]: Finished difference Result 11354 states and 13848 transitions. [2023-12-22 13:46:04,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 13:46:04,981 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 102.42857142857143) internal successors, (717), 6 states have internal predecessors, (717), 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 400 [2023-12-22 13:46:04,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 13:46:04,997 INFO L225 Difference]: With dead ends: 11354 [2023-12-22 13:46:04,997 INFO L226 Difference]: Without dead ends: 7875 [2023-12-22 13:46:04,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 799 GetRequests, 793 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-22 13:46:05,000 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 285 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 4359 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 4621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 4359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.7s IncrementalHoareTripleChecker+Time [2023-12-22 13:46:05,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 469 Invalid, 4621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 4359 Invalid, 0 Unknown, 0 Unchecked, 73.7s Time] [2023-12-22 13:46:05,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7875 states. [2023-12-22 13:46:05,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7875 to 6672. [2023-12-22 13:46:05,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6672 states, 6671 states have (on average 1.1557487633038526) internal successors, (7710), 6671 states have internal predecessors, (7710), 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) [2023-12-22 13:46:05,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6672 states to 6672 states and 7710 transitions. [2023-12-22 13:46:05,079 INFO L78 Accepts]: Start accepts. Automaton has 6672 states and 7710 transitions. Word has length 400 [2023-12-22 13:46:05,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 13:46:05,079 INFO L495 AbstractCegarLoop]: Abstraction has 6672 states and 7710 transitions. [2023-12-22 13:46:05,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 102.42857142857143) internal successors, (717), 6 states have internal predecessors, (717), 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) [2023-12-22 13:46:05,080 INFO L276 IsEmpty]: Start isEmpty. Operand 6672 states and 7710 transitions. [2023-12-22 13:46:05,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2023-12-22 13:46:05,083 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 13:46:05,084 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:46:05,092 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 [2023-12-22 13:46:05,289 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 [2023-12-22 13:46:05,290 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 13:46:05,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 13:46:05,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1214270001, now seen corresponding path program 1 times [2023-12-22 13:46:05,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 13:46:05,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [452128075] [2023-12-22 13:46:05,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 13:46:05,292 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 [2023-12-22 13:46:05,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 13:46:05,293 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) [2023-12-22 13:46:05,300 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 [2023-12-22 13:46:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 13:46:05,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 13:46:05,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 13:46:05,624 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 13:46:05,624 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 13:46:05,624 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 13:46:05,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [452128075] [2023-12-22 13:46:05,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [452128075] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 13:46:05,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 13:46:05,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 13:46:05,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504544592] [2023-12-22 13:46:05,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 13:46:05,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 13:46:05,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 13:46:05,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 13:46:05,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 13:46:05,626 INFO L87 Difference]: Start difference. First operand 6672 states and 7710 transitions. Second operand has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 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) [2023-12-22 13:46:24,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 13:46:24,374 INFO L93 Difference]: Finished difference Result 14544 states and 17204 transitions. [2023-12-22 13:46:24,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 13:46:24,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 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 446 [2023-12-22 13:46:24,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 13:46:24,404 INFO L225 Difference]: With dead ends: 14544 [2023-12-22 13:46:24,404 INFO L226 Difference]: Without dead ends: 8770 [2023-12-22 13:46:24,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 13:46:24,410 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 205 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2023-12-22 13:46:24,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 593 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 18.6s Time] [2023-12-22 13:46:24,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8770 states. [2023-12-22 13:46:24,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8770 to 8165. [2023-12-22 13:46:24,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8165 states, 8164 states have (on average 1.1400048995590397) internal successors, (9307), 8164 states have internal predecessors, (9307), 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) [2023-12-22 13:46:24,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8165 states to 8165 states and 9307 transitions. [2023-12-22 13:46:24,511 INFO L78 Accepts]: Start accepts. Automaton has 8165 states and 9307 transitions. Word has length 446 [2023-12-22 13:46:24,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 13:46:24,512 INFO L495 AbstractCegarLoop]: Abstraction has 8165 states and 9307 transitions. [2023-12-22 13:46:24,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 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) [2023-12-22 13:46:24,512 INFO L276 IsEmpty]: Start isEmpty. Operand 8165 states and 9307 transitions. [2023-12-22 13:46:24,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2023-12-22 13:46:24,515 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 13:46:24,515 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:46:24,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-22 13:46:24,720 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 [2023-12-22 13:46:24,720 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 13:46:24,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 13:46:24,721 INFO L85 PathProgramCache]: Analyzing trace with hash 447737789, now seen corresponding path program 1 times [2023-12-22 13:46:24,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 13:46:24,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [19826181] [2023-12-22 13:46:24,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 13:46:24,723 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 [2023-12-22 13:46:24,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 13:46:24,724 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 13:46:24,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 13:46:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 13:46:24,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 13:46:24,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 13:46:26,147 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 131 proven. 147 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-22 13:46:26,147 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 13:46:26,695 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-22 13:46:26,695 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 13:46:26,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [19826181] [2023-12-22 13:46:26,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [19826181] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 13:46:26,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 13:46:26,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 13:46:26,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836926953] [2023-12-22 13:46:26,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 13:46:26,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 13:46:26,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 13:46:26,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 13:46:26,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 13:46:26,697 INFO L87 Difference]: Start difference. First operand 8165 states and 9307 transitions. Second operand has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 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) [2023-12-22 13:46:53,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:46:53,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 13:46:53,509 INFO L93 Difference]: Finished difference Result 20815 states and 24037 transitions. [2023-12-22 13:46:53,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 13:46:53,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 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 508 [2023-12-22 13:46:53,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 13:46:53,540 INFO L225 Difference]: With dead ends: 20815 [2023-12-22 13:46:53,540 INFO L226 Difference]: Without dead ends: 13249 [2023-12-22 13:46:53,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1014 GetRequests, 1011 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 13:46:53,545 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 313 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time [2023-12-22 13:46:53,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 130 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 26.7s Time] [2023-12-22 13:46:53,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13249 states. [2023-12-22 13:46:53,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13249 to 10558. [2023-12-22 13:46:53,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10558 states, 10557 states have (on average 1.1644406554892488) internal successors, (12293), 10557 states have internal predecessors, (12293), 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) [2023-12-22 13:46:53,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10558 states to 10558 states and 12293 transitions. [2023-12-22 13:46:53,660 INFO L78 Accepts]: Start accepts. Automaton has 10558 states and 12293 transitions. Word has length 508 [2023-12-22 13:46:53,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 13:46:53,661 INFO L495 AbstractCegarLoop]: Abstraction has 10558 states and 12293 transitions. [2023-12-22 13:46:53,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 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) [2023-12-22 13:46:53,661 INFO L276 IsEmpty]: Start isEmpty. Operand 10558 states and 12293 transitions. [2023-12-22 13:46:53,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2023-12-22 13:46:53,664 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 13:46:53,664 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:46:53,677 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 (11)] Ended with exit code 0 [2023-12-22 13:46:53,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:46:53,876 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 13:46:53,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 13:46:53,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1334853901, now seen corresponding path program 1 times [2023-12-22 13:46:53,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 13:46:53,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898362278] [2023-12-22 13:46:53,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 13:46:53,878 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 [2023-12-22 13:46:53,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 13:46:53,879 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 13:46:53,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-22 13:46:54,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 13:46:54,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-22 13:46:54,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 13:46:58,751 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 13:46:58,751 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 13:48:03,657 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 324 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 13:48:03,657 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 13:48:03,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898362278] [2023-12-22 13:48:03,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1898362278] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 13:48:03,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 13:48:03,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-12-22 13:48:03,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911744964] [2023-12-22 13:48:03,658 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 13:48:03,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-22 13:48:03,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 13:48:03,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-22 13:48:03,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2023-12-22 13:48:03,659 INFO L87 Difference]: Start difference. First operand 10558 states and 12293 transitions. Second operand has 11 states, 11 states have (on average 91.81818181818181) internal successors, (1010), 10 states have internal predecessors, (1010), 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) [2023-12-22 13:48:19,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:48:33,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:48:34,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:48:37,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:48:39,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:48:41,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:49:05,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:49:11,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:49:16,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:49:21,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.36s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:49:27,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:49:35,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:49:39,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:49:42,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:49:54,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:50:03,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:50:11,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:50:14,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:50:19,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:50:23,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:50:29,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:50:31,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:50:34,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:50:35,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:50:41,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:50:46,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:50:49,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:50:53,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:50:55,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:50:58,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:50:59,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:51:04,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:51:10,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:51:21,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:51:25,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:51:26,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:51:29,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:51:34,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:51:36,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:51:42,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:51:45,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:51:49,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:51:58,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-22 13:52:00,527 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 [2023-12-22 13:52:00,527 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 (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 13:52:01,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-22 13:52:01,728 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-22 13:52:01,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1028 GetRequests, 1011 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2023-12-22 13:52:01,746 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 1688 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 8728 mSolverCounterSat, 424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 213.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1688 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 9153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 424 IncrementalHoareTripleChecker+Valid, 8728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 233.4s IncrementalHoareTripleChecker+Time [2023-12-22 13:52:01,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1688 Valid, 229 Invalid, 9153 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [424 Valid, 8728 Invalid, 0 Unknown, 0 Unchecked, 233.4s Time] [2023-12-22 13:52:01,747 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 13:52:01,747 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-22 13:52:01,751 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:52:01,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-22 13:52:01,754 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 13:52:01,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 01:52:01 BoogieIcfgContainer [2023-12-22 13:52:01,756 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 13:52:01,756 INFO L158 Benchmark]: Toolchain (without parser) took 876539.51ms. Allocated memory was 290.5MB in the beginning and 402.7MB in the end (delta: 112.2MB). Free memory was 233.0MB in the beginning and 279.6MB in the end (delta: -46.7MB). Peak memory consumption was 261.8MB. Max. memory is 8.0GB. [2023-12-22 13:52:01,756 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 200.3MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 13:52:01,756 INFO L158 Benchmark]: CACSL2BoogieTranslator took 810.52ms. Allocated memory is still 290.5MB. Free memory was 232.5MB in the beginning and 216.6MB in the end (delta: 15.8MB). Peak memory consumption was 81.9MB. Max. memory is 8.0GB. [2023-12-22 13:52:01,757 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.11ms. Allocated memory is still 290.5MB. Free memory was 216.6MB in the beginning and 201.7MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-22 13:52:01,757 INFO L158 Benchmark]: Boogie Preprocessor took 151.11ms. Allocated memory is still 290.5MB. Free memory was 201.7MB in the beginning and 184.0MB in the end (delta: 17.7MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-22 13:52:01,757 INFO L158 Benchmark]: RCFGBuilder took 14190.02ms. Allocated memory was 290.5MB in the beginning and 402.7MB in the end (delta: 112.2MB). Free memory was 184.0MB in the beginning and 170.4MB in the end (delta: 13.6MB). Peak memory consumption was 125.4MB. Max. memory is 8.0GB. [2023-12-22 13:52:01,757 INFO L158 Benchmark]: TraceAbstraction took 861296.54ms. Allocated memory is still 402.7MB. Free memory was 169.8MB in the beginning and 279.6MB in the end (delta: -109.8MB). Peak memory consumption was 84.9MB. Max. memory is 8.0GB. [2023-12-22 13:52:01,758 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 200.3MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 810.52ms. Allocated memory is still 290.5MB. Free memory was 232.5MB in the beginning and 216.6MB in the end (delta: 15.8MB). Peak memory consumption was 81.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 85.11ms. Allocated memory is still 290.5MB. Free memory was 216.6MB in the beginning and 201.7MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 151.11ms. Allocated memory is still 290.5MB. Free memory was 201.7MB in the beginning and 184.0MB in the end (delta: 17.7MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * RCFGBuilder took 14190.02ms. Allocated memory was 290.5MB in the beginning and 402.7MB in the end (delta: 112.2MB). Free memory was 184.0MB in the beginning and 170.4MB in the end (delta: 13.6MB). Peak memory consumption was 125.4MB. Max. memory is 8.0GB. * TraceAbstraction took 861296.54ms. Allocated memory is still 402.7MB. Free memory was 169.8MB in the beginning and 279.6MB in the end (delta: -109.8MB). Peak memory consumption was 84.9MB. 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: 155]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 155). Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 362 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 861.2s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 724.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7640 SdHoareTripleChecker+Valid, 717.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7640 mSDsluCounter, 3646 SdHoareTripleChecker+Invalid, 650.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 859 mSDsCounter, 3419 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25347 IncrementalHoareTripleChecker+Invalid, 28767 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3419 mSolverCounterUnsat, 2787 mSDtfsCounter, 25347 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4961 GetRequests, 4915 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10558occurred in iteration=10, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 5147 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 132.9s InterpolantComputationTime, 3019 NumberOfCodeBlocks, 3019 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 4946 ConstructedInterpolants, 0 QuantifiedInterpolants, 44157 SizeOfPredicates, 8 NumberOfNonLiveVariables, 3492 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 1685/2720 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