/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/recursive/recHanoi03-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 06:06:00,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 06:06:00,992 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 06:06:00,995 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 06:06:00,995 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 06:06:01,026 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 06:06:01,027 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 06:06:01,027 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 06:06:01,027 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 06:06:01,031 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 06:06:01,031 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 06:06:01,031 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 06:06:01,032 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 06:06:01,033 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 06:06:01,033 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 06:06:01,033 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 06:06:01,034 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 06:06:01,034 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 06:06:01,034 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 06:06:01,034 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 06:06:01,034 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 06:06:01,035 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 06:06:01,035 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 06:06:01,035 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 06:06:01,035 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 06:06:01,035 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 06:06:01,035 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 06:06:01,036 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 06:06:01,036 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 06:06:01,036 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 06:06:01,037 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 06:06:01,037 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 06:06:01,037 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 06:06:01,037 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 06:06:01,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 06:06:01,037 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 06:06:01,037 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 06:06:01,037 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 06:06:01,038 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 06:06:01,038 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 06:06:01,038 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 06:06:01,038 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 06:06:01,038 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 06:06:01,038 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 06:06:01,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 06:06:01,039 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 06:06:01,039 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 06:06:01,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 06:06:01,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 06:06:01,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 06:06:01,272 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 06:06:01,273 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 06:06:01,274 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/recHanoi03-2.c [2023-12-25 06:06:02,401 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 06:06:02,565 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 06:06:02,566 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/recHanoi03-2.c [2023-12-25 06:06:02,572 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ca4684c4/95630ec854db4506bdcfbbbcb79c5fa3/FLAG43ceaaf9b [2023-12-25 06:06:02,586 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ca4684c4/95630ec854db4506bdcfbbbcb79c5fa3 [2023-12-25 06:06:02,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 06:06:02,589 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 06:06:02,591 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 06:06:02,591 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 06:06:02,595 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 06:06:02,596 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 06:06:02" (1/1) ... [2023-12-25 06:06:02,596 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f50c545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:06:02, skipping insertion in model container [2023-12-25 06:06:02,596 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 06:06:02" (1/1) ... [2023-12-25 06:06:02,612 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 06:06:02,729 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive/recHanoi03-2.c[769,782] [2023-12-25 06:06:02,732 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 06:06:02,741 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 06:06:02,752 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive/recHanoi03-2.c[769,782] [2023-12-25 06:06:02,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 06:06:02,763 INFO L206 MainTranslator]: Completed translation [2023-12-25 06:06:02,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:06:02 WrapperNode [2023-12-25 06:06:02,763 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 06:06:02,764 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 06:06:02,764 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 06:06:02,764 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 06:06:02,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:06:02" (1/1) ... [2023-12-25 06:06:02,774 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:06:02" (1/1) ... [2023-12-25 06:06:02,789 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2023-12-25 06:06:02,790 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 06:06:02,791 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 06:06:02,791 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 06:06:02,791 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 06:06:02,797 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:06:02" (1/1) ... [2023-12-25 06:06:02,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:06:02" (1/1) ... [2023-12-25 06:06:02,799 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:06:02" (1/1) ... [2023-12-25 06:06:02,805 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]. [2023-12-25 06:06:02,806 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:06:02" (1/1) ... [2023-12-25 06:06:02,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:06:02" (1/1) ... [2023-12-25 06:06:02,808 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:06:02" (1/1) ... [2023-12-25 06:06:02,810 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:06:02" (1/1) ... [2023-12-25 06:06:02,810 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:06:02" (1/1) ... [2023-12-25 06:06:02,811 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:06:02" (1/1) ... [2023-12-25 06:06:02,812 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 06:06:02,813 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 06:06:02,813 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 06:06:02,813 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 06:06:02,813 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:06:02" (1/1) ... [2023-12-25 06:06:02,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 06:06:02,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 06:06:02,842 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) [2023-12-25 06:06:02,855 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 [2023-12-25 06:06:02,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 06:06:02,872 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2023-12-25 06:06:02,872 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2023-12-25 06:06:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 06:06:02,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 06:06:02,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 06:06:02,965 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 06:06:02,967 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 06:06:03,122 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 06:06:03,172 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 06:06:03,172 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-25 06:06:03,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 06:06:03 BoogieIcfgContainer [2023-12-25 06:06:03,173 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 06:06:03,175 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 06:06:03,175 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 06:06:03,193 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 06:06:03,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 06:06:02" (1/3) ... [2023-12-25 06:06:03,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abb0b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 06:06:03, skipping insertion in model container [2023-12-25 06:06:03,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:06:02" (2/3) ... [2023-12-25 06:06:03,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abb0b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 06:06:03, skipping insertion in model container [2023-12-25 06:06:03,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 06:06:03" (3/3) ... [2023-12-25 06:06:03,197 INFO L112 eAbstractionObserver]: Analyzing ICFG recHanoi03-2.c [2023-12-25 06:06:03,220 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 06:06:03,221 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 06:06:03,283 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 06:06:03,302 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;@79a37f39, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 06:06:03,303 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 06:06:03,305 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-25 06:06:03,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-25 06:06:03,320 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:06:03,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:06:03,321 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:06:03,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:06:03,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1546859687, now seen corresponding path program 1 times [2023-12-25 06:06:03,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:06:03,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1652589789] [2023-12-25 06:06:03,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:06:03,338 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 [2023-12-25 06:06:03,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:06:03,341 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) [2023-12-25 06:06:03,346 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 [2023-12-25 06:06:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:06:03,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 06:06:03,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:06:03,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 06:06:03,593 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:06:03,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:06:03,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1652589789] [2023-12-25 06:06:03,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1652589789] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:06:03,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:06:03,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 06:06:03,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258143958] [2023-12-25 06:06:03,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:06:03,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 06:06:03,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:06:03,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 06:06:03,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-25 06:06:03,630 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-25 06:06:03,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:06:03,714 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2023-12-25 06:06:03,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 06:06:03,716 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2023-12-25 06:06:03,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:06:03,722 INFO L225 Difference]: With dead ends: 25 [2023-12-25 06:06:03,722 INFO L226 Difference]: Without dead ends: 15 [2023-12-25 06:06:03,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-25 06:06:03,729 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 11 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 06:06:03,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 21 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 06:06:03,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-12-25 06:06:03,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-12-25 06:06:03,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 11 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-25 06:06:03,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2023-12-25 06:06:03,759 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2023-12-25 06:06:03,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:06:03,760 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2023-12-25 06:06:03,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-25 06:06:03,760 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2023-12-25 06:06:03,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-25 06:06:03,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:06:03,762 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:06:03,767 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 [2023-12-25 06:06:03,966 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 [2023-12-25 06:06:03,966 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:06:03,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:06:03,967 INFO L85 PathProgramCache]: Analyzing trace with hash -797183849, now seen corresponding path program 1 times [2023-12-25 06:06:03,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:06:03,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1390222772] [2023-12-25 06:06:03,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:06:03,968 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 [2023-12-25 06:06:03,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:06:03,981 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) [2023-12-25 06:06:03,995 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 [2023-12-25 06:06:04,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:06:04,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 06:06:04,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:06:04,130 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 06:06:04,130 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:06:04,386 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-25 06:06:04,387 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:06:04,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1390222772] [2023-12-25 06:06:04,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1390222772] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:06:04,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:06:04,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-25 06:06:04,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670041974] [2023-12-25 06:06:04,387 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:06:04,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 06:06:04,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:06:04,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 06:06:04,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2023-12-25 06:06:04,390 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 16 states, 15 states have (on average 1.4) internal successors, (21), 12 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-25 06:06:04,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:06:04,597 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2023-12-25 06:06:04,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 06:06:04,598 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.4) internal successors, (21), 12 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 16 [2023-12-25 06:06:04,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:06:04,599 INFO L225 Difference]: With dead ends: 27 [2023-12-25 06:06:04,599 INFO L226 Difference]: Without dead ends: 21 [2023-12-25 06:06:04,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2023-12-25 06:06:04,600 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 18 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 06:06:04,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 41 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 06:06:04,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-12-25 06:06:04,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-12-25 06:06:04,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 15 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-25 06:06:04,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2023-12-25 06:06:04,604 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 16 [2023-12-25 06:06:04,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:06:04,604 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2023-12-25 06:06:04,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.4) internal successors, (21), 12 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-25 06:06:04,605 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2023-12-25 06:06:04,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-25 06:06:04,605 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:06:04,605 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:06:04,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 06:06:04,809 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 [2023-12-25 06:06:04,811 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:06:04,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:06:04,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1671831511, now seen corresponding path program 2 times [2023-12-25 06:06:04,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:06:04,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130343841] [2023-12-25 06:06:04,815 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 06:06:04,815 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 [2023-12-25 06:06:04,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:06:04,819 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) [2023-12-25 06:06:04,821 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 [2023-12-25 06:06:04,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 06:06:04,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:06:04,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-25 06:06:04,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:06:05,046 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-25 06:06:05,046 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:06:05,713 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 06:06:05,714 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:06:05,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130343841] [2023-12-25 06:06:05,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130343841] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:06:05,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:06:05,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 26 [2023-12-25 06:06:05,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462325936] [2023-12-25 06:06:05,723 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:06:05,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 06:06:05,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:06:05,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 06:06:05,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=569, Unknown=0, NotChecked=0, Total=650 [2023-12-25 06:06:05,726 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 18 states have internal predecessors, (33), 6 states have call successors, (6), 1 states have call predecessors, (6), 8 states have return successors, (8), 8 states have call predecessors, (8), 6 states have call successors, (8) [2023-12-25 06:06:06,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:06:06,083 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2023-12-25 06:06:06,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 06:06:06,084 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.32) internal successors, (33), 18 states have internal predecessors, (33), 6 states have call successors, (6), 1 states have call predecessors, (6), 8 states have return successors, (8), 8 states have call predecessors, (8), 6 states have call successors, (8) Word has length 28 [2023-12-25 06:06:06,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:06:06,085 INFO L225 Difference]: With dead ends: 33 [2023-12-25 06:06:06,085 INFO L226 Difference]: Without dead ends: 27 [2023-12-25 06:06:06,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=182, Invalid=1150, Unknown=0, NotChecked=0, Total=1332 [2023-12-25 06:06:06,086 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 26 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 06:06:06,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 101 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 06:06:06,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-12-25 06:06:06,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-12-25 06:06:06,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 19 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (7), 6 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 06:06:06,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2023-12-25 06:06:06,090 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 28 [2023-12-25 06:06:06,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:06:06,091 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2023-12-25 06:06:06,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.32) internal successors, (33), 18 states have internal predecessors, (33), 6 states have call successors, (6), 1 states have call predecessors, (6), 8 states have return successors, (8), 8 states have call predecessors, (8), 6 states have call successors, (8) [2023-12-25 06:06:06,091 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2023-12-25 06:06:06,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-25 06:06:06,092 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:06:06,092 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:06:06,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 06:06:06,294 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 [2023-12-25 06:06:06,294 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:06:06,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:06:06,295 INFO L85 PathProgramCache]: Analyzing trace with hash -695406825, now seen corresponding path program 3 times [2023-12-25 06:06:06,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:06:06,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1075761667] [2023-12-25 06:06:06,296 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-25 06:06:06,296 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 [2023-12-25 06:06:06,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:06:06,297 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) [2023-12-25 06:06:06,319 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 [2023-12-25 06:06:06,328 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-12-25 06:06:06,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:06:06,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-25 06:06:06,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:06:06,606 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-25 06:06:06,607 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:06:08,208 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-25 06:06:08,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:06:08,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1075761667] [2023-12-25 06:06:08,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1075761667] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:06:08,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:06:08,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 21] total 36 [2023-12-25 06:06:08,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352398473] [2023-12-25 06:06:08,209 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:06:08,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-25 06:06:08,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:06:08,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-25 06:06:08,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1141, Unknown=0, NotChecked=0, Total=1260 [2023-12-25 06:06:08,211 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 36 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 24 states have internal predecessors, (45), 8 states have call successors, (8), 1 states have call predecessors, (8), 12 states have return successors, (12), 12 states have call predecessors, (12), 8 states have call successors, (12) [2023-12-25 06:06:08,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:06:08,930 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2023-12-25 06:06:08,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-25 06:06:08,931 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 24 states have internal predecessors, (45), 8 states have call successors, (8), 1 states have call predecessors, (8), 12 states have return successors, (12), 12 states have call predecessors, (12), 8 states have call successors, (12) Word has length 40 [2023-12-25 06:06:08,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:06:08,931 INFO L225 Difference]: With dead ends: 40 [2023-12-25 06:06:08,932 INFO L226 Difference]: Without dead ends: 34 [2023-12-25 06:06:08,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=290, Invalid=2260, Unknown=0, NotChecked=0, Total=2550 [2023-12-25 06:06:08,933 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 34 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 06:06:08,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 164 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 06:06:08,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-12-25 06:06:08,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2023-12-25 06:06:08,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 23 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 8 states have return successors, (9), 8 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 06:06:08,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2023-12-25 06:06:08,937 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 40 [2023-12-25 06:06:08,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:06:08,937 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2023-12-25 06:06:08,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 24 states have internal predecessors, (45), 8 states have call successors, (8), 1 states have call predecessors, (8), 12 states have return successors, (12), 12 states have call predecessors, (12), 8 states have call successors, (12) [2023-12-25 06:06:08,938 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2023-12-25 06:06:08,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-25 06:06:08,939 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:06:08,939 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:06:08,944 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-25 06:06:09,141 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 [2023-12-25 06:06:09,142 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:06:09,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:06:09,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1239392681, now seen corresponding path program 4 times [2023-12-25 06:06:09,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:06:09,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1613059773] [2023-12-25 06:06:09,143 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-25 06:06:09,143 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 [2023-12-25 06:06:09,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:06:09,144 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) [2023-12-25 06:06:09,145 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 [2023-12-25 06:06:09,174 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-25 06:06:09,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:06:09,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-25 06:06:09,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:06:09,448 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-12-25 06:06:09,448 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:06:10,525 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-12-25 06:06:10,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:06:10,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1613059773] [2023-12-25 06:06:10,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1613059773] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:06:10,526 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:06:10,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2023-12-25 06:06:10,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774571045] [2023-12-25 06:06:10,526 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:06:10,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-12-25 06:06:10,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:06:10,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-12-25 06:06:10,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=1262, Unknown=0, NotChecked=0, Total=1406 [2023-12-25 06:06:10,531 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 38 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 22 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 16 states have return successors, (16), 16 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 06:06:11,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:06:11,437 INFO L93 Difference]: Finished difference Result 63 states and 71 transitions. [2023-12-25 06:06:11,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-25 06:06:11,437 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 22 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 16 states have return successors, (16), 16 states have call predecessors, (16), 3 states have call successors, (16) Word has length 52 [2023-12-25 06:06:11,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:06:11,438 INFO L225 Difference]: With dead ends: 63 [2023-12-25 06:06:11,438 INFO L226 Difference]: Without dead ends: 57 [2023-12-25 06:06:11,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=276, Invalid=2376, Unknown=0, NotChecked=0, Total=2652 [2023-12-25 06:06:11,440 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 4 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 06:06:11,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 478 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 06:06:11,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-12-25 06:06:11,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-12-25 06:06:11,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 38 states have (on average 1.0263157894736843) internal successors, (39), 39 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 16 states have return successors, (17), 16 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 06:06:11,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2023-12-25 06:06:11,446 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 52 [2023-12-25 06:06:11,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:06:11,446 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2023-12-25 06:06:11,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 22 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 16 states have return successors, (16), 16 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 06:06:11,446 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2023-12-25 06:06:11,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-25 06:06:11,448 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:06:11,448 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:06:11,450 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 [2023-12-25 06:06:11,650 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 [2023-12-25 06:06:11,650 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:06:11,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:06:11,651 INFO L85 PathProgramCache]: Analyzing trace with hash -974365865, now seen corresponding path program 5 times [2023-12-25 06:06:11,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:06:11,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333657713] [2023-12-25 06:06:11,651 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-25 06:06:11,652 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 [2023-12-25 06:06:11,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:06:11,653 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) [2023-12-25 06:06:11,668 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 [2023-12-25 06:06:11,714 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2023-12-25 06:06:11,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:06:11,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-25 06:06:11,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:06:12,526 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2023-12-25 06:06:12,527 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:06:15,136 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2023-12-25 06:06:15,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:06:15,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333657713] [2023-12-25 06:06:15,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1333657713] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:06:15,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:06:15,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 70 [2023-12-25 06:06:15,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696351410] [2023-12-25 06:06:15,138 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:06:15,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2023-12-25 06:06:15,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:06:15,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2023-12-25 06:06:15,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=400, Invalid=4430, Unknown=0, NotChecked=0, Total=4830 [2023-12-25 06:06:15,141 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand has 70 states, 68 states have (on average 1.088235294117647) internal successors, (74), 38 states have internal predecessors, (74), 3 states have call successors, (3), 1 states have call predecessors, (3), 32 states have return successors, (32), 32 states have call predecessors, (32), 3 states have call successors, (32) [2023-12-25 06:06:20,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:06:20,139 INFO L93 Difference]: Finished difference Result 111 states and 127 transitions. [2023-12-25 06:06:20,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-12-25 06:06:20,139 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 68 states have (on average 1.088235294117647) internal successors, (74), 38 states have internal predecessors, (74), 3 states have call successors, (3), 1 states have call predecessors, (3), 32 states have return successors, (32), 32 states have call predecessors, (32), 3 states have call successors, (32) Word has length 100 [2023-12-25 06:06:20,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:06:20,141 INFO L225 Difference]: With dead ends: 111 [2023-12-25 06:06:20,141 INFO L226 Difference]: Without dead ends: 105 [2023-12-25 06:06:20,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 895 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=916, Invalid=8984, Unknown=0, NotChecked=0, Total=9900 [2023-12-25 06:06:20,145 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 8 mSDsluCounter, 1303 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 06:06:20,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 1343 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1001 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 06:06:20,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-12-25 06:06:20,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2023-12-25 06:06:20,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 71 states have internal predecessors, (71), 2 states have call successors, (2), 1 states have call predecessors, (2), 32 states have return successors, (33), 32 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-25 06:06:20,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 106 transitions. [2023-12-25 06:06:20,154 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 106 transitions. Word has length 100 [2023-12-25 06:06:20,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:06:20,155 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 106 transitions. [2023-12-25 06:06:20,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 68 states have (on average 1.088235294117647) internal successors, (74), 38 states have internal predecessors, (74), 3 states have call successors, (3), 1 states have call predecessors, (3), 32 states have return successors, (32), 32 states have call predecessors, (32), 3 states have call successors, (32) [2023-12-25 06:06:20,155 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 106 transitions. [2023-12-25 06:06:20,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-12-25 06:06:20,157 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:06:20,157 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:06:20,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-25 06:06:20,359 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 [2023-12-25 06:06:20,360 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:06:20,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:06:20,361 INFO L85 PathProgramCache]: Analyzing trace with hash -488483497, now seen corresponding path program 6 times [2023-12-25 06:06:20,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:06:20,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [306787024] [2023-12-25 06:06:20,362 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-25 06:06:20,362 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 [2023-12-25 06:06:20,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:06:20,363 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) [2023-12-25 06:06:20,364 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 [2023-12-25 06:06:20,532 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 32 check-sat command(s) [2023-12-25 06:06:20,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:06:20,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 67 conjunts are in the unsatisfiable core [2023-12-25 06:06:20,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:06:21,042 INFO L134 CoverageAnalysis]: Checked inductivity of 2914 backedges. 0 proven. 1457 refuted. 0 times theorem prover too weak. 1457 trivial. 0 not checked. [2023-12-25 06:06:21,042 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:06:29,891 INFO L134 CoverageAnalysis]: Checked inductivity of 2914 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-25 06:06:29,892 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:06:29,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [306787024] [2023-12-25 06:06:29,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [306787024] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:06:29,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:06:29,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 67] total 69 [2023-12-25 06:06:29,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081554174] [2023-12-25 06:06:29,892 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:06:29,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2023-12-25 06:06:29,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:06:29,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2023-12-25 06:06:29,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=4492, Unknown=0, NotChecked=0, Total=4692 [2023-12-25 06:06:29,896 INFO L87 Difference]: Start difference. First operand 105 states and 106 transitions. Second operand has 69 states, 67 states have (on average 2.029850746268657) internal successors, (136), 69 states have internal predecessors, (136), 34 states have call successors, (34), 1 states have call predecessors, (34), 32 states have return successors, (64), 32 states have call predecessors, (64), 34 states have call successors, (64) [2023-12-25 06:06:31,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:06:31,276 INFO L93 Difference]: Finished difference Result 112 states and 113 transitions. [2023-12-25 06:06:31,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-25 06:06:31,277 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 67 states have (on average 2.029850746268657) internal successors, (136), 69 states have internal predecessors, (136), 34 states have call successors, (34), 1 states have call predecessors, (34), 32 states have return successors, (64), 32 states have call predecessors, (64), 34 states have call successors, (64) Word has length 196 [2023-12-25 06:06:31,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:06:31,278 INFO L225 Difference]: With dead ends: 112 [2023-12-25 06:06:31,279 INFO L226 Difference]: Without dead ends: 108 [2023-12-25 06:06:31,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1024 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1352, Invalid=8748, Unknown=0, NotChecked=0, Total=10100 [2023-12-25 06:06:31,281 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 1605 mSDsluCounter, 2212 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 769 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1639 SdHoareTripleChecker+Valid, 2281 SdHoareTripleChecker+Invalid, 2181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 769 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 06:06:31,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1639 Valid, 2281 Invalid, 2181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [769 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 06:06:31,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-12-25 06:06:31,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2023-12-25 06:06:31,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 72 states have (on average 1.0138888888888888) internal successors, (73), 73 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 33 states have return successors, (34), 33 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-25 06:06:31,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 109 transitions. [2023-12-25 06:06:31,288 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 109 transitions. Word has length 196 [2023-12-25 06:06:31,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:06:31,289 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 109 transitions. [2023-12-25 06:06:31,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 67 states have (on average 2.029850746268657) internal successors, (136), 69 states have internal predecessors, (136), 34 states have call successors, (34), 1 states have call predecessors, (34), 32 states have return successors, (64), 32 states have call predecessors, (64), 34 states have call successors, (64) [2023-12-25 06:06:31,289 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 109 transitions. [2023-12-25 06:06:31,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2023-12-25 06:06:31,291 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:06:31,291 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:06:31,298 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 (8)] Ended with exit code 0 [2023-12-25 06:06:31,499 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 [2023-12-25 06:06:31,499 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:06:31,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:06:31,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1526458535, now seen corresponding path program 7 times [2023-12-25 06:06:31,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:06:31,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1699597650] [2023-12-25 06:06:31,500 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-25 06:06:31,500 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 [2023-12-25 06:06:31,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:06:31,502 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) [2023-12-25 06:06:31,503 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 [2023-12-25 06:06:31,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:06:31,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 69 conjunts are in the unsatisfiable core [2023-12-25 06:06:31,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:06:32,336 INFO L134 CoverageAnalysis]: Checked inductivity of 3104 backedges. 0 proven. 1552 refuted. 0 times theorem prover too weak. 1552 trivial. 0 not checked. [2023-12-25 06:06:32,337 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:06:41,793 INFO L134 CoverageAnalysis]: Checked inductivity of 3104 backedges. 0 proven. 2576 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2023-12-25 06:06:41,793 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:06:41,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1699597650] [2023-12-25 06:06:41,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1699597650] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:06:41,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:06:41,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 69] total 71 [2023-12-25 06:06:41,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305257327] [2023-12-25 06:06:41,794 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:06:41,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2023-12-25 06:06:41,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:06:41,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2023-12-25 06:06:41,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=4764, Unknown=0, NotChecked=0, Total=4970 [2023-12-25 06:06:41,796 INFO L87 Difference]: Start difference. First operand 108 states and 109 transitions. Second operand has 71 states, 69 states have (on average 2.028985507246377) internal successors, (140), 71 states have internal predecessors, (140), 35 states have call successors, (35), 1 states have call predecessors, (35), 33 states have return successors, (66), 33 states have call predecessors, (66), 35 states have call successors, (66) [2023-12-25 06:06:43,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:06:43,153 INFO L93 Difference]: Finished difference Result 115 states and 116 transitions. [2023-12-25 06:06:43,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-12-25 06:06:43,154 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 69 states have (on average 2.028985507246377) internal successors, (140), 71 states have internal predecessors, (140), 35 states have call successors, (35), 1 states have call predecessors, (35), 33 states have return successors, (66), 33 states have call predecessors, (66), 35 states have call successors, (66) Word has length 202 [2023-12-25 06:06:43,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:06:43,155 INFO L225 Difference]: With dead ends: 115 [2023-12-25 06:06:43,156 INFO L226 Difference]: Without dead ends: 111 [2023-12-25 06:06:43,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1089 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1427, Invalid=9285, Unknown=0, NotChecked=0, Total=10712 [2023-12-25 06:06:43,158 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 1064 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 496 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 2380 SdHoareTripleChecker+Invalid, 1996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 496 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 06:06:43,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1099 Valid, 2380 Invalid, 1996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [496 Valid, 1500 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 06:06:43,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-12-25 06:06:43,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-12-25 06:06:43,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 74 states have (on average 1.0135135135135136) internal successors, (75), 75 states have internal predecessors, (75), 2 states have call successors, (2), 1 states have call predecessors, (2), 34 states have return successors, (35), 34 states have call predecessors, (35), 2 states have call successors, (35) [2023-12-25 06:06:43,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 112 transitions. [2023-12-25 06:06:43,165 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 112 transitions. Word has length 202 [2023-12-25 06:06:43,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:06:43,165 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 112 transitions. [2023-12-25 06:06:43,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 69 states have (on average 2.028985507246377) internal successors, (140), 71 states have internal predecessors, (140), 35 states have call successors, (35), 1 states have call predecessors, (35), 33 states have return successors, (66), 33 states have call predecessors, (66), 35 states have call successors, (66) [2023-12-25 06:06:43,166 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 112 transitions. [2023-12-25 06:06:43,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-12-25 06:06:43,167 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:06:43,168 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:06:43,174 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-25 06:06:43,372 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 [2023-12-25 06:06:43,372 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:06:43,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:06:43,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1888085143, now seen corresponding path program 8 times [2023-12-25 06:06:43,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:06:43,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [548690677] [2023-12-25 06:06:43,373 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 06:06:43,373 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 [2023-12-25 06:06:43,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:06:43,374 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) [2023-12-25 06:06:43,375 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 [2023-12-25 06:06:43,565 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 06:06:43,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:06:43,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 71 conjunts are in the unsatisfiable core [2023-12-25 06:06:43,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:06:44,280 INFO L134 CoverageAnalysis]: Checked inductivity of 3300 backedges. 0 proven. 1650 refuted. 0 times theorem prover too weak. 1650 trivial. 0 not checked. [2023-12-25 06:06:44,280 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:06:53,212 INFO L134 CoverageAnalysis]: Checked inductivity of 3300 backedges. 0 proven. 2739 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-12-25 06:06:53,212 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:06:53,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [548690677] [2023-12-25 06:06:53,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [548690677] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:06:53,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:06:53,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 71] total 73 [2023-12-25 06:06:53,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799447336] [2023-12-25 06:06:53,212 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:06:53,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2023-12-25 06:06:53,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:06:53,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2023-12-25 06:06:53,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=5044, Unknown=0, NotChecked=0, Total=5256 [2023-12-25 06:06:53,215 INFO L87 Difference]: Start difference. First operand 111 states and 112 transitions. Second operand has 73 states, 71 states have (on average 2.028169014084507) internal successors, (144), 73 states have internal predecessors, (144), 36 states have call successors, (36), 1 states have call predecessors, (36), 34 states have return successors, (68), 34 states have call predecessors, (68), 36 states have call successors, (68) [2023-12-25 06:06:54,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:06:54,765 INFO L93 Difference]: Finished difference Result 118 states and 119 transitions. [2023-12-25 06:06:54,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-25 06:06:54,766 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 71 states have (on average 2.028169014084507) internal successors, (144), 73 states have internal predecessors, (144), 36 states have call successors, (36), 1 states have call predecessors, (36), 34 states have return successors, (68), 34 states have call predecessors, (68), 36 states have call successors, (68) Word has length 208 [2023-12-25 06:06:54,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:06:54,767 INFO L225 Difference]: With dead ends: 118 [2023-12-25 06:06:54,767 INFO L226 Difference]: Without dead ends: 114 [2023-12-25 06:06:54,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1156 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1504, Invalid=9838, Unknown=0, NotChecked=0, Total=11342 [2023-12-25 06:06:54,773 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 1844 mSDsluCounter, 2427 mSDsCounter, 0 mSdLazyCounter, 1546 mSolverCounterSat, 885 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1880 SdHoareTripleChecker+Valid, 2500 SdHoareTripleChecker+Invalid, 2431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 885 IncrementalHoareTripleChecker+Valid, 1546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 06:06:54,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1880 Valid, 2500 Invalid, 2431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [885 Valid, 1546 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 06:06:54,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-12-25 06:06:54,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2023-12-25 06:06:54,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 76 states have (on average 1.013157894736842) internal successors, (77), 77 states have internal predecessors, (77), 2 states have call successors, (2), 1 states have call predecessors, (2), 35 states have return successors, (36), 35 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-25 06:06:54,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 115 transitions. [2023-12-25 06:06:54,793 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 115 transitions. Word has length 208 [2023-12-25 06:06:54,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:06:54,793 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 115 transitions. [2023-12-25 06:06:54,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 71 states have (on average 2.028169014084507) internal successors, (144), 73 states have internal predecessors, (144), 36 states have call successors, (36), 1 states have call predecessors, (36), 34 states have return successors, (68), 34 states have call predecessors, (68), 36 states have call successors, (68) [2023-12-25 06:06:54,793 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 115 transitions. [2023-12-25 06:06:54,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-12-25 06:06:54,795 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:06:54,795 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:06:54,808 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 [2023-12-25 06:06:55,000 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 [2023-12-25 06:06:55,001 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:06:55,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:06:55,001 INFO L85 PathProgramCache]: Analyzing trace with hash -80657433, now seen corresponding path program 9 times [2023-12-25 06:06:55,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:06:55,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1582874325] [2023-12-25 06:06:55,002 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-25 06:06:55,002 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 [2023-12-25 06:06:55,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:06:55,006 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) [2023-12-25 06:06:55,007 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 [2023-12-25 06:06:55,438 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 35 check-sat command(s) [2023-12-25 06:06:55,439 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:06:55,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 73 conjunts are in the unsatisfiable core [2023-12-25 06:06:55,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:06:56,161 INFO L134 CoverageAnalysis]: Checked inductivity of 3502 backedges. 0 proven. 1751 refuted. 0 times theorem prover too weak. 1751 trivial. 0 not checked. [2023-12-25 06:06:56,162 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:07:05,348 INFO L134 CoverageAnalysis]: Checked inductivity of 3502 backedges. 0 proven. 2907 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2023-12-25 06:07:05,349 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:07:05,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1582874325] [2023-12-25 06:07:05,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1582874325] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:07:05,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:07:05,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 73] total 75 [2023-12-25 06:07:05,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677951277] [2023-12-25 06:07:05,349 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:07:05,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2023-12-25 06:07:05,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:07:05,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2023-12-25 06:07:05,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=5332, Unknown=0, NotChecked=0, Total=5550 [2023-12-25 06:07:05,351 INFO L87 Difference]: Start difference. First operand 114 states and 115 transitions. Second operand has 75 states, 73 states have (on average 2.0273972602739727) internal successors, (148), 75 states have internal predecessors, (148), 37 states have call successors, (37), 1 states have call predecessors, (37), 35 states have return successors, (70), 35 states have call predecessors, (70), 37 states have call successors, (70) [2023-12-25 06:07:06,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:07:06,802 INFO L93 Difference]: Finished difference Result 121 states and 122 transitions. [2023-12-25 06:07:06,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-12-25 06:07:06,803 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 73 states have (on average 2.0273972602739727) internal successors, (148), 75 states have internal predecessors, (148), 37 states have call successors, (37), 1 states have call predecessors, (37), 35 states have return successors, (70), 35 states have call predecessors, (70), 37 states have call successors, (70) Word has length 214 [2023-12-25 06:07:06,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:07:06,804 INFO L225 Difference]: With dead ends: 121 [2023-12-25 06:07:06,804 INFO L226 Difference]: Without dead ends: 117 [2023-12-25 06:07:06,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1225 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1583, Invalid=10407, Unknown=0, NotChecked=0, Total=11990 [2023-12-25 06:07:06,806 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 2105 mSDsluCounter, 2653 mSDsCounter, 0 mSdLazyCounter, 1688 mSolverCounterSat, 1016 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2142 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 2704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1016 IncrementalHoareTripleChecker+Valid, 1688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 06:07:06,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2142 Valid, 2728 Invalid, 2704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1016 Valid, 1688 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 06:07:06,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-12-25 06:07:06,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2023-12-25 06:07:06,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 78 states have (on average 1.0128205128205128) internal successors, (79), 79 states have internal predecessors, (79), 2 states have call successors, (2), 1 states have call predecessors, (2), 36 states have return successors, (37), 36 states have call predecessors, (37), 2 states have call successors, (37) [2023-12-25 06:07:06,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 118 transitions. [2023-12-25 06:07:06,815 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 118 transitions. Word has length 214 [2023-12-25 06:07:06,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:07:06,818 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 118 transitions. [2023-12-25 06:07:06,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 73 states have (on average 2.0273972602739727) internal successors, (148), 75 states have internal predecessors, (148), 37 states have call successors, (37), 1 states have call predecessors, (37), 35 states have return successors, (70), 35 states have call predecessors, (70), 37 states have call successors, (70) [2023-12-25 06:07:06,818 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 118 transitions. [2023-12-25 06:07:06,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-12-25 06:07:06,820 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:07:06,820 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:07:06,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 06:07:07,024 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 [2023-12-25 06:07:07,025 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:07:07,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:07:07,025 INFO L85 PathProgramCache]: Analyzing trace with hash 268309463, now seen corresponding path program 10 times [2023-12-25 06:07:07,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:07:07,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113019410] [2023-12-25 06:07:07,026 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-25 06:07:07,026 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 [2023-12-25 06:07:07,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:07:07,027 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) [2023-12-25 06:07:07,029 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 [2023-12-25 06:07:07,308 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-25 06:07:07,308 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:07:07,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 75 conjunts are in the unsatisfiable core [2023-12-25 06:07:07,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:07:08,103 INFO L134 CoverageAnalysis]: Checked inductivity of 3710 backedges. 0 proven. 1855 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-12-25 06:07:08,104 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:07:16,915 INFO L134 CoverageAnalysis]: Checked inductivity of 3710 backedges. 0 proven. 3080 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-12-25 06:07:16,916 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:07:16,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113019410] [2023-12-25 06:07:16,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113019410] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:07:16,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:07:16,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 75] total 77 [2023-12-25 06:07:16,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090223433] [2023-12-25 06:07:16,916 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:07:16,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2023-12-25 06:07:16,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:07:16,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2023-12-25 06:07:16,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=5628, Unknown=0, NotChecked=0, Total=5852 [2023-12-25 06:07:16,919 INFO L87 Difference]: Start difference. First operand 117 states and 118 transitions. Second operand has 77 states, 75 states have (on average 2.026666666666667) internal successors, (152), 77 states have internal predecessors, (152), 38 states have call successors, (38), 1 states have call predecessors, (38), 36 states have return successors, (72), 36 states have call predecessors, (72), 38 states have call successors, (72) [2023-12-25 06:07:18,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:07:18,411 INFO L93 Difference]: Finished difference Result 124 states and 125 transitions. [2023-12-25 06:07:18,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-12-25 06:07:18,412 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 75 states have (on average 2.026666666666667) internal successors, (152), 77 states have internal predecessors, (152), 38 states have call successors, (38), 1 states have call predecessors, (38), 36 states have return successors, (72), 36 states have call predecessors, (72), 38 states have call successors, (72) Word has length 220 [2023-12-25 06:07:18,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:07:18,414 INFO L225 Difference]: With dead ends: 124 [2023-12-25 06:07:18,414 INFO L226 Difference]: Without dead ends: 120 [2023-12-25 06:07:18,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1296 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1664, Invalid=10992, Unknown=0, NotChecked=0, Total=12656 [2023-12-25 06:07:18,417 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 872 mSDsluCounter, 2711 mSDsCounter, 0 mSdLazyCounter, 1704 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 2101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 397 IncrementalHoareTripleChecker+Valid, 1704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 06:07:18,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 2788 Invalid, 2101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [397 Valid, 1704 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 06:07:18,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-12-25 06:07:18,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2023-12-25 06:07:18,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 80 states have (on average 1.0125) internal successors, (81), 81 states have internal predecessors, (81), 2 states have call successors, (2), 1 states have call predecessors, (2), 37 states have return successors, (38), 37 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-25 06:07:18,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 121 transitions. [2023-12-25 06:07:18,423 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 121 transitions. Word has length 220 [2023-12-25 06:07:18,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:07:18,423 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 121 transitions. [2023-12-25 06:07:18,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 75 states have (on average 2.026666666666667) internal successors, (152), 77 states have internal predecessors, (152), 38 states have call successors, (38), 1 states have call predecessors, (38), 36 states have return successors, (72), 36 states have call predecessors, (72), 38 states have call successors, (72) [2023-12-25 06:07:18,423 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 121 transitions. [2023-12-25 06:07:18,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-12-25 06:07:18,425 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:07:18,425 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:07:18,445 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 [2023-12-25 06:07:18,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:07:18,626 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:07:18,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:07:18,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1969340633, now seen corresponding path program 11 times [2023-12-25 06:07:18,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:07:18,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751546320] [2023-12-25 06:07:18,626 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-25 06:07:18,627 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 [2023-12-25 06:07:18,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:07:18,641 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 06:07:18,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-25 06:07:19,153 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 37 check-sat command(s) [2023-12-25 06:07:19,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:07:19,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 77 conjunts are in the unsatisfiable core [2023-12-25 06:07:19,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:07:20,035 INFO L134 CoverageAnalysis]: Checked inductivity of 3924 backedges. 0 proven. 1962 refuted. 0 times theorem prover too weak. 1962 trivial. 0 not checked. [2023-12-25 06:07:20,035 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:07:29,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3924 backedges. 0 proven. 3258 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2023-12-25 06:07:29,043 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:07:29,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751546320] [2023-12-25 06:07:29,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751546320] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:07:29,043 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:07:29,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 77] total 79 [2023-12-25 06:07:29,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221052251] [2023-12-25 06:07:29,043 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:07:29,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2023-12-25 06:07:29,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:07:29,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2023-12-25 06:07:29,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=5932, Unknown=0, NotChecked=0, Total=6162 [2023-12-25 06:07:29,046 INFO L87 Difference]: Start difference. First operand 120 states and 121 transitions. Second operand has 79 states, 77 states have (on average 2.0259740259740258) internal successors, (156), 79 states have internal predecessors, (156), 39 states have call successors, (39), 1 states have call predecessors, (39), 37 states have return successors, (74), 37 states have call predecessors, (74), 39 states have call successors, (74) [2023-12-25 06:07:30,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:07:30,172 INFO L93 Difference]: Finished difference Result 127 states and 128 transitions. [2023-12-25 06:07:30,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-25 06:07:30,173 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 77 states have (on average 2.0259740259740258) internal successors, (156), 79 states have internal predecessors, (156), 39 states have call successors, (39), 1 states have call predecessors, (39), 37 states have return successors, (74), 37 states have call predecessors, (74), 39 states have call successors, (74) Word has length 226 [2023-12-25 06:07:30,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:07:30,174 INFO L225 Difference]: With dead ends: 127 [2023-12-25 06:07:30,174 INFO L226 Difference]: Without dead ends: 123 [2023-12-25 06:07:30,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1369 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1747, Invalid=11593, Unknown=0, NotChecked=0, Total=13340 [2023-12-25 06:07:30,176 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 526 mSDsluCounter, 2874 mSDsCounter, 0 mSdLazyCounter, 1811 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 2953 SdHoareTripleChecker+Invalid, 2034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 1811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 06:07:30,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 2953 Invalid, 2034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 1811 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 06:07:30,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-12-25 06:07:30,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2023-12-25 06:07:30,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 82 states have (on average 1.0121951219512195) internal successors, (83), 83 states have internal predecessors, (83), 2 states have call successors, (2), 1 states have call predecessors, (2), 38 states have return successors, (39), 38 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-25 06:07:30,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 124 transitions. [2023-12-25 06:07:30,181 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 124 transitions. Word has length 226 [2023-12-25 06:07:30,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:07:30,181 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 124 transitions. [2023-12-25 06:07:30,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 77 states have (on average 2.0259740259740258) internal successors, (156), 79 states have internal predecessors, (156), 39 states have call successors, (39), 1 states have call predecessors, (39), 37 states have return successors, (74), 37 states have call predecessors, (74), 39 states have call successors, (74) [2023-12-25 06:07:30,182 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 124 transitions. [2023-12-25 06:07:30,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-12-25 06:07:30,183 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:07:30,183 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:07:30,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-25 06:07:30,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:07:30,384 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:07:30,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:07:30,384 INFO L85 PathProgramCache]: Analyzing trace with hash -567352553, now seen corresponding path program 12 times [2023-12-25 06:07:30,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:07:30,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [582863436] [2023-12-25 06:07:30,385 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-25 06:07:30,385 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 [2023-12-25 06:07:30,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:07:30,386 INFO L229 MonitoredProcess]: Starting monitored process 14 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) [2023-12-25 06:07:30,387 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 (14)] Waiting until timeout for monitored process [2023-12-25 06:07:30,965 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 38 check-sat command(s) [2023-12-25 06:07:30,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:07:30,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 79 conjunts are in the unsatisfiable core [2023-12-25 06:07:30,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:07:31,752 INFO L134 CoverageAnalysis]: Checked inductivity of 4144 backedges. 0 proven. 2072 refuted. 0 times theorem prover too weak. 2072 trivial. 0 not checked. [2023-12-25 06:07:31,753 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:07:39,795 INFO L134 CoverageAnalysis]: Checked inductivity of 4144 backedges. 0 proven. 3441 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-25 06:07:39,796 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:07:39,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [582863436] [2023-12-25 06:07:39,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [582863436] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:07:39,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:07:39,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 79] total 81 [2023-12-25 06:07:39,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237587635] [2023-12-25 06:07:39,796 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:07:39,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2023-12-25 06:07:39,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:07:39,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2023-12-25 06:07:39,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=6244, Unknown=0, NotChecked=0, Total=6480 [2023-12-25 06:07:39,800 INFO L87 Difference]: Start difference. First operand 123 states and 124 transitions. Second operand has 81 states, 79 states have (on average 2.0253164556962027) internal successors, (160), 81 states have internal predecessors, (160), 40 states have call successors, (40), 1 states have call predecessors, (40), 38 states have return successors, (76), 38 states have call predecessors, (76), 40 states have call successors, (76) [2023-12-25 06:07:41,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:07:41,012 INFO L93 Difference]: Finished difference Result 130 states and 131 transitions. [2023-12-25 06:07:41,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-25 06:07:41,013 INFO L78 Accepts]: Start accepts. Automaton has has 81 states, 79 states have (on average 2.0253164556962027) internal successors, (160), 81 states have internal predecessors, (160), 40 states have call successors, (40), 1 states have call predecessors, (40), 38 states have return successors, (76), 38 states have call predecessors, (76), 40 states have call successors, (76) Word has length 232 [2023-12-25 06:07:41,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:07:41,014 INFO L225 Difference]: With dead ends: 130 [2023-12-25 06:07:41,014 INFO L226 Difference]: Without dead ends: 126 [2023-12-25 06:07:41,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1444 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1832, Invalid=12210, Unknown=0, NotChecked=0, Total=14042 [2023-12-25 06:07:41,016 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 1221 mSDsluCounter, 3094 mSDsCounter, 0 mSdLazyCounter, 1922 mSolverCounterSat, 570 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 3175 SdHoareTripleChecker+Invalid, 2492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 570 IncrementalHoareTripleChecker+Valid, 1922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 06:07:41,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1261 Valid, 3175 Invalid, 2492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [570 Valid, 1922 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 06:07:41,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-12-25 06:07:41,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2023-12-25 06:07:41,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 84 states have (on average 1.0119047619047619) internal successors, (85), 85 states have internal predecessors, (85), 2 states have call successors, (2), 1 states have call predecessors, (2), 39 states have return successors, (40), 39 states have call predecessors, (40), 2 states have call successors, (40) [2023-12-25 06:07:41,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 127 transitions. [2023-12-25 06:07:41,020 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 127 transitions. Word has length 232 [2023-12-25 06:07:41,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:07:41,020 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 127 transitions. [2023-12-25 06:07:41,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 79 states have (on average 2.0253164556962027) internal successors, (160), 81 states have internal predecessors, (160), 40 states have call successors, (40), 1 states have call predecessors, (40), 38 states have return successors, (76), 38 states have call predecessors, (76), 40 states have call successors, (76) [2023-12-25 06:07:41,020 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 127 transitions. [2023-12-25 06:07:41,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-25 06:07:41,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:07:41,021 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:07:41,037 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 (14)] Forceful destruction successful, exit code 0 [2023-12-25 06:07:41,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /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 [2023-12-25 06:07:41,222 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:07:41,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:07:41,223 INFO L85 PathProgramCache]: Analyzing trace with hash -604841369, now seen corresponding path program 13 times [2023-12-25 06:07:41,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:07:41,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956472588] [2023-12-25 06:07:41,223 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-25 06:07:41,223 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 [2023-12-25 06:07:41,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:07:41,224 INFO L229 MonitoredProcess]: Starting monitored process 15 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) [2023-12-25 06:07:41,228 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 (15)] Waiting until timeout for monitored process [2023-12-25 06:07:41,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:07:41,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 81 conjunts are in the unsatisfiable core [2023-12-25 06:07:41,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:07:42,577 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 0 proven. 2185 refuted. 0 times theorem prover too weak. 2185 trivial. 0 not checked. [2023-12-25 06:07:42,577 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:07:53,130 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 0 proven. 3629 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2023-12-25 06:07:53,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:07:53,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1956472588] [2023-12-25 06:07:53,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1956472588] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:07:53,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:07:53,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 81] total 83 [2023-12-25 06:07:53,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810157105] [2023-12-25 06:07:53,131 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:07:53,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2023-12-25 06:07:53,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:07:53,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2023-12-25 06:07:53,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=6564, Unknown=0, NotChecked=0, Total=6806 [2023-12-25 06:07:53,133 INFO L87 Difference]: Start difference. First operand 126 states and 127 transitions. Second operand has 83 states, 81 states have (on average 2.0246913580246915) internal successors, (164), 83 states have internal predecessors, (164), 41 states have call successors, (41), 1 states have call predecessors, (41), 39 states have return successors, (78), 39 states have call predecessors, (78), 41 states have call successors, (78) [2023-12-25 06:07:54,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:07:54,485 INFO L93 Difference]: Finished difference Result 133 states and 134 transitions. [2023-12-25 06:07:54,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-12-25 06:07:54,486 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 81 states have (on average 2.0246913580246915) internal successors, (164), 83 states have internal predecessors, (164), 41 states have call successors, (41), 1 states have call predecessors, (41), 39 states have return successors, (78), 39 states have call predecessors, (78), 41 states have call successors, (78) Word has length 238 [2023-12-25 06:07:54,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:07:54,489 INFO L225 Difference]: With dead ends: 133 [2023-12-25 06:07:54,489 INFO L226 Difference]: Without dead ends: 129 [2023-12-25 06:07:54,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1521 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1919, Invalid=12843, Unknown=0, NotChecked=0, Total=14762 [2023-12-25 06:07:54,494 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 2033 mSDsluCounter, 3240 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 976 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2074 SdHoareTripleChecker+Valid, 3323 SdHoareTripleChecker+Invalid, 2965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 976 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 06:07:54,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2074 Valid, 3323 Invalid, 2965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [976 Valid, 1989 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 06:07:54,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-12-25 06:07:54,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2023-12-25 06:07:54,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 86 states have (on average 1.0116279069767442) internal successors, (87), 87 states have internal predecessors, (87), 2 states have call successors, (2), 1 states have call predecessors, (2), 40 states have return successors, (41), 40 states have call predecessors, (41), 2 states have call successors, (41) [2023-12-25 06:07:54,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 130 transitions. [2023-12-25 06:07:54,510 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 130 transitions. Word has length 238 [2023-12-25 06:07:54,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:07:54,511 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 130 transitions. [2023-12-25 06:07:54,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 81 states have (on average 2.0246913580246915) internal successors, (164), 83 states have internal predecessors, (164), 41 states have call successors, (41), 1 states have call predecessors, (41), 39 states have return successors, (78), 39 states have call predecessors, (78), 41 states have call successors, (78) [2023-12-25 06:07:54,511 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 130 transitions. [2023-12-25 06:07:54,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-12-25 06:07:54,515 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:07:54,515 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:07:54,519 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 (15)] Forceful destruction successful, exit code 0 [2023-12-25 06:07:54,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /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 [2023-12-25 06:07:54,719 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:07:54,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:07:54,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1745637975, now seen corresponding path program 14 times [2023-12-25 06:07:54,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:07:54,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569553358] [2023-12-25 06:07:54,720 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 06:07:54,720 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 [2023-12-25 06:07:54,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:07:54,721 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2023-12-25 06:07:54,722 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 (16)] Waiting until timeout for monitored process [2023-12-25 06:07:55,298 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 06:07:55,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:07:55,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 83 conjunts are in the unsatisfiable core [2023-12-25 06:07:55,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:07:56,229 INFO L134 CoverageAnalysis]: Checked inductivity of 4602 backedges. 0 proven. 2301 refuted. 0 times theorem prover too weak. 2301 trivial. 0 not checked. [2023-12-25 06:07:56,230 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:08:06,684 INFO L134 CoverageAnalysis]: Checked inductivity of 4602 backedges. 0 proven. 3822 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-12-25 06:08:06,685 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:08:06,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [569553358] [2023-12-25 06:08:06,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [569553358] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:08:06,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:08:06,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 83] total 85 [2023-12-25 06:08:06,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106117835] [2023-12-25 06:08:06,686 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:08:06,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2023-12-25 06:08:06,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:08:06,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2023-12-25 06:08:06,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=6892, Unknown=0, NotChecked=0, Total=7140 [2023-12-25 06:08:06,688 INFO L87 Difference]: Start difference. First operand 129 states and 130 transitions. Second operand has 85 states, 83 states have (on average 2.0240963855421685) internal successors, (168), 85 states have internal predecessors, (168), 42 states have call successors, (42), 1 states have call predecessors, (42), 40 states have return successors, (80), 40 states have call predecessors, (80), 42 states have call successors, (80) [2023-12-25 06:08:08,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:08:08,268 INFO L93 Difference]: Finished difference Result 136 states and 137 transitions. [2023-12-25 06:08:08,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-12-25 06:08:08,269 INFO L78 Accepts]: Start accepts. Automaton has has 85 states, 83 states have (on average 2.0240963855421685) internal successors, (168), 85 states have internal predecessors, (168), 42 states have call successors, (42), 1 states have call predecessors, (42), 40 states have return successors, (80), 40 states have call predecessors, (80), 42 states have call successors, (80) Word has length 244 [2023-12-25 06:08:08,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:08:08,278 INFO L225 Difference]: With dead ends: 136 [2023-12-25 06:08:08,278 INFO L226 Difference]: Without dead ends: 132 [2023-12-25 06:08:08,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1600 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2008, Invalid=13492, Unknown=0, NotChecked=0, Total=15500 [2023-12-25 06:08:08,280 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 1048 mSDsluCounter, 3351 mSDsCounter, 0 mSdLazyCounter, 2084 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 3436 SdHoareTripleChecker+Invalid, 2565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 2084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 06:08:08,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1090 Valid, 3436 Invalid, 2565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 2084 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 06:08:08,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-12-25 06:08:08,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2023-12-25 06:08:08,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 88 states have (on average 1.0113636363636365) internal successors, (89), 89 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 41 states have return successors, (42), 41 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-25 06:08:08,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 133 transitions. [2023-12-25 06:08:08,290 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 133 transitions. Word has length 244 [2023-12-25 06:08:08,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:08:08,290 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 133 transitions. [2023-12-25 06:08:08,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 83 states have (on average 2.0240963855421685) internal successors, (168), 85 states have internal predecessors, (168), 42 states have call successors, (42), 1 states have call predecessors, (42), 40 states have return successors, (80), 40 states have call predecessors, (80), 42 states have call successors, (80) [2023-12-25 06:08:08,291 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 133 transitions. [2023-12-25 06:08:08,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-12-25 06:08:08,292 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:08:08,292 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:08:08,300 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 (16)] Forceful destruction successful, exit code 0 [2023-12-25 06:08:08,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /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 [2023-12-25 06:08:08,498 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:08:08,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:08:08,498 INFO L85 PathProgramCache]: Analyzing trace with hash -505473625, now seen corresponding path program 15 times [2023-12-25 06:08:08,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:08:08,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [778376235] [2023-12-25 06:08:08,498 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-25 06:08:08,499 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 [2023-12-25 06:08:08,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:08:08,500 INFO L229 MonitoredProcess]: Starting monitored process 17 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) [2023-12-25 06:08:08,502 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 (17)] Waiting until timeout for monitored process [2023-12-25 06:08:09,181 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 41 check-sat command(s) [2023-12-25 06:08:09,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:08:09,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 85 conjunts are in the unsatisfiable core [2023-12-25 06:08:09,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:08:09,970 INFO L134 CoverageAnalysis]: Checked inductivity of 4840 backedges. 0 proven. 2420 refuted. 0 times theorem prover too weak. 2420 trivial. 0 not checked. [2023-12-25 06:08:09,970 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:08:19,791 INFO L134 CoverageAnalysis]: Checked inductivity of 4840 backedges. 0 proven. 4020 refuted. 0 times theorem prover too weak. 820 trivial. 0 not checked. [2023-12-25 06:08:19,791 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:08:19,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [778376235] [2023-12-25 06:08:19,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [778376235] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:08:19,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:08:19,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 85] total 87 [2023-12-25 06:08:19,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601291795] [2023-12-25 06:08:19,792 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:08:19,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2023-12-25 06:08:19,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:08:19,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2023-12-25 06:08:19,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=7228, Unknown=0, NotChecked=0, Total=7482 [2023-12-25 06:08:19,798 INFO L87 Difference]: Start difference. First operand 132 states and 133 transitions. Second operand has 87 states, 85 states have (on average 2.023529411764706) internal successors, (172), 87 states have internal predecessors, (172), 43 states have call successors, (43), 1 states have call predecessors, (43), 41 states have return successors, (82), 41 states have call predecessors, (82), 43 states have call successors, (82) [2023-12-25 06:08:21,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:08:21,519 INFO L93 Difference]: Finished difference Result 139 states and 140 transitions. [2023-12-25 06:08:21,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-25 06:08:21,520 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 85 states have (on average 2.023529411764706) internal successors, (172), 87 states have internal predecessors, (172), 43 states have call successors, (43), 1 states have call predecessors, (43), 41 states have return successors, (82), 41 states have call predecessors, (82), 43 states have call successors, (82) Word has length 250 [2023-12-25 06:08:21,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:08:21,521 INFO L225 Difference]: With dead ends: 139 [2023-12-25 06:08:21,521 INFO L226 Difference]: Without dead ends: 135 [2023-12-25 06:08:21,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1681 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=2099, Invalid=14157, Unknown=0, NotChecked=0, Total=16256 [2023-12-25 06:08:21,522 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 3285 mSDsluCounter, 3589 mSDsCounter, 0 mSdLazyCounter, 2204 mSolverCounterSat, 1600 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3328 SdHoareTripleChecker+Valid, 3676 SdHoareTripleChecker+Invalid, 3804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1600 IncrementalHoareTripleChecker+Valid, 2204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 06:08:21,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3328 Valid, 3676 Invalid, 3804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1600 Valid, 2204 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 06:08:21,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-12-25 06:08:21,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2023-12-25 06:08:21,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 90 states have (on average 1.011111111111111) internal successors, (91), 91 states have internal predecessors, (91), 2 states have call successors, (2), 1 states have call predecessors, (2), 42 states have return successors, (43), 42 states have call predecessors, (43), 2 states have call successors, (43) [2023-12-25 06:08:21,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 136 transitions. [2023-12-25 06:08:21,527 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 136 transitions. Word has length 250 [2023-12-25 06:08:21,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:08:21,527 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 136 transitions. [2023-12-25 06:08:21,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 85 states have (on average 2.023529411764706) internal successors, (172), 87 states have internal predecessors, (172), 43 states have call successors, (43), 1 states have call predecessors, (43), 41 states have return successors, (82), 41 states have call predecessors, (82), 43 states have call successors, (82) [2023-12-25 06:08:21,528 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 136 transitions. [2023-12-25 06:08:21,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-12-25 06:08:21,528 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:08:21,529 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:08:21,535 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 (17)] Forceful destruction successful, exit code 0 [2023-12-25 06:08:21,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /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 [2023-12-25 06:08:21,733 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:08:21,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:08:21,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1434033769, now seen corresponding path program 16 times [2023-12-25 06:08:21,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:08:21,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [787146881] [2023-12-25 06:08:21,734 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-25 06:08:21,734 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 [2023-12-25 06:08:21,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:08:21,735 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2023-12-25 06:08:21,745 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 (18)] Waiting until timeout for monitored process [2023-12-25 06:08:22,465 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-25 06:08:22,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:08:22,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 87 conjunts are in the unsatisfiable core [2023-12-25 06:08:22,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:08:23,255 INFO L134 CoverageAnalysis]: Checked inductivity of 5084 backedges. 0 proven. 2542 refuted. 0 times theorem prover too weak. 2542 trivial. 0 not checked. [2023-12-25 06:08:23,256 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:08:34,068 INFO L134 CoverageAnalysis]: Checked inductivity of 5084 backedges. 0 proven. 4223 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2023-12-25 06:08:34,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:08:34,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [787146881] [2023-12-25 06:08:34,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [787146881] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:08:34,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:08:34,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 87] total 89 [2023-12-25 06:08:34,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744114147] [2023-12-25 06:08:34,069 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:08:34,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2023-12-25 06:08:34,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:08:34,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2023-12-25 06:08:34,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=7572, Unknown=0, NotChecked=0, Total=7832 [2023-12-25 06:08:34,070 INFO L87 Difference]: Start difference. First operand 135 states and 136 transitions. Second operand has 89 states, 87 states have (on average 2.0229885057471266) internal successors, (176), 89 states have internal predecessors, (176), 44 states have call successors, (44), 1 states have call predecessors, (44), 42 states have return successors, (84), 42 states have call predecessors, (84), 44 states have call successors, (84) [2023-12-25 06:08:35,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:08:35,798 INFO L93 Difference]: Finished difference Result 142 states and 143 transitions. [2023-12-25 06:08:35,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-12-25 06:08:35,799 INFO L78 Accepts]: Start accepts. Automaton has has 89 states, 87 states have (on average 2.0229885057471266) internal successors, (176), 89 states have internal predecessors, (176), 44 states have call successors, (44), 1 states have call predecessors, (44), 42 states have return successors, (84), 42 states have call predecessors, (84), 44 states have call successors, (84) Word has length 256 [2023-12-25 06:08:35,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:08:35,800 INFO L225 Difference]: With dead ends: 142 [2023-12-25 06:08:35,800 INFO L226 Difference]: Without dead ends: 138 [2023-12-25 06:08:35,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1764 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=2192, Invalid=14838, Unknown=0, NotChecked=0, Total=17030 [2023-12-25 06:08:35,802 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 3449 mSDsluCounter, 3756 mSDsCounter, 0 mSdLazyCounter, 2292 mSolverCounterSat, 1681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3493 SdHoareTripleChecker+Valid, 3845 SdHoareTripleChecker+Invalid, 3973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1681 IncrementalHoareTripleChecker+Valid, 2292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 06:08:35,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3493 Valid, 3845 Invalid, 3973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1681 Valid, 2292 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 06:08:35,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-12-25 06:08:35,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2023-12-25 06:08:35,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 92 states have (on average 1.0108695652173914) internal successors, (93), 93 states have internal predecessors, (93), 2 states have call successors, (2), 1 states have call predecessors, (2), 43 states have return successors, (44), 43 states have call predecessors, (44), 2 states have call successors, (44) [2023-12-25 06:08:35,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 139 transitions. [2023-12-25 06:08:35,805 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 139 transitions. Word has length 256 [2023-12-25 06:08:35,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:08:35,805 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 139 transitions. [2023-12-25 06:08:35,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 87 states have (on average 2.0229885057471266) internal successors, (176), 89 states have internal predecessors, (176), 44 states have call successors, (44), 1 states have call predecessors, (44), 42 states have return successors, (84), 42 states have call predecessors, (84), 44 states have call successors, (84) [2023-12-25 06:08:35,806 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 139 transitions. [2023-12-25 06:08:35,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-12-25 06:08:35,806 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:08:35,807 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:08:35,819 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 (18)] Ended with exit code 0 [2023-12-25 06:08:36,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /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 [2023-12-25 06:08:36,012 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:08:36,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:08:36,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1357713177, now seen corresponding path program 17 times [2023-12-25 06:08:36,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:08:36,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [65086466] [2023-12-25 06:08:36,012 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-25 06:08:36,012 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 [2023-12-25 06:08:36,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:08:36,020 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2023-12-25 06:08:36,021 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 (19)] Waiting until timeout for monitored process [2023-12-25 06:08:37,034 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 43 check-sat command(s) [2023-12-25 06:08:37,035 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:08:37,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 89 conjunts are in the unsatisfiable core [2023-12-25 06:08:37,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:08:38,071 INFO L134 CoverageAnalysis]: Checked inductivity of 5334 backedges. 0 proven. 2667 refuted. 0 times theorem prover too weak. 2667 trivial. 0 not checked. [2023-12-25 06:08:38,071 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:08:49,918 INFO L134 CoverageAnalysis]: Checked inductivity of 5334 backedges. 0 proven. 4431 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2023-12-25 06:08:49,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:08:49,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [65086466] [2023-12-25 06:08:49,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [65086466] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:08:49,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:08:49,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 89] total 91 [2023-12-25 06:08:49,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274241189] [2023-12-25 06:08:49,921 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:08:49,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2023-12-25 06:08:49,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:08:49,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2023-12-25 06:08:49,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=7924, Unknown=0, NotChecked=0, Total=8190 [2023-12-25 06:08:49,923 INFO L87 Difference]: Start difference. First operand 138 states and 139 transitions. Second operand has 91 states, 89 states have (on average 2.0224719101123596) internal successors, (180), 91 states have internal predecessors, (180), 45 states have call successors, (45), 1 states have call predecessors, (45), 43 states have return successors, (86), 43 states have call predecessors, (86), 45 states have call successors, (86) [2023-12-25 06:08:51,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:08:51,771 INFO L93 Difference]: Finished difference Result 145 states and 146 transitions. [2023-12-25 06:08:51,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-25 06:08:51,771 INFO L78 Accepts]: Start accepts. Automaton has has 91 states, 89 states have (on average 2.0224719101123596) internal successors, (180), 91 states have internal predecessors, (180), 45 states have call successors, (45), 1 states have call predecessors, (45), 43 states have return successors, (86), 43 states have call predecessors, (86), 45 states have call successors, (86) Word has length 262 [2023-12-25 06:08:51,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:08:51,772 INFO L225 Difference]: With dead ends: 145 [2023-12-25 06:08:51,772 INFO L226 Difference]: Without dead ends: 141 [2023-12-25 06:08:51,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1849 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2287, Invalid=15535, Unknown=0, NotChecked=0, Total=17822 [2023-12-25 06:08:51,775 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 91 mSDsluCounter, 3942 mSDsCounter, 0 mSdLazyCounter, 2407 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 4033 SdHoareTripleChecker+Invalid, 2407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 06:08:51,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 4033 Invalid, 2407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2407 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 06:08:51,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-12-25 06:08:51,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2023-12-25 06:08:51,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 94 states have (on average 1.0106382978723405) internal successors, (95), 95 states have internal predecessors, (95), 2 states have call successors, (2), 1 states have call predecessors, (2), 44 states have return successors, (45), 44 states have call predecessors, (45), 2 states have call successors, (45) [2023-12-25 06:08:51,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 142 transitions. [2023-12-25 06:08:51,779 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 142 transitions. Word has length 262 [2023-12-25 06:08:51,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:08:51,780 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 142 transitions. [2023-12-25 06:08:51,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 89 states have (on average 2.0224719101123596) internal successors, (180), 91 states have internal predecessors, (180), 45 states have call successors, (45), 1 states have call predecessors, (45), 43 states have return successors, (86), 43 states have call predecessors, (86), 45 states have call successors, (86) [2023-12-25 06:08:51,780 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 142 transitions. [2023-12-25 06:08:51,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-12-25 06:08:51,781 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:08:51,781 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:08:51,788 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 (19)] Ended with exit code 0 [2023-12-25 06:08:51,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /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 [2023-12-25 06:08:51,986 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:08:51,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:08:51,987 INFO L85 PathProgramCache]: Analyzing trace with hash 311234775, now seen corresponding path program 18 times [2023-12-25 06:08:51,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:08:51,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1626056556] [2023-12-25 06:08:51,987 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-25 06:08:51,987 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 [2023-12-25 06:08:51,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:08:51,988 INFO L229 MonitoredProcess]: Starting monitored process 20 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) [2023-12-25 06:08:52,027 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 (20)] Waiting until timeout for monitored process [2023-12-25 06:08:53,075 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 44 check-sat command(s) [2023-12-25 06:08:53,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:08:53,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 91 conjunts are in the unsatisfiable core [2023-12-25 06:08:53,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:08:54,130 INFO L134 CoverageAnalysis]: Checked inductivity of 5590 backedges. 0 proven. 2795 refuted. 0 times theorem prover too weak. 2795 trivial. 0 not checked. [2023-12-25 06:08:54,130 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:09:07,332 INFO L134 CoverageAnalysis]: Checked inductivity of 5590 backedges. 0 proven. 4644 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-12-25 06:09:07,333 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:09:07,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1626056556] [2023-12-25 06:09:07,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1626056556] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:09:07,333 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:09:07,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 91] total 93 [2023-12-25 06:09:07,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312015258] [2023-12-25 06:09:07,333 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:09:07,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2023-12-25 06:09:07,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:09:07,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2023-12-25 06:09:07,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=8284, Unknown=0, NotChecked=0, Total=8556 [2023-12-25 06:09:07,337 INFO L87 Difference]: Start difference. First operand 141 states and 142 transitions. Second operand has 93 states, 91 states have (on average 2.021978021978022) internal successors, (184), 93 states have internal predecessors, (184), 46 states have call successors, (46), 1 states have call predecessors, (46), 44 states have return successors, (88), 44 states have call predecessors, (88), 46 states have call successors, (88) [2023-12-25 06:09:09,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:09:09,093 INFO L93 Difference]: Finished difference Result 148 states and 149 transitions. [2023-12-25 06:09:09,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-25 06:09:09,094 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 91 states have (on average 2.021978021978022) internal successors, (184), 93 states have internal predecessors, (184), 46 states have call successors, (46), 1 states have call predecessors, (46), 44 states have return successors, (88), 44 states have call predecessors, (88), 46 states have call successors, (88) Word has length 268 [2023-12-25 06:09:09,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:09:09,095 INFO L225 Difference]: With dead ends: 148 [2023-12-25 06:09:09,095 INFO L226 Difference]: Without dead ends: 144 [2023-12-25 06:09:09,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 578 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1936 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=2384, Invalid=16248, Unknown=0, NotChecked=0, Total=18632 [2023-12-25 06:09:09,098 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 800 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2441 mSolverCounterSat, 353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 4115 SdHoareTripleChecker+Invalid, 2794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 353 IncrementalHoareTripleChecker+Valid, 2441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 06:09:09,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 4115 Invalid, 2794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [353 Valid, 2441 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 06:09:09,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-12-25 06:09:09,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2023-12-25 06:09:09,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 96 states have (on average 1.0104166666666667) internal successors, (97), 97 states have internal predecessors, (97), 2 states have call successors, (2), 1 states have call predecessors, (2), 45 states have return successors, (46), 45 states have call predecessors, (46), 2 states have call successors, (46) [2023-12-25 06:09:09,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 145 transitions. [2023-12-25 06:09:09,103 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 145 transitions. Word has length 268 [2023-12-25 06:09:09,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:09:09,103 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 145 transitions. [2023-12-25 06:09:09,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 91 states have (on average 2.021978021978022) internal successors, (184), 93 states have internal predecessors, (184), 46 states have call successors, (46), 1 states have call predecessors, (46), 44 states have return successors, (88), 44 states have call predecessors, (88), 46 states have call successors, (88) [2023-12-25 06:09:09,104 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 145 transitions. [2023-12-25 06:09:09,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-12-25 06:09:09,105 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:09:09,105 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:09:09,112 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 (20)] Ended with exit code 0 [2023-12-25 06:09:09,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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 [2023-12-25 06:09:09,319 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:09:09,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:09:09,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1983802407, now seen corresponding path program 19 times [2023-12-25 06:09:09,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:09:09,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954715927] [2023-12-25 06:09:09,320 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-25 06:09:09,320 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 [2023-12-25 06:09:09,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:09:09,322 INFO L229 MonitoredProcess]: Starting monitored process 21 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) [2023-12-25 06:09:09,322 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 (21)] Waiting until timeout for monitored process [2023-12-25 06:09:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:09:10,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 93 conjunts are in the unsatisfiable core [2023-12-25 06:09:10,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:09:11,264 INFO L134 CoverageAnalysis]: Checked inductivity of 5852 backedges. 0 proven. 2926 refuted. 0 times theorem prover too weak. 2926 trivial. 0 not checked. [2023-12-25 06:09:11,264 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:09:23,084 INFO L134 CoverageAnalysis]: Checked inductivity of 5852 backedges. 0 proven. 4862 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2023-12-25 06:09:23,084 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:09:23,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954715927] [2023-12-25 06:09:23,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1954715927] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:09:23,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:09:23,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 93] total 95 [2023-12-25 06:09:23,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662461706] [2023-12-25 06:09:23,085 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:09:23,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2023-12-25 06:09:23,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:09:23,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2023-12-25 06:09:23,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=8652, Unknown=0, NotChecked=0, Total=8930 [2023-12-25 06:09:23,087 INFO L87 Difference]: Start difference. First operand 144 states and 145 transitions. Second operand has 95 states, 93 states have (on average 2.021505376344086) internal successors, (188), 95 states have internal predecessors, (188), 47 states have call successors, (47), 1 states have call predecessors, (47), 45 states have return successors, (90), 45 states have call predecessors, (90), 47 states have call successors, (90) [2023-12-25 06:09:24,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:09:24,762 INFO L93 Difference]: Finished difference Result 151 states and 152 transitions. [2023-12-25 06:09:24,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-25 06:09:24,763 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 93 states have (on average 2.021505376344086) internal successors, (188), 95 states have internal predecessors, (188), 47 states have call successors, (47), 1 states have call predecessors, (47), 45 states have return successors, (90), 45 states have call predecessors, (90), 47 states have call successors, (90) Word has length 274 [2023-12-25 06:09:24,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:09:24,763 INFO L225 Difference]: With dead ends: 151 [2023-12-25 06:09:24,763 INFO L226 Difference]: Without dead ends: 147 [2023-12-25 06:09:24,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2025 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=2483, Invalid=16977, Unknown=0, NotChecked=0, Total=19460 [2023-12-25 06:09:24,765 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 1625 mSDsluCounter, 4302 mSDsCounter, 0 mSdLazyCounter, 2603 mSolverCounterSat, 765 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1672 SdHoareTripleChecker+Valid, 4397 SdHoareTripleChecker+Invalid, 3368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 765 IncrementalHoareTripleChecker+Valid, 2603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 06:09:24,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1672 Valid, 4397 Invalid, 3368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [765 Valid, 2603 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 06:09:24,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-12-25 06:09:24,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2023-12-25 06:09:24,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 98 states have (on average 1.010204081632653) internal successors, (99), 99 states have internal predecessors, (99), 2 states have call successors, (2), 1 states have call predecessors, (2), 46 states have return successors, (47), 46 states have call predecessors, (47), 2 states have call successors, (47) [2023-12-25 06:09:24,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 148 transitions. [2023-12-25 06:09:24,769 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 148 transitions. Word has length 274 [2023-12-25 06:09:24,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:09:24,769 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 148 transitions. [2023-12-25 06:09:24,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 93 states have (on average 2.021505376344086) internal successors, (188), 95 states have internal predecessors, (188), 47 states have call successors, (47), 1 states have call predecessors, (47), 45 states have return successors, (90), 45 states have call predecessors, (90), 47 states have call successors, (90) [2023-12-25 06:09:24,773 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 148 transitions. [2023-12-25 06:09:24,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-12-25 06:09:24,774 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:09:24,774 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:09:24,780 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 (21)] Forceful destruction successful, exit code 0 [2023-12-25 06:09:24,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /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 [2023-12-25 06:09:24,981 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:09:24,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:09:24,981 INFO L85 PathProgramCache]: Analyzing trace with hash 2098225175, now seen corresponding path program 20 times [2023-12-25 06:09:24,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:09:24,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [835206735] [2023-12-25 06:09:24,981 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 06:09:24,981 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 [2023-12-25 06:09:24,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:09:24,982 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2023-12-25 06:09:24,983 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 (22)] Waiting until timeout for monitored process [2023-12-25 06:09:25,956 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 06:09:25,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:09:25,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 95 conjunts are in the unsatisfiable core [2023-12-25 06:09:25,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:09:26,783 INFO L134 CoverageAnalysis]: Checked inductivity of 6120 backedges. 0 proven. 3060 refuted. 0 times theorem prover too weak. 3060 trivial. 0 not checked. [2023-12-25 06:09:26,783 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:09:38,609 INFO L134 CoverageAnalysis]: Checked inductivity of 6120 backedges. 0 proven. 5085 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-12-25 06:09:38,610 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:09:38,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [835206735] [2023-12-25 06:09:38,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [835206735] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:09:38,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:09:38,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 95] total 97 [2023-12-25 06:09:38,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413013422] [2023-12-25 06:09:38,610 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:09:38,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2023-12-25 06:09:38,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:09:38,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2023-12-25 06:09:38,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=284, Invalid=9028, Unknown=0, NotChecked=0, Total=9312 [2023-12-25 06:09:38,617 INFO L87 Difference]: Start difference. First operand 147 states and 148 transitions. Second operand has 97 states, 95 states have (on average 2.0210526315789474) internal successors, (192), 97 states have internal predecessors, (192), 48 states have call successors, (48), 1 states have call predecessors, (48), 46 states have return successors, (92), 46 states have call predecessors, (92), 48 states have call successors, (92) [2023-12-25 06:09:40,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:09:40,347 INFO L93 Difference]: Finished difference Result 154 states and 155 transitions. [2023-12-25 06:09:40,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-25 06:09:40,348 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 95 states have (on average 2.0210526315789474) internal successors, (192), 97 states have internal predecessors, (192), 48 states have call successors, (48), 1 states have call predecessors, (48), 46 states have return successors, (92), 46 states have call predecessors, (92), 48 states have call successors, (92) Word has length 280 [2023-12-25 06:09:40,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:09:40,349 INFO L225 Difference]: With dead ends: 154 [2023-12-25 06:09:40,349 INFO L226 Difference]: Without dead ends: 150 [2023-12-25 06:09:40,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2116 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2584, Invalid=17722, Unknown=0, NotChecked=0, Total=20306 [2023-12-25 06:09:40,351 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 3409 mSDsluCounter, 4491 mSDsCounter, 0 mSdLazyCounter, 2709 mSolverCounterSat, 1657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3457 SdHoareTripleChecker+Valid, 4588 SdHoareTripleChecker+Invalid, 4366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1657 IncrementalHoareTripleChecker+Valid, 2709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 06:09:40,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3457 Valid, 4588 Invalid, 4366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1657 Valid, 2709 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 06:09:40,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-12-25 06:09:40,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2023-12-25 06:09:40,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 100 states have (on average 1.01) internal successors, (101), 101 states have internal predecessors, (101), 2 states have call successors, (2), 1 states have call predecessors, (2), 47 states have return successors, (48), 47 states have call predecessors, (48), 2 states have call successors, (48) [2023-12-25 06:09:40,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 151 transitions. [2023-12-25 06:09:40,374 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 151 transitions. Word has length 280 [2023-12-25 06:09:40,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:09:40,375 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 151 transitions. [2023-12-25 06:09:40,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 95 states have (on average 2.0210526315789474) internal successors, (192), 97 states have internal predecessors, (192), 48 states have call successors, (48), 1 states have call predecessors, (48), 46 states have return successors, (92), 46 states have call predecessors, (92), 48 states have call successors, (92) [2023-12-25 06:09:40,375 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 151 transitions. [2023-12-25 06:09:40,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2023-12-25 06:09:40,376 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:09:40,376 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:09:40,384 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 (22)] Forceful destruction successful, exit code 0 [2023-12-25 06:09:40,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /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 [2023-12-25 06:09:40,582 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:09:40,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:09:40,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1978562713, now seen corresponding path program 21 times [2023-12-25 06:09:40,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:09:40,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844101354] [2023-12-25 06:09:40,582 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-25 06:09:40,582 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 [2023-12-25 06:09:40,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:09:40,584 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2023-12-25 06:09:40,585 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 (23)] Waiting until timeout for monitored process [2023-12-25 06:09:42,033 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2023-12-25 06:09:42,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:09:42,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 97 conjunts are in the unsatisfiable core [2023-12-25 06:09:42,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:09:42,777 INFO L134 CoverageAnalysis]: Checked inductivity of 6394 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 3197 trivial. 0 not checked. [2023-12-25 06:09:42,778 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:09:54,443 INFO L134 CoverageAnalysis]: Checked inductivity of 6394 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 1081 trivial. 0 not checked. [2023-12-25 06:09:54,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:09:54,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844101354] [2023-12-25 06:09:54,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1844101354] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:09:54,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:09:54,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 97] total 99 [2023-12-25 06:09:54,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553835667] [2023-12-25 06:09:54,444 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:09:54,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2023-12-25 06:09:54,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:09:54,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2023-12-25 06:09:54,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=290, Invalid=9412, Unknown=0, NotChecked=0, Total=9702 [2023-12-25 06:09:54,469 INFO L87 Difference]: Start difference. First operand 150 states and 151 transitions. Second operand has 99 states, 97 states have (on average 2.020618556701031) internal successors, (196), 99 states have internal predecessors, (196), 49 states have call successors, (49), 1 states have call predecessors, (49), 47 states have return successors, (94), 47 states have call predecessors, (94), 49 states have call successors, (94) [2023-12-25 06:09:56,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:09:56,187 INFO L93 Difference]: Finished difference Result 157 states and 158 transitions. [2023-12-25 06:09:56,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-12-25 06:09:56,187 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 97 states have (on average 2.020618556701031) internal successors, (196), 99 states have internal predecessors, (196), 49 states have call successors, (49), 1 states have call predecessors, (49), 47 states have return successors, (94), 47 states have call predecessors, (94), 49 states have call successors, (94) Word has length 286 [2023-12-25 06:09:56,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:09:56,191 INFO L225 Difference]: With dead ends: 157 [2023-12-25 06:09:56,192 INFO L226 Difference]: Without dead ends: 153 [2023-12-25 06:09:56,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 617 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2209 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2687, Invalid=18483, Unknown=0, NotChecked=0, Total=21170 [2023-12-25 06:09:56,197 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 1885 mSDsluCounter, 4681 mSDsCounter, 0 mSdLazyCounter, 2812 mSolverCounterSat, 894 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1934 SdHoareTripleChecker+Valid, 4780 SdHoareTripleChecker+Invalid, 3706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 894 IncrementalHoareTripleChecker+Valid, 2812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 06:09:56,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1934 Valid, 4780 Invalid, 3706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [894 Valid, 2812 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 06:09:56,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-12-25 06:09:56,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2023-12-25 06:09:56,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 102 states have (on average 1.0098039215686274) internal successors, (103), 103 states have internal predecessors, (103), 2 states have call successors, (2), 1 states have call predecessors, (2), 48 states have return successors, (49), 48 states have call predecessors, (49), 2 states have call successors, (49) [2023-12-25 06:09:56,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 154 transitions. [2023-12-25 06:09:56,224 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 154 transitions. Word has length 286 [2023-12-25 06:09:56,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:09:56,225 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 154 transitions. [2023-12-25 06:09:56,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 97 states have (on average 2.020618556701031) internal successors, (196), 99 states have internal predecessors, (196), 49 states have call successors, (49), 1 states have call predecessors, (49), 47 states have return successors, (94), 47 states have call predecessors, (94), 49 states have call successors, (94) [2023-12-25 06:09:56,225 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 154 transitions. [2023-12-25 06:09:56,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2023-12-25 06:09:56,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:09:56,226 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:09:56,235 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 (23)] Forceful destruction successful, exit code 0 [2023-12-25 06:09:56,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /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 [2023-12-25 06:09:56,432 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:09:56,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:09:56,433 INFO L85 PathProgramCache]: Analyzing trace with hash 922767191, now seen corresponding path program 22 times [2023-12-25 06:09:56,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:09:56,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [529910946] [2023-12-25 06:09:56,433 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-25 06:09:56,433 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 [2023-12-25 06:09:56,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:09:56,434 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2023-12-25 06:09:56,438 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 (24)] Waiting until timeout for monitored process [2023-12-25 06:09:57,740 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-25 06:09:57,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:09:57,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 99 conjunts are in the unsatisfiable core [2023-12-25 06:09:57,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:09:58,853 INFO L134 CoverageAnalysis]: Checked inductivity of 6674 backedges. 0 proven. 3337 refuted. 0 times theorem prover too weak. 3337 trivial. 0 not checked. [2023-12-25 06:09:58,853 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:10:14,280 INFO L134 CoverageAnalysis]: Checked inductivity of 6674 backedges. 0 proven. 5546 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2023-12-25 06:10:14,280 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:10:14,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [529910946] [2023-12-25 06:10:14,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [529910946] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:10:14,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:10:14,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 99] total 101 [2023-12-25 06:10:14,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330348535] [2023-12-25 06:10:14,281 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:10:14,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2023-12-25 06:10:14,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:10:14,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2023-12-25 06:10:14,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=9804, Unknown=0, NotChecked=0, Total=10100 [2023-12-25 06:10:14,284 INFO L87 Difference]: Start difference. First operand 153 states and 154 transitions. Second operand has 101 states, 99 states have (on average 2.0202020202020203) internal successors, (200), 101 states have internal predecessors, (200), 50 states have call successors, (50), 1 states have call predecessors, (50), 48 states have return successors, (96), 48 states have call predecessors, (96), 50 states have call successors, (96) [2023-12-25 06:10:16,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:10:16,502 INFO L93 Difference]: Finished difference Result 160 states and 161 transitions. [2023-12-25 06:10:16,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-12-25 06:10:16,502 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 99 states have (on average 2.0202020202020203) internal successors, (200), 101 states have internal predecessors, (200), 50 states have call successors, (50), 1 states have call predecessors, (50), 48 states have return successors, (96), 48 states have call predecessors, (96), 50 states have call successors, (96) Word has length 292 [2023-12-25 06:10:16,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:10:16,503 INFO L225 Difference]: With dead ends: 160 [2023-12-25 06:10:16,503 INFO L226 Difference]: Without dead ends: 156 [2023-12-25 06:10:16,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 483 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2304 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=2792, Invalid=19260, Unknown=0, NotChecked=0, Total=22052 [2023-12-25 06:10:16,506 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 1829 mSDsluCounter, 4860 mSDsCounter, 0 mSdLazyCounter, 2892 mSolverCounterSat, 865 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1879 SdHoareTripleChecker+Valid, 4961 SdHoareTripleChecker+Invalid, 3757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 865 IncrementalHoareTripleChecker+Valid, 2892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-25 06:10:16,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1879 Valid, 4961 Invalid, 3757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [865 Valid, 2892 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-25 06:10:16,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-12-25 06:10:16,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2023-12-25 06:10:16,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 104 states have (on average 1.0096153846153846) internal successors, (105), 105 states have internal predecessors, (105), 2 states have call successors, (2), 1 states have call predecessors, (2), 49 states have return successors, (50), 49 states have call predecessors, (50), 2 states have call successors, (50) [2023-12-25 06:10:16,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 157 transitions. [2023-12-25 06:10:16,527 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 157 transitions. Word has length 292 [2023-12-25 06:10:16,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:10:16,527 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 157 transitions. [2023-12-25 06:10:16,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 99 states have (on average 2.0202020202020203) internal successors, (200), 101 states have internal predecessors, (200), 50 states have call successors, (50), 1 states have call predecessors, (50), 48 states have return successors, (96), 48 states have call predecessors, (96), 50 states have call successors, (96) [2023-12-25 06:10:16,527 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 157 transitions. [2023-12-25 06:10:16,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-12-25 06:10:16,528 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:10:16,528 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:10:16,542 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 (24)] Forceful destruction successful, exit code 0 [2023-12-25 06:10:16,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /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 [2023-12-25 06:10:16,735 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:10:16,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:10:16,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1564230311, now seen corresponding path program 23 times [2023-12-25 06:10:16,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:10:16,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793983002] [2023-12-25 06:10:16,735 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-25 06:10:16,735 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 [2023-12-25 06:10:16,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:10:16,749 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2023-12-25 06:10:16,750 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 (25)] Waiting until timeout for monitored process [2023-12-25 06:10:18,462 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 49 check-sat command(s) [2023-12-25 06:10:18,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:10:18,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 101 conjunts are in the unsatisfiable core [2023-12-25 06:10:18,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:10:19,336 INFO L134 CoverageAnalysis]: Checked inductivity of 6960 backedges. 0 proven. 3480 refuted. 0 times theorem prover too weak. 3480 trivial. 0 not checked. [2023-12-25 06:10:19,336 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:10:36,454 INFO L134 CoverageAnalysis]: Checked inductivity of 6960 backedges. 0 proven. 5784 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2023-12-25 06:10:36,455 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:10:36,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [793983002] [2023-12-25 06:10:36,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [793983002] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:10:36,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:10:36,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 101] total 103 [2023-12-25 06:10:36,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542069804] [2023-12-25 06:10:36,455 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:10:36,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2023-12-25 06:10:36,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:10:36,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2023-12-25 06:10:36,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=10204, Unknown=0, NotChecked=0, Total=10506 [2023-12-25 06:10:36,458 INFO L87 Difference]: Start difference. First operand 156 states and 157 transitions. Second operand has 103 states, 101 states have (on average 2.01980198019802) internal successors, (204), 103 states have internal predecessors, (204), 51 states have call successors, (51), 1 states have call predecessors, (51), 49 states have return successors, (98), 49 states have call predecessors, (98), 51 states have call successors, (98) [2023-12-25 06:10:39,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:10:39,146 INFO L93 Difference]: Finished difference Result 163 states and 164 transitions. [2023-12-25 06:10:39,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-12-25 06:10:39,147 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 101 states have (on average 2.01980198019802) internal successors, (204), 103 states have internal predecessors, (204), 51 states have call successors, (51), 1 states have call predecessors, (51), 49 states have return successors, (98), 49 states have call predecessors, (98), 51 states have call successors, (98) Word has length 298 [2023-12-25 06:10:39,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:10:39,148 INFO L225 Difference]: With dead ends: 163 [2023-12-25 06:10:39,148 INFO L226 Difference]: Without dead ends: 159 [2023-12-25 06:10:39,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 643 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2401 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=2899, Invalid=20053, Unknown=0, NotChecked=0, Total=22952 [2023-12-25 06:10:39,150 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 988 mSDsluCounter, 5001 mSDsCounter, 0 mSdLazyCounter, 3016 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 5104 SdHoareTripleChecker+Invalid, 3458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 3016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-25 06:10:39,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1039 Valid, 5104 Invalid, 3458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [442 Valid, 3016 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-25 06:10:39,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-12-25 06:10:39,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2023-12-25 06:10:39,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 106 states have (on average 1.009433962264151) internal successors, (107), 107 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 50 states have return successors, (51), 50 states have call predecessors, (51), 2 states have call successors, (51) [2023-12-25 06:10:39,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 160 transitions. [2023-12-25 06:10:39,154 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 160 transitions. Word has length 298 [2023-12-25 06:10:39,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:10:39,155 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 160 transitions. [2023-12-25 06:10:39,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 101 states have (on average 2.01980198019802) internal successors, (204), 103 states have internal predecessors, (204), 51 states have call successors, (51), 1 states have call predecessors, (51), 49 states have return successors, (98), 49 states have call predecessors, (98), 51 states have call successors, (98) [2023-12-25 06:10:39,155 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 160 transitions. [2023-12-25 06:10:39,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2023-12-25 06:10:39,177 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:10:39,177 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:10:39,201 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 (25)] Forceful destruction successful, exit code 0 [2023-12-25 06:10:39,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /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 [2023-12-25 06:10:39,383 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:10:39,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:10:39,383 INFO L85 PathProgramCache]: Analyzing trace with hash -45293929, now seen corresponding path program 24 times [2023-12-25 06:10:39,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:10:39,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1679029093] [2023-12-25 06:10:39,384 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-25 06:10:39,384 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 [2023-12-25 06:10:39,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:10:39,386 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2023-12-25 06:10:39,394 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 (26)] Waiting until timeout for monitored process [2023-12-25 06:10:41,230 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 50 check-sat command(s) [2023-12-25 06:10:41,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:10:41,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 103 conjunts are in the unsatisfiable core [2023-12-25 06:10:41,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:10:42,626 INFO L134 CoverageAnalysis]: Checked inductivity of 7252 backedges. 0 proven. 3626 refuted. 0 times theorem prover too weak. 3626 trivial. 0 not checked. [2023-12-25 06:10:42,627 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:11:03,268 INFO L134 CoverageAnalysis]: Checked inductivity of 7252 backedges. 0 proven. 6027 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2023-12-25 06:11:03,269 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:11:03,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1679029093] [2023-12-25 06:11:03,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1679029093] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:11:03,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:11:03,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 103] total 105 [2023-12-25 06:11:03,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814500128] [2023-12-25 06:11:03,269 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:11:03,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2023-12-25 06:11:03,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:11:03,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2023-12-25 06:11:03,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=10612, Unknown=0, NotChecked=0, Total=10920 [2023-12-25 06:11:03,272 INFO L87 Difference]: Start difference. First operand 159 states and 160 transitions. Second operand has 105 states, 103 states have (on average 2.0194174757281553) internal successors, (208), 105 states have internal predecessors, (208), 52 states have call successors, (52), 1 states have call predecessors, (52), 50 states have return successors, (100), 50 states have call predecessors, (100), 52 states have call successors, (100) [2023-12-25 06:11:06,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:11:06,182 INFO L93 Difference]: Finished difference Result 166 states and 167 transitions. [2023-12-25 06:11:06,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-12-25 06:11:06,183 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 103 states have (on average 2.0194174757281553) internal successors, (208), 105 states have internal predecessors, (208), 52 states have call successors, (52), 1 states have call predecessors, (52), 50 states have return successors, (100), 50 states have call predecessors, (100), 52 states have call successors, (100) Word has length 304 [2023-12-25 06:11:06,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:11:06,184 INFO L225 Difference]: With dead ends: 166 [2023-12-25 06:11:06,184 INFO L226 Difference]: Without dead ends: 162 [2023-12-25 06:11:06,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 656 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2500 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=3008, Invalid=20862, Unknown=0, NotChecked=0, Total=23870 [2023-12-25 06:11:06,187 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 2805 mSDsluCounter, 5263 mSDsCounter, 0 mSdLazyCounter, 3113 mSolverCounterSat, 1351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2857 SdHoareTripleChecker+Valid, 5368 SdHoareTripleChecker+Invalid, 4464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1351 IncrementalHoareTripleChecker+Valid, 3113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-25 06:11:06,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2857 Valid, 5368 Invalid, 4464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1351 Valid, 3113 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-25 06:11:06,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-12-25 06:11:06,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2023-12-25 06:11:06,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 108 states have (on average 1.0092592592592593) internal successors, (109), 109 states have internal predecessors, (109), 2 states have call successors, (2), 1 states have call predecessors, (2), 51 states have return successors, (52), 51 states have call predecessors, (52), 2 states have call successors, (52) [2023-12-25 06:11:06,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 163 transitions. [2023-12-25 06:11:06,192 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 163 transitions. Word has length 304 [2023-12-25 06:11:06,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:11:06,192 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 163 transitions. [2023-12-25 06:11:06,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 103 states have (on average 2.0194174757281553) internal successors, (208), 105 states have internal predecessors, (208), 52 states have call successors, (52), 1 states have call predecessors, (52), 50 states have return successors, (100), 50 states have call predecessors, (100), 52 states have call successors, (100) [2023-12-25 06:11:06,193 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 163 transitions. [2023-12-25 06:11:06,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2023-12-25 06:11:06,194 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:11:06,194 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:11:06,217 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 (26)] Forceful destruction successful, exit code 0 [2023-12-25 06:11:06,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /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 [2023-12-25 06:11:06,401 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:11:06,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:11:06,402 INFO L85 PathProgramCache]: Analyzing trace with hash -2106679833, now seen corresponding path program 25 times [2023-12-25 06:11:06,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:11:06,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [738601686] [2023-12-25 06:11:06,402 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-25 06:11:06,402 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 [2023-12-25 06:11:06,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:11:06,403 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2023-12-25 06:11:06,436 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 (27)] Waiting until timeout for monitored process [2023-12-25 06:11:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:11:08,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 105 conjunts are in the unsatisfiable core [2023-12-25 06:11:08,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:11:09,667 INFO L134 CoverageAnalysis]: Checked inductivity of 7550 backedges. 0 proven. 3775 refuted. 0 times theorem prover too weak. 3775 trivial. 0 not checked. [2023-12-25 06:11:09,667 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:11:32,072 INFO L134 CoverageAnalysis]: Checked inductivity of 7550 backedges. 0 proven. 6275 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2023-12-25 06:11:32,073 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:11:32,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [738601686] [2023-12-25 06:11:32,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [738601686] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:11:32,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:11:32,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 105] total 107 [2023-12-25 06:11:32,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391156173] [2023-12-25 06:11:32,074 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:11:32,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2023-12-25 06:11:32,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:11:32,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2023-12-25 06:11:32,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=11028, Unknown=0, NotChecked=0, Total=11342 [2023-12-25 06:11:32,084 INFO L87 Difference]: Start difference. First operand 162 states and 163 transitions. Second operand has 107 states, 105 states have (on average 2.019047619047619) internal successors, (212), 107 states have internal predecessors, (212), 53 states have call successors, (53), 1 states have call predecessors, (53), 51 states have return successors, (102), 51 states have call predecessors, (102), 53 states have call successors, (102) [2023-12-25 06:11:34,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:11:34,398 INFO L93 Difference]: Finished difference Result 169 states and 170 transitions. [2023-12-25 06:11:34,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-12-25 06:11:34,398 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 105 states have (on average 2.019047619047619) internal successors, (212), 107 states have internal predecessors, (212), 53 states have call successors, (53), 1 states have call predecessors, (53), 51 states have return successors, (102), 51 states have call predecessors, (102), 53 states have call successors, (102) Word has length 310 [2023-12-25 06:11:34,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:11:34,399 INFO L225 Difference]: With dead ends: 169 [2023-12-25 06:11:34,399 INFO L226 Difference]: Without dead ends: 165 [2023-12-25 06:11:34,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2601 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=3119, Invalid=21687, Unknown=0, NotChecked=0, Total=24806 [2023-12-25 06:11:34,402 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 2147 mSDsluCounter, 5511 mSDsCounter, 0 mSdLazyCounter, 3294 mSolverCounterSat, 1021 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2200 SdHoareTripleChecker+Valid, 5618 SdHoareTripleChecker+Invalid, 4315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1021 IncrementalHoareTripleChecker+Valid, 3294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 06:11:34,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2200 Valid, 5618 Invalid, 4315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1021 Valid, 3294 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 06:11:34,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-12-25 06:11:34,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2023-12-25 06:11:34,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 110 states have (on average 1.009090909090909) internal successors, (111), 111 states have internal predecessors, (111), 2 states have call successors, (2), 1 states have call predecessors, (2), 52 states have return successors, (53), 52 states have call predecessors, (53), 2 states have call successors, (53) [2023-12-25 06:11:34,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 166 transitions. [2023-12-25 06:11:34,406 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 166 transitions. Word has length 310 [2023-12-25 06:11:34,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:11:34,406 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 166 transitions. [2023-12-25 06:11:34,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 105 states have (on average 2.019047619047619) internal successors, (212), 107 states have internal predecessors, (212), 53 states have call successors, (53), 1 states have call predecessors, (53), 51 states have return successors, (102), 51 states have call predecessors, (102), 53 states have call successors, (102) [2023-12-25 06:11:34,407 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 166 transitions. [2023-12-25 06:11:34,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2023-12-25 06:11:34,408 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:11:34,408 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:11:34,417 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 (27)] Ended with exit code 0 [2023-12-25 06:11:34,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /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 [2023-12-25 06:11:34,620 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:11:34,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:11:34,621 INFO L85 PathProgramCache]: Analyzing trace with hash -52032041, now seen corresponding path program 26 times [2023-12-25 06:11:34,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:11:34,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32981079] [2023-12-25 06:11:34,621 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 06:11:34,621 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 [2023-12-25 06:11:34,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:11:34,630 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2023-12-25 06:11:34,631 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 (28)] Waiting until timeout for monitored process [2023-12-25 06:11:36,285 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 06:11:36,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:11:36,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 107 conjunts are in the unsatisfiable core [2023-12-25 06:11:36,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:11:37,781 INFO L134 CoverageAnalysis]: Checked inductivity of 7854 backedges. 0 proven. 3927 refuted. 0 times theorem prover too weak. 3927 trivial. 0 not checked. [2023-12-25 06:11:37,781 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:11:55,662 INFO L134 CoverageAnalysis]: Checked inductivity of 7854 backedges. 0 proven. 6528 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked. [2023-12-25 06:11:55,662 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:11:55,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32981079] [2023-12-25 06:11:55,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32981079] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:11:55,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:11:55,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 107] total 109 [2023-12-25 06:11:55,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917554416] [2023-12-25 06:11:55,663 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:11:55,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 109 states [2023-12-25 06:11:55,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:11:55,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2023-12-25 06:11:55,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=11452, Unknown=0, NotChecked=0, Total=11772 [2023-12-25 06:11:55,665 INFO L87 Difference]: Start difference. First operand 165 states and 166 transitions. Second operand has 109 states, 107 states have (on average 2.0186915887850465) internal successors, (216), 109 states have internal predecessors, (216), 54 states have call successors, (54), 1 states have call predecessors, (54), 52 states have return successors, (104), 52 states have call predecessors, (104), 54 states have call successors, (104) [2023-12-25 06:11:57,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:11:57,720 INFO L93 Difference]: Finished difference Result 172 states and 173 transitions. [2023-12-25 06:11:57,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-12-25 06:11:57,721 INFO L78 Accepts]: Start accepts. Automaton has has 109 states, 107 states have (on average 2.0186915887850465) internal successors, (216), 109 states have internal predecessors, (216), 54 states have call successors, (54), 1 states have call predecessors, (54), 52 states have return successors, (104), 52 states have call predecessors, (104), 54 states have call successors, (104) Word has length 316 [2023-12-25 06:11:57,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:11:57,737 INFO L225 Difference]: With dead ends: 172 [2023-12-25 06:11:57,738 INFO L226 Difference]: Without dead ends: 168 [2023-12-25 06:11:57,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 682 GetRequests, 523 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2704 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=3232, Invalid=22528, Unknown=0, NotChecked=0, Total=25760 [2023-12-25 06:11:57,740 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 1877 mSDsluCounter, 5679 mSDsCounter, 0 mSdLazyCounter, 3337 mSolverCounterSat, 884 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1931 SdHoareTripleChecker+Valid, 5788 SdHoareTripleChecker+Invalid, 4221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 884 IncrementalHoareTripleChecker+Valid, 3337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 06:11:57,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1931 Valid, 5788 Invalid, 4221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [884 Valid, 3337 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 06:11:57,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-12-25 06:11:57,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2023-12-25 06:11:57,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 112 states have (on average 1.0089285714285714) internal successors, (113), 113 states have internal predecessors, (113), 2 states have call successors, (2), 1 states have call predecessors, (2), 53 states have return successors, (54), 53 states have call predecessors, (54), 2 states have call successors, (54) [2023-12-25 06:11:57,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 169 transitions. [2023-12-25 06:11:57,744 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 169 transitions. Word has length 316 [2023-12-25 06:11:57,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:11:57,744 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 169 transitions. [2023-12-25 06:11:57,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 109 states, 107 states have (on average 2.0186915887850465) internal successors, (216), 109 states have internal predecessors, (216), 54 states have call successors, (54), 1 states have call predecessors, (54), 52 states have return successors, (104), 52 states have call predecessors, (104), 54 states have call successors, (104) [2023-12-25 06:11:57,745 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 169 transitions. [2023-12-25 06:11:57,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2023-12-25 06:11:57,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:11:57,746 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:11:57,755 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 (28)] Forceful destruction successful, exit code 0 [2023-12-25 06:11:57,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /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 [2023-12-25 06:11:57,954 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:11:57,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:11:57,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1403479769, now seen corresponding path program 27 times [2023-12-25 06:11:57,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:11:57,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92335041] [2023-12-25 06:11:57,954 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-25 06:11:57,954 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 [2023-12-25 06:11:57,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:11:57,965 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2023-12-25 06:11:58,038 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 (29)] Waiting until timeout for monitored process [2023-12-25 06:12:00,251 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 53 check-sat command(s) [2023-12-25 06:12:00,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:12:00,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 109 conjunts are in the unsatisfiable core [2023-12-25 06:12:00,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:12:01,518 INFO L134 CoverageAnalysis]: Checked inductivity of 8164 backedges. 0 proven. 4082 refuted. 0 times theorem prover too weak. 4082 trivial. 0 not checked. [2023-12-25 06:12:01,518 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:12:24,792 INFO L134 CoverageAnalysis]: Checked inductivity of 8164 backedges. 0 proven. 6786 refuted. 0 times theorem prover too weak. 1378 trivial. 0 not checked. [2023-12-25 06:12:24,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:12:24,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92335041] [2023-12-25 06:12:24,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92335041] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:12:24,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:12:24,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 109] total 111 [2023-12-25 06:12:24,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008016274] [2023-12-25 06:12:24,793 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:12:24,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 111 states [2023-12-25 06:12:24,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:12:24,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2023-12-25 06:12:24,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=326, Invalid=11884, Unknown=0, NotChecked=0, Total=12210 [2023-12-25 06:12:24,796 INFO L87 Difference]: Start difference. First operand 168 states and 169 transitions. Second operand has 111 states, 109 states have (on average 2.018348623853211) internal successors, (220), 111 states have internal predecessors, (220), 55 states have call successors, (55), 1 states have call predecessors, (55), 53 states have return successors, (106), 53 states have call predecessors, (106), 55 states have call successors, (106) [2023-12-25 06:12:27,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:12:27,920 INFO L93 Difference]: Finished difference Result 175 states and 176 transitions. [2023-12-25 06:12:27,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-25 06:12:27,921 INFO L78 Accepts]: Start accepts. Automaton has has 111 states, 109 states have (on average 2.018348623853211) internal successors, (220), 111 states have internal predecessors, (220), 55 states have call successors, (55), 1 states have call predecessors, (55), 53 states have return successors, (106), 53 states have call predecessors, (106), 55 states have call successors, (106) Word has length 322 [2023-12-25 06:12:27,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:12:27,922 INFO L225 Difference]: With dead ends: 175 [2023-12-25 06:12:27,922 INFO L226 Difference]: Without dead ends: 171 [2023-12-25 06:12:27,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 695 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2809 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=3347, Invalid=23385, Unknown=0, NotChecked=0, Total=26732 [2023-12-25 06:12:27,926 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 1068 mSDsluCounter, 5804 mSDsCounter, 0 mSdLazyCounter, 3425 mSolverCounterSat, 478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 5915 SdHoareTripleChecker+Invalid, 3903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 478 IncrementalHoareTripleChecker+Valid, 3425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-25 06:12:27,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1123 Valid, 5915 Invalid, 3903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [478 Valid, 3425 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-25 06:12:27,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-12-25 06:12:27,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2023-12-25 06:12:27,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 114 states have (on average 1.0087719298245614) internal successors, (115), 115 states have internal predecessors, (115), 2 states have call successors, (2), 1 states have call predecessors, (2), 54 states have return successors, (55), 54 states have call predecessors, (55), 2 states have call successors, (55) [2023-12-25 06:12:27,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 172 transitions. [2023-12-25 06:12:27,932 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 172 transitions. Word has length 322 [2023-12-25 06:12:27,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:12:27,933 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 172 transitions. [2023-12-25 06:12:27,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 111 states, 109 states have (on average 2.018348623853211) internal successors, (220), 111 states have internal predecessors, (220), 55 states have call successors, (55), 1 states have call predecessors, (55), 53 states have return successors, (106), 53 states have call predecessors, (106), 55 states have call successors, (106) [2023-12-25 06:12:27,933 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 172 transitions. [2023-12-25 06:12:27,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2023-12-25 06:12:27,935 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:12:27,935 INFO L195 NwaCegarLoop]: trace histogram [54, 54, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:12:27,949 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 (29)] Forceful destruction successful, exit code 0 [2023-12-25 06:12:28,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /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 [2023-12-25 06:12:28,147 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:12:28,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:12:28,148 INFO L85 PathProgramCache]: Analyzing trace with hash -759440105, now seen corresponding path program 28 times [2023-12-25 06:12:28,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:12:28,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1289228418] [2023-12-25 06:12:28,148 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-25 06:12:28,149 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 [2023-12-25 06:12:28,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:12:28,150 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2023-12-25 06:12:28,183 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 (30)] Waiting until timeout for monitored process [2023-12-25 06:12:30,540 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-25 06:12:30,541 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:12:30,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 111 conjunts are in the unsatisfiable core [2023-12-25 06:12:30,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:12:32,252 INFO L134 CoverageAnalysis]: Checked inductivity of 8480 backedges. 0 proven. 4240 refuted. 0 times theorem prover too weak. 4240 trivial. 0 not checked. [2023-12-25 06:12:32,253 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:12:56,627 INFO L134 CoverageAnalysis]: Checked inductivity of 8480 backedges. 0 proven. 7049 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2023-12-25 06:12:56,627 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:12:56,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1289228418] [2023-12-25 06:12:56,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1289228418] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:12:56,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:12:56,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 111] total 113 [2023-12-25 06:12:56,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589542580] [2023-12-25 06:12:56,628 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:12:56,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2023-12-25 06:12:56,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:12:56,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2023-12-25 06:12:56,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=332, Invalid=12324, Unknown=0, NotChecked=0, Total=12656 [2023-12-25 06:12:56,630 INFO L87 Difference]: Start difference. First operand 171 states and 172 transitions. Second operand has 113 states, 111 states have (on average 2.018018018018018) internal successors, (224), 113 states have internal predecessors, (224), 56 states have call successors, (56), 1 states have call predecessors, (56), 54 states have return successors, (108), 54 states have call predecessors, (108), 56 states have call successors, (108) [2023-12-25 06:13:00,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:13:00,471 INFO L93 Difference]: Finished difference Result 178 states and 179 transitions. [2023-12-25 06:13:00,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-12-25 06:13:00,472 INFO L78 Accepts]: Start accepts. Automaton has has 113 states, 111 states have (on average 2.018018018018018) internal successors, (224), 113 states have internal predecessors, (224), 56 states have call successors, (56), 1 states have call predecessors, (56), 54 states have return successors, (108), 54 states have call predecessors, (108), 56 states have call successors, (108) Word has length 328 [2023-12-25 06:13:00,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:13:00,473 INFO L225 Difference]: With dead ends: 178 [2023-12-25 06:13:00,473 INFO L226 Difference]: Without dead ends: 174 [2023-12-25 06:13:00,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 708 GetRequests, 543 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2916 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=3464, Invalid=24258, Unknown=0, NotChecked=0, Total=27722 [2023-12-25 06:13:00,475 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 5945 mSDsluCounter, 6138 mSDsCounter, 0 mSdLazyCounter, 3614 mSolverCounterSat, 2917 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6001 SdHoareTripleChecker+Valid, 6251 SdHoareTripleChecker+Invalid, 6531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2917 IncrementalHoareTripleChecker+Valid, 3614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-25 06:13:00,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6001 Valid, 6251 Invalid, 6531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2917 Valid, 3614 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-25 06:13:00,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-12-25 06:13:00,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2023-12-25 06:13:00,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 116 states have (on average 1.0086206896551724) internal successors, (117), 117 states have internal predecessors, (117), 2 states have call successors, (2), 1 states have call predecessors, (2), 55 states have return successors, (56), 55 states have call predecessors, (56), 2 states have call successors, (56) [2023-12-25 06:13:00,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 175 transitions. [2023-12-25 06:13:00,479 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 175 transitions. Word has length 328 [2023-12-25 06:13:00,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:13:00,479 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 175 transitions. [2023-12-25 06:13:00,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 113 states, 111 states have (on average 2.018018018018018) internal successors, (224), 113 states have internal predecessors, (224), 56 states have call successors, (56), 1 states have call predecessors, (56), 54 states have return successors, (108), 54 states have call predecessors, (108), 56 states have call successors, (108) [2023-12-25 06:13:00,480 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 175 transitions. [2023-12-25 06:13:00,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2023-12-25 06:13:00,481 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:13:00,481 INFO L195 NwaCegarLoop]: trace histogram [55, 55, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:13:00,494 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 (30)] Forceful destruction successful, exit code 0 [2023-12-25 06:13:00,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /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 [2023-12-25 06:13:00,692 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:13:00,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:13:00,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1381354393, now seen corresponding path program 29 times [2023-12-25 06:13:00,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:13:00,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053876564] [2023-12-25 06:13:00,692 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-25 06:13:00,693 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 [2023-12-25 06:13:00,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:13:00,694 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2023-12-25 06:13:00,694 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 (31)] Waiting until timeout for monitored process [2023-12-25 06:13:03,223 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 55 check-sat command(s) [2023-12-25 06:13:03,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:13:03,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 113 conjunts are in the unsatisfiable core [2023-12-25 06:13:03,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:13:04,744 INFO L134 CoverageAnalysis]: Checked inductivity of 8802 backedges. 0 proven. 4401 refuted. 0 times theorem prover too weak. 4401 trivial. 0 not checked. [2023-12-25 06:13:04,744 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:13:30,039 INFO L134 CoverageAnalysis]: Checked inductivity of 8802 backedges. 0 proven. 7317 refuted. 0 times theorem prover too weak. 1485 trivial. 0 not checked. [2023-12-25 06:13:30,040 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:13:30,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1053876564] [2023-12-25 06:13:30,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1053876564] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:13:30,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:13:30,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 113] total 115 [2023-12-25 06:13:30,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758227875] [2023-12-25 06:13:30,040 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:13:30,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 115 states [2023-12-25 06:13:30,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:13:30,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2023-12-25 06:13:30,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=338, Invalid=12772, Unknown=0, NotChecked=0, Total=13110 [2023-12-25 06:13:30,043 INFO L87 Difference]: Start difference. First operand 174 states and 175 transitions. Second operand has 115 states, 113 states have (on average 2.017699115044248) internal successors, (228), 115 states have internal predecessors, (228), 57 states have call successors, (57), 1 states have call predecessors, (57), 55 states have return successors, (110), 55 states have call predecessors, (110), 57 states have call successors, (110) [2023-12-25 06:13:33,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:13:33,179 INFO L93 Difference]: Finished difference Result 181 states and 182 transitions. [2023-12-25 06:13:33,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2023-12-25 06:13:33,180 INFO L78 Accepts]: Start accepts. Automaton has has 115 states, 113 states have (on average 2.017699115044248) internal successors, (228), 115 states have internal predecessors, (228), 57 states have call successors, (57), 1 states have call predecessors, (57), 55 states have return successors, (110), 55 states have call predecessors, (110), 57 states have call successors, (110) Word has length 334 [2023-12-25 06:13:33,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:13:33,182 INFO L225 Difference]: With dead ends: 181 [2023-12-25 06:13:33,182 INFO L226 Difference]: Without dead ends: 177 [2023-12-25 06:13:33,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 721 GetRequests, 553 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3025 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=3583, Invalid=25147, Unknown=0, NotChecked=0, Total=28730 [2023-12-25 06:13:33,185 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 338 mSDsluCounter, 6240 mSDsCounter, 0 mSdLazyCounter, 3659 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 6355 SdHoareTripleChecker+Invalid, 3770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 3659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 06:13:33,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 6355 Invalid, 3770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 3659 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 06:13:33,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-12-25 06:13:33,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2023-12-25 06:13:33,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 118 states have (on average 1.0084745762711864) internal successors, (119), 119 states have internal predecessors, (119), 2 states have call successors, (2), 1 states have call predecessors, (2), 56 states have return successors, (57), 56 states have call predecessors, (57), 2 states have call successors, (57) [2023-12-25 06:13:33,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 178 transitions. [2023-12-25 06:13:33,191 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 178 transitions. Word has length 334 [2023-12-25 06:13:33,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:13:33,192 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 178 transitions. [2023-12-25 06:13:33,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 115 states, 113 states have (on average 2.017699115044248) internal successors, (228), 115 states have internal predecessors, (228), 57 states have call successors, (57), 1 states have call predecessors, (57), 55 states have return successors, (110), 55 states have call predecessors, (110), 57 states have call successors, (110) [2023-12-25 06:13:33,192 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 178 transitions. [2023-12-25 06:13:33,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2023-12-25 06:13:33,194 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:13:33,194 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 55, 55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:13:33,209 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 (31)] Forceful destruction successful, exit code 0 [2023-12-25 06:13:33,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /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 [2023-12-25 06:13:33,407 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:13:33,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:13:33,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1950462889, now seen corresponding path program 30 times [2023-12-25 06:13:33,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:13:33,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [122232903] [2023-12-25 06:13:33,408 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-25 06:13:33,408 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 [2023-12-25 06:13:33,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:13:33,409 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2023-12-25 06:13:33,444 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 (32)] Waiting until timeout for monitored process [2023-12-25 06:13:36,565 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 56 check-sat command(s) [2023-12-25 06:13:36,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:13:36,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 115 conjunts are in the unsatisfiable core [2023-12-25 06:13:36,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:13:38,428 INFO L134 CoverageAnalysis]: Checked inductivity of 9130 backedges. 0 proven. 4565 refuted. 0 times theorem prover too weak. 4565 trivial. 0 not checked. [2023-12-25 06:13:38,428 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:14:04,504 INFO L134 CoverageAnalysis]: Checked inductivity of 9130 backedges. 0 proven. 7590 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2023-12-25 06:14:04,505 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:14:04,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [122232903] [2023-12-25 06:14:04,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [122232903] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:14:04,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:14:04,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 115] total 117 [2023-12-25 06:14:04,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261928571] [2023-12-25 06:14:04,507 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:14:04,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 117 states [2023-12-25 06:14:04,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:14:04,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2023-12-25 06:14:04,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=344, Invalid=13228, Unknown=0, NotChecked=0, Total=13572 [2023-12-25 06:14:04,510 INFO L87 Difference]: Start difference. First operand 177 states and 178 transitions. Second operand has 117 states, 115 states have (on average 2.017391304347826) internal successors, (232), 117 states have internal predecessors, (232), 58 states have call successors, (58), 1 states have call predecessors, (58), 56 states have return successors, (112), 56 states have call predecessors, (112), 58 states have call successors, (112) [2023-12-25 06:14:06,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:14:06,971 INFO L93 Difference]: Finished difference Result 184 states and 185 transitions. [2023-12-25 06:14:06,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-12-25 06:14:06,972 INFO L78 Accepts]: Start accepts. Automaton has has 117 states, 115 states have (on average 2.017391304347826) internal successors, (232), 117 states have internal predecessors, (232), 58 states have call successors, (58), 1 states have call predecessors, (58), 56 states have return successors, (112), 56 states have call predecessors, (112), 58 states have call successors, (112) Word has length 340 [2023-12-25 06:14:06,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:14:06,974 INFO L225 Difference]: With dead ends: 184 [2023-12-25 06:14:06,974 INFO L226 Difference]: Without dead ends: 180 [2023-12-25 06:14:06,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 563 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3136 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=3704, Invalid=26052, Unknown=0, NotChecked=0, Total=29756 [2023-12-25 06:14:06,976 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 904 mSDsluCounter, 6482 mSDsCounter, 0 mSdLazyCounter, 3809 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 6599 SdHoareTripleChecker+Invalid, 4202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 3809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 06:14:06,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 6599 Invalid, 4202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 3809 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 06:14:06,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-12-25 06:14:06,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2023-12-25 06:14:06,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 120 states have (on average 1.0083333333333333) internal successors, (121), 121 states have internal predecessors, (121), 2 states have call successors, (2), 1 states have call predecessors, (2), 57 states have return successors, (58), 57 states have call predecessors, (58), 2 states have call successors, (58) [2023-12-25 06:14:06,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 181 transitions. [2023-12-25 06:14:06,991 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 181 transitions. Word has length 340 [2023-12-25 06:14:06,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:14:06,992 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 181 transitions. [2023-12-25 06:14:06,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 117 states, 115 states have (on average 2.017391304347826) internal successors, (232), 117 states have internal predecessors, (232), 58 states have call successors, (58), 1 states have call predecessors, (58), 56 states have return successors, (112), 56 states have call predecessors, (112), 58 states have call successors, (112) [2023-12-25 06:14:06,992 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 181 transitions. [2023-12-25 06:14:06,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2023-12-25 06:14:06,993 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:14:06,993 INFO L195 NwaCegarLoop]: trace histogram [57, 57, 56, 56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:14:07,029 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 (32)] Forceful destruction successful, exit code 0 [2023-12-25 06:14:07,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /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 [2023-12-25 06:14:07,194 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:14:07,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:14:07,195 INFO L85 PathProgramCache]: Analyzing trace with hash 2031316903, now seen corresponding path program 31 times [2023-12-25 06:14:07,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:14:07,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416921219] [2023-12-25 06:14:07,195 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-25 06:14:07,195 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 [2023-12-25 06:14:07,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:14:07,197 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2023-12-25 06:14:07,205 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 (33)] Waiting until timeout for monitored process [2023-12-25 06:14:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:14:09,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 117 conjunts are in the unsatisfiable core [2023-12-25 06:14:09,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:14:11,229 INFO L134 CoverageAnalysis]: Checked inductivity of 9464 backedges. 0 proven. 4732 refuted. 0 times theorem prover too weak. 4732 trivial. 0 not checked. [2023-12-25 06:14:11,230 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:14:29,281 INFO L134 CoverageAnalysis]: Checked inductivity of 9464 backedges. 0 proven. 7868 refuted. 0 times theorem prover too weak. 1596 trivial. 0 not checked. [2023-12-25 06:14:29,282 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:14:29,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1416921219] [2023-12-25 06:14:29,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1416921219] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:14:29,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:14:29,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 117] total 119 [2023-12-25 06:14:29,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672768336] [2023-12-25 06:14:29,282 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:14:29,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2023-12-25 06:14:29,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:14:29,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2023-12-25 06:14:29,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=350, Invalid=13692, Unknown=0, NotChecked=0, Total=14042 [2023-12-25 06:14:29,285 INFO L87 Difference]: Start difference. First operand 180 states and 181 transitions. Second operand has 119 states, 117 states have (on average 2.017094017094017) internal successors, (236), 119 states have internal predecessors, (236), 59 states have call successors, (59), 1 states have call predecessors, (59), 57 states have return successors, (114), 57 states have call predecessors, (114), 59 states have call successors, (114) [2023-12-25 06:14:32,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:14:32,116 INFO L93 Difference]: Finished difference Result 187 states and 188 transitions. [2023-12-25 06:14:32,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-12-25 06:14:32,116 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 117 states have (on average 2.017094017094017) internal successors, (236), 119 states have internal predecessors, (236), 59 states have call successors, (59), 1 states have call predecessors, (59), 57 states have return successors, (114), 57 states have call predecessors, (114), 59 states have call successors, (114) Word has length 346 [2023-12-25 06:14:32,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:14:32,117 INFO L225 Difference]: With dead ends: 187 [2023-12-25 06:14:32,117 INFO L226 Difference]: Without dead ends: 183 [2023-12-25 06:14:32,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 747 GetRequests, 573 SyntacticMatches, 0 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3249 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=3827, Invalid=26973, Unknown=0, NotChecked=0, Total=30800 [2023-12-25 06:14:32,119 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 4568 mSDsluCounter, 6707 mSDsCounter, 0 mSdLazyCounter, 3926 mSolverCounterSat, 2224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4627 SdHoareTripleChecker+Valid, 6826 SdHoareTripleChecker+Invalid, 6150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2224 IncrementalHoareTripleChecker+Valid, 3926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-25 06:14:32,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4627 Valid, 6826 Invalid, 6150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2224 Valid, 3926 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-25 06:14:32,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-12-25 06:14:32,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2023-12-25 06:14:32,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 122 states have (on average 1.0081967213114753) internal successors, (123), 123 states have internal predecessors, (123), 2 states have call successors, (2), 1 states have call predecessors, (2), 58 states have return successors, (59), 58 states have call predecessors, (59), 2 states have call successors, (59) [2023-12-25 06:14:32,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 184 transitions. [2023-12-25 06:14:32,122 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 184 transitions. Word has length 346 [2023-12-25 06:14:32,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:14:32,123 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 184 transitions. [2023-12-25 06:14:32,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 117 states have (on average 2.017094017094017) internal successors, (236), 119 states have internal predecessors, (236), 59 states have call successors, (59), 1 states have call predecessors, (59), 57 states have return successors, (114), 57 states have call predecessors, (114), 59 states have call successors, (114) [2023-12-25 06:14:32,123 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 184 transitions. [2023-12-25 06:14:32,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2023-12-25 06:14:32,124 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:14:32,124 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 57, 57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:14:32,154 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 (33)] Forceful destruction successful, exit code 0 [2023-12-25 06:14:32,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /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 [2023-12-25 06:14:32,345 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:14:32,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:14:32,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1528996969, now seen corresponding path program 32 times [2023-12-25 06:14:32,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:14:32,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432138800] [2023-12-25 06:14:32,345 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 06:14:32,346 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 [2023-12-25 06:14:32,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:14:32,347 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2023-12-25 06:14:32,348 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 (34)] Waiting until timeout for monitored process [2023-12-25 06:14:34,971 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 06:14:34,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:14:34,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 119 conjunts are in the unsatisfiable core [2023-12-25 06:14:34,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:14:36,068 INFO L134 CoverageAnalysis]: Checked inductivity of 9804 backedges. 0 proven. 4902 refuted. 0 times theorem prover too weak. 4902 trivial. 0 not checked. [2023-12-25 06:14:36,069 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:15:00,441 INFO L134 CoverageAnalysis]: Checked inductivity of 9804 backedges. 0 proven. 8151 refuted. 0 times theorem prover too weak. 1653 trivial. 0 not checked. [2023-12-25 06:15:00,442 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:15:00,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1432138800] [2023-12-25 06:15:00,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1432138800] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:15:00,442 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:15:00,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 119] total 121 [2023-12-25 06:15:00,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672428276] [2023-12-25 06:15:00,442 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:15:00,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 121 states [2023-12-25 06:15:00,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:15:00,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2023-12-25 06:15:00,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=14164, Unknown=0, NotChecked=0, Total=14520 [2023-12-25 06:15:00,444 INFO L87 Difference]: Start difference. First operand 183 states and 184 transitions. Second operand has 121 states, 119 states have (on average 2.0168067226890756) internal successors, (240), 121 states have internal predecessors, (240), 60 states have call successors, (60), 1 states have call predecessors, (60), 58 states have return successors, (116), 58 states have call predecessors, (116), 60 states have call successors, (116) [2023-12-25 06:15:03,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:15:03,336 INFO L93 Difference]: Finished difference Result 190 states and 191 transitions. [2023-12-25 06:15:03,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-12-25 06:15:03,337 INFO L78 Accepts]: Start accepts. Automaton has has 121 states, 119 states have (on average 2.0168067226890756) internal successors, (240), 121 states have internal predecessors, (240), 60 states have call successors, (60), 1 states have call predecessors, (60), 58 states have return successors, (116), 58 states have call predecessors, (116), 60 states have call successors, (116) Word has length 352 [2023-12-25 06:15:03,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:15:03,339 INFO L225 Difference]: With dead ends: 190 [2023-12-25 06:15:03,339 INFO L226 Difference]: Without dead ends: 186 [2023-12-25 06:15:03,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 760 GetRequests, 583 SyntacticMatches, 0 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3364 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=3952, Invalid=27910, Unknown=0, NotChecked=0, Total=31862 [2023-12-25 06:15:03,341 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 1748 mSDsluCounter, 6969 mSDsCounter, 0 mSdLazyCounter, 4100 mSolverCounterSat, 813 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1808 SdHoareTripleChecker+Valid, 7090 SdHoareTripleChecker+Invalid, 4913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 813 IncrementalHoareTripleChecker+Valid, 4100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 06:15:03,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1808 Valid, 7090 Invalid, 4913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [813 Valid, 4100 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 06:15:03,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2023-12-25 06:15:03,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2023-12-25 06:15:03,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 124 states have (on average 1.0080645161290323) internal successors, (125), 125 states have internal predecessors, (125), 2 states have call successors, (2), 1 states have call predecessors, (2), 59 states have return successors, (60), 59 states have call predecessors, (60), 2 states have call successors, (60) [2023-12-25 06:15:03,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 187 transitions. [2023-12-25 06:15:03,359 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 187 transitions. Word has length 352 [2023-12-25 06:15:03,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:15:03,359 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 187 transitions. [2023-12-25 06:15:03,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 121 states, 119 states have (on average 2.0168067226890756) internal successors, (240), 121 states have internal predecessors, (240), 60 states have call successors, (60), 1 states have call predecessors, (60), 58 states have return successors, (116), 58 states have call predecessors, (116), 60 states have call successors, (116) [2023-12-25 06:15:03,359 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 187 transitions. [2023-12-25 06:15:03,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2023-12-25 06:15:03,361 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:15:03,361 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:15:03,370 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 (34)] Forceful destruction successful, exit code 0 [2023-12-25 06:15:03,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /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 [2023-12-25 06:15:03,570 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:15:03,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:15:03,571 INFO L85 PathProgramCache]: Analyzing trace with hash 558123751, now seen corresponding path program 33 times [2023-12-25 06:15:03,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:15:03,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [464605394] [2023-12-25 06:15:03,571 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-25 06:15:03,571 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 [2023-12-25 06:15:03,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:15:03,590 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2023-12-25 06:15:03,621 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 (35)] Waiting until timeout for monitored process [2023-12-25 06:15:06,610 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 59 check-sat command(s) [2023-12-25 06:15:06,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:15:06,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 121 conjunts are in the unsatisfiable core [2023-12-25 06:15:06,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:15:08,180 INFO L134 CoverageAnalysis]: Checked inductivity of 10150 backedges. 0 proven. 5075 refuted. 0 times theorem prover too weak. 5075 trivial. 0 not checked. [2023-12-25 06:15:08,180 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:15:30,524 INFO L134 CoverageAnalysis]: Checked inductivity of 10150 backedges. 0 proven. 8439 refuted. 0 times theorem prover too weak. 1711 trivial. 0 not checked. [2023-12-25 06:15:30,524 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:15:30,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [464605394] [2023-12-25 06:15:30,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [464605394] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:15:30,524 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:15:30,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 121] total 123 [2023-12-25 06:15:30,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246786919] [2023-12-25 06:15:30,525 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:15:30,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 123 states [2023-12-25 06:15:30,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:15:30,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2023-12-25 06:15:30,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=14644, Unknown=0, NotChecked=0, Total=15006 [2023-12-25 06:15:30,527 INFO L87 Difference]: Start difference. First operand 186 states and 187 transitions. Second operand has 123 states, 121 states have (on average 2.0165289256198347) internal successors, (244), 123 states have internal predecessors, (244), 61 states have call successors, (61), 1 states have call predecessors, (61), 59 states have return successors, (118), 59 states have call predecessors, (118), 61 states have call successors, (118) [2023-12-25 06:15:33,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:15:33,076 INFO L93 Difference]: Finished difference Result 193 states and 194 transitions. [2023-12-25 06:15:33,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-12-25 06:15:33,076 INFO L78 Accepts]: Start accepts. Automaton has has 123 states, 121 states have (on average 2.0165289256198347) internal successors, (244), 123 states have internal predecessors, (244), 61 states have call successors, (61), 1 states have call predecessors, (61), 59 states have return successors, (118), 59 states have call predecessors, (118), 61 states have call successors, (118) Word has length 358 [2023-12-25 06:15:33,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:15:33,077 INFO L225 Difference]: With dead ends: 193 [2023-12-25 06:15:33,077 INFO L226 Difference]: Without dead ends: 189 [2023-12-25 06:15:33,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 773 GetRequests, 593 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3481 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=4079, Invalid=28863, Unknown=0, NotChecked=0, Total=32942 [2023-12-25 06:15:33,080 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 2837 mSDsluCounter, 7276 mSDsCounter, 0 mSdLazyCounter, 4209 mSolverCounterSat, 1357 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2898 SdHoareTripleChecker+Valid, 7399 SdHoareTripleChecker+Invalid, 5566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1357 IncrementalHoareTripleChecker+Valid, 4209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-25 06:15:33,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2898 Valid, 7399 Invalid, 5566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1357 Valid, 4209 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-25 06:15:33,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-12-25 06:15:33,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2023-12-25 06:15:33,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 126 states have (on average 1.007936507936508) internal successors, (127), 127 states have internal predecessors, (127), 2 states have call successors, (2), 1 states have call predecessors, (2), 60 states have return successors, (61), 60 states have call predecessors, (61), 2 states have call successors, (61) [2023-12-25 06:15:33,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 190 transitions. [2023-12-25 06:15:33,083 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 190 transitions. Word has length 358 [2023-12-25 06:15:33,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:15:33,084 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 190 transitions. [2023-12-25 06:15:33,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 123 states, 121 states have (on average 2.0165289256198347) internal successors, (244), 123 states have internal predecessors, (244), 61 states have call successors, (61), 1 states have call predecessors, (61), 59 states have return successors, (118), 59 states have call predecessors, (118), 61 states have call successors, (118) [2023-12-25 06:15:33,084 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 190 transitions. [2023-12-25 06:15:33,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2023-12-25 06:15:33,085 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:15:33,085 INFO L195 NwaCegarLoop]: trace histogram [60, 60, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:15:33,111 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 (35)] Forceful destruction successful, exit code 0 [2023-12-25 06:15:33,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /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 [2023-12-25 06:15:33,294 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:15:33,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:15:33,294 INFO L85 PathProgramCache]: Analyzing trace with hash 185141975, now seen corresponding path program 34 times [2023-12-25 06:15:33,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:15:33,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284359965] [2023-12-25 06:15:33,295 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-25 06:15:33,295 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:15:33,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:15:33,296 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2023-12-25 06:15:33,297 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 (36)] Waiting until timeout for monitored process [2023-12-25 06:15:36,178 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-25 06:15:36,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:15:36,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 123 conjunts are in the unsatisfiable core [2023-12-25 06:15:36,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:15:37,663 INFO L134 CoverageAnalysis]: Checked inductivity of 10502 backedges. 0 proven. 5251 refuted. 0 times theorem prover too weak. 5251 trivial. 0 not checked. [2023-12-25 06:15:37,663 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:15:59,371 INFO L134 CoverageAnalysis]: Checked inductivity of 10502 backedges. 0 proven. 8732 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2023-12-25 06:15:59,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:15:59,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284359965] [2023-12-25 06:15:59,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284359965] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:15:59,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:15:59,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 123] total 125 [2023-12-25 06:15:59,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451016599] [2023-12-25 06:15:59,372 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:15:59,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 125 states [2023-12-25 06:15:59,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:15:59,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2023-12-25 06:15:59,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=368, Invalid=15132, Unknown=0, NotChecked=0, Total=15500 [2023-12-25 06:15:59,385 INFO L87 Difference]: Start difference. First operand 189 states and 190 transitions. Second operand has 125 states, 123 states have (on average 2.016260162601626) internal successors, (248), 125 states have internal predecessors, (248), 62 states have call successors, (62), 1 states have call predecessors, (62), 60 states have return successors, (120), 60 states have call predecessors, (120), 62 states have call successors, (120) [2023-12-25 06:16:02,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:16:02,833 INFO L93 Difference]: Finished difference Result 196 states and 197 transitions. [2023-12-25 06:16:02,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-12-25 06:16:02,834 INFO L78 Accepts]: Start accepts. Automaton has has 125 states, 123 states have (on average 2.016260162601626) internal successors, (248), 125 states have internal predecessors, (248), 62 states have call successors, (62), 1 states have call predecessors, (62), 60 states have return successors, (120), 60 states have call predecessors, (120), 62 states have call successors, (120) Word has length 364 [2023-12-25 06:16:02,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:16:02,835 INFO L225 Difference]: With dead ends: 196 [2023-12-25 06:16:02,835 INFO L226 Difference]: Without dead ends: 192 [2023-12-25 06:16:02,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 786 GetRequests, 603 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3600 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=4208, Invalid=29832, Unknown=0, NotChecked=0, Total=34040 [2023-12-25 06:16:02,837 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 6968 mSDsluCounter, 7388 mSDsCounter, 0 mSdLazyCounter, 4259 mSolverCounterSat, 3421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7030 SdHoareTripleChecker+Valid, 7513 SdHoareTripleChecker+Invalid, 7680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3421 IncrementalHoareTripleChecker+Valid, 4259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-25 06:16:02,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7030 Valid, 7513 Invalid, 7680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3421 Valid, 4259 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-25 06:16:02,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-12-25 06:16:02,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2023-12-25 06:16:02,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 128 states have (on average 1.0078125) internal successors, (129), 129 states have internal predecessors, (129), 2 states have call successors, (2), 1 states have call predecessors, (2), 61 states have return successors, (62), 61 states have call predecessors, (62), 2 states have call successors, (62) [2023-12-25 06:16:02,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 193 transitions. [2023-12-25 06:16:02,851 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 193 transitions. Word has length 364 [2023-12-25 06:16:02,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:16:02,851 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 193 transitions. [2023-12-25 06:16:02,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 125 states, 123 states have (on average 2.016260162601626) internal successors, (248), 125 states have internal predecessors, (248), 62 states have call successors, (62), 1 states have call predecessors, (62), 60 states have return successors, (120), 60 states have call predecessors, (120), 62 states have call successors, (120) [2023-12-25 06:16:02,851 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 193 transitions. [2023-12-25 06:16:02,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2023-12-25 06:16:02,852 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:16:02,853 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 60, 60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:16:02,864 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 (36)] Ended with exit code 0 [2023-12-25 06:16:03,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /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 [2023-12-25 06:16:03,066 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:16:03,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:16:03,066 INFO L85 PathProgramCache]: Analyzing trace with hash -655571417, now seen corresponding path program 35 times [2023-12-25 06:16:03,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:16:03,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [35751861] [2023-12-25 06:16:03,067 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-25 06:16:03,067 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:16:03,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:16:03,068 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2023-12-25 06:16:03,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-25 06:16:06,367 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 61 check-sat command(s) [2023-12-25 06:16:06,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:16:06,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 125 conjunts are in the unsatisfiable core [2023-12-25 06:16:06,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:16:07,670 INFO L134 CoverageAnalysis]: Checked inductivity of 10860 backedges. 0 proven. 5430 refuted. 0 times theorem prover too weak. 5430 trivial. 0 not checked. [2023-12-25 06:16:07,670 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:16:29,384 INFO L134 CoverageAnalysis]: Checked inductivity of 10860 backedges. 0 proven. 9030 refuted. 0 times theorem prover too weak. 1830 trivial. 0 not checked. [2023-12-25 06:16:29,384 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:16:29,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [35751861] [2023-12-25 06:16:29,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [35751861] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:16:29,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:16:29,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 125] total 127 [2023-12-25 06:16:29,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105028465] [2023-12-25 06:16:29,385 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:16:29,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 127 states [2023-12-25 06:16:29,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:16:29,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2023-12-25 06:16:29,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=374, Invalid=15628, Unknown=0, NotChecked=0, Total=16002 [2023-12-25 06:16:29,388 INFO L87 Difference]: Start difference. First operand 192 states and 193 transitions. Second operand has 127 states, 125 states have (on average 2.016) internal successors, (252), 127 states have internal predecessors, (252), 63 states have call successors, (63), 1 states have call predecessors, (63), 61 states have return successors, (122), 61 states have call predecessors, (122), 63 states have call successors, (122) [2023-12-25 06:16:32,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:16:32,354 INFO L93 Difference]: Finished difference Result 199 states and 200 transitions. [2023-12-25 06:16:32,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-12-25 06:16:32,355 INFO L78 Accepts]: Start accepts. Automaton has has 127 states, 125 states have (on average 2.016) internal successors, (252), 127 states have internal predecessors, (252), 63 states have call successors, (63), 1 states have call predecessors, (63), 61 states have return successors, (122), 61 states have call predecessors, (122), 63 states have call successors, (122) Word has length 370 [2023-12-25 06:16:32,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:16:32,356 INFO L225 Difference]: With dead ends: 199 [2023-12-25 06:16:32,356 INFO L226 Difference]: Without dead ends: 195 [2023-12-25 06:16:32,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 799 GetRequests, 613 SyntacticMatches, 0 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3721 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=4339, Invalid=30817, Unknown=0, NotChecked=0, Total=35156 [2023-12-25 06:16:32,359 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 1591 mSDsluCounter, 7782 mSDsCounter, 0 mSdLazyCounter, 4499 mSolverCounterSat, 732 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 7909 SdHoareTripleChecker+Invalid, 5231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 732 IncrementalHoareTripleChecker+Valid, 4499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-25 06:16:32,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1654 Valid, 7909 Invalid, 5231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [732 Valid, 4499 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-25 06:16:32,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-12-25 06:16:32,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2023-12-25 06:16:32,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 130 states have (on average 1.0076923076923077) internal successors, (131), 131 states have internal predecessors, (131), 2 states have call successors, (2), 1 states have call predecessors, (2), 62 states have return successors, (63), 62 states have call predecessors, (63), 2 states have call successors, (63) [2023-12-25 06:16:32,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 196 transitions. [2023-12-25 06:16:32,363 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 196 transitions. Word has length 370 [2023-12-25 06:16:32,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:16:32,364 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 196 transitions. [2023-12-25 06:16:32,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 127 states, 125 states have (on average 2.016) internal successors, (252), 127 states have internal predecessors, (252), 63 states have call successors, (63), 1 states have call predecessors, (63), 61 states have return successors, (122), 61 states have call predecessors, (122), 63 states have call successors, (122) [2023-12-25 06:16:32,364 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 196 transitions. [2023-12-25 06:16:32,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2023-12-25 06:16:32,365 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:16:32,365 INFO L195 NwaCegarLoop]: trace histogram [62, 62, 61, 61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:16:32,386 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 (37)] Forceful destruction successful, exit code 0 [2023-12-25 06:16:32,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /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 [2023-12-25 06:16:32,575 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:16:32,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:16:32,576 INFO L85 PathProgramCache]: Analyzing trace with hash 456219159, now seen corresponding path program 36 times [2023-12-25 06:16:32,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:16:32,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1064603824] [2023-12-25 06:16:32,576 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-25 06:16:32,576 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 [2023-12-25 06:16:32,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:16:32,577 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2023-12-25 06:16:32,578 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 (38)] Waiting until timeout for monitored process [2023-12-25 06:16:36,094 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 62 check-sat command(s) [2023-12-25 06:16:36,094 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:16:36,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 127 conjunts are in the unsatisfiable core [2023-12-25 06:16:36,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:16:37,610 INFO L134 CoverageAnalysis]: Checked inductivity of 11224 backedges. 0 proven. 5612 refuted. 0 times theorem prover too weak. 5612 trivial. 0 not checked. [2023-12-25 06:16:37,610 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:17:01,751 INFO L134 CoverageAnalysis]: Checked inductivity of 11224 backedges. 0 proven. 9333 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2023-12-25 06:17:01,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:17:01,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1064603824] [2023-12-25 06:17:01,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1064603824] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:17:01,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:17:01,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 127] total 129 [2023-12-25 06:17:01,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790663745] [2023-12-25 06:17:01,752 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:17:01,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 129 states [2023-12-25 06:17:01,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:17:01,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 129 interpolants. [2023-12-25 06:17:01,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=16132, Unknown=0, NotChecked=0, Total=16512 [2023-12-25 06:17:01,754 INFO L87 Difference]: Start difference. First operand 195 states and 196 transitions. Second operand has 129 states, 127 states have (on average 2.015748031496063) internal successors, (256), 129 states have internal predecessors, (256), 64 states have call successors, (64), 1 states have call predecessors, (64), 62 states have return successors, (124), 62 states have call predecessors, (124), 64 states have call successors, (124) [2023-12-25 06:17:05,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:17:05,707 INFO L93 Difference]: Finished difference Result 202 states and 203 transitions. [2023-12-25 06:17:05,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-12-25 06:17:05,707 INFO L78 Accepts]: Start accepts. Automaton has has 129 states, 127 states have (on average 2.015748031496063) internal successors, (256), 129 states have internal predecessors, (256), 64 states have call successors, (64), 1 states have call predecessors, (64), 62 states have return successors, (124), 62 states have call predecessors, (124), 64 states have call successors, (124) Word has length 376 [2023-12-25 06:17:05,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:17:05,708 INFO L225 Difference]: With dead ends: 202 [2023-12-25 06:17:05,708 INFO L226 Difference]: Without dead ends: 198 [2023-12-25 06:17:05,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 812 GetRequests, 623 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3844 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=4472, Invalid=31818, Unknown=0, NotChecked=0, Total=36290 [2023-12-25 06:17:05,711 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 6329 mSDsluCounter, 8032 mSDsCounter, 0 mSdLazyCounter, 4632 mSolverCounterSat, 3101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6393 SdHoareTripleChecker+Valid, 8161 SdHoareTripleChecker+Invalid, 7733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3101 IncrementalHoareTripleChecker+Valid, 4632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-25 06:17:05,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6393 Valid, 8161 Invalid, 7733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3101 Valid, 4632 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-25 06:17:05,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-12-25 06:17:05,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2023-12-25 06:17:05,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 132 states have (on average 1.0075757575757576) internal successors, (133), 133 states have internal predecessors, (133), 2 states have call successors, (2), 1 states have call predecessors, (2), 63 states have return successors, (64), 63 states have call predecessors, (64), 2 states have call successors, (64) [2023-12-25 06:17:05,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 199 transitions. [2023-12-25 06:17:05,714 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 199 transitions. Word has length 376 [2023-12-25 06:17:05,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:17:05,714 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 199 transitions. [2023-12-25 06:17:05,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 129 states, 127 states have (on average 2.015748031496063) internal successors, (256), 129 states have internal predecessors, (256), 64 states have call successors, (64), 1 states have call predecessors, (64), 62 states have return successors, (124), 62 states have call predecessors, (124), 64 states have call successors, (124) [2023-12-25 06:17:05,715 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 199 transitions. [2023-12-25 06:17:05,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2023-12-25 06:17:05,716 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:17:05,716 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 62, 62, 62, 62, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:17:05,725 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 (38)] Forceful destruction successful, exit code 0 [2023-12-25 06:17:05,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /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 [2023-12-25 06:17:05,925 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:17:05,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:17:05,925 INFO L85 PathProgramCache]: Analyzing trace with hash -222502553, now seen corresponding path program 37 times [2023-12-25 06:17:05,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:17:05,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2008539647] [2023-12-25 06:17:05,926 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-25 06:17:05,926 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 [2023-12-25 06:17:05,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:17:05,927 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2023-12-25 06:17:05,961 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 (39)] Waiting until timeout for monitored process [2023-12-25 06:17:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:17:09,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 129 conjunts are in the unsatisfiable core [2023-12-25 06:17:09,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:17:11,054 INFO L134 CoverageAnalysis]: Checked inductivity of 11594 backedges. 0 proven. 5797 refuted. 0 times theorem prover too weak. 5797 trivial. 0 not checked. [2023-12-25 06:17:11,054 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:17:32,924 INFO L134 CoverageAnalysis]: Checked inductivity of 11594 backedges. 0 proven. 9641 refuted. 0 times theorem prover too weak. 1953 trivial. 0 not checked. [2023-12-25 06:17:32,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:17:32,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2008539647] [2023-12-25 06:17:32,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2008539647] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:17:32,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:17:32,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 129] total 131 [2023-12-25 06:17:32,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838648952] [2023-12-25 06:17:32,925 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:17:32,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 131 states [2023-12-25 06:17:32,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:17:32,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2023-12-25 06:17:32,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=386, Invalid=16644, Unknown=0, NotChecked=0, Total=17030 [2023-12-25 06:17:32,927 INFO L87 Difference]: Start difference. First operand 198 states and 199 transitions. Second operand has 131 states, 129 states have (on average 2.0155038759689923) internal successors, (260), 131 states have internal predecessors, (260), 65 states have call successors, (65), 1 states have call predecessors, (65), 63 states have return successors, (126), 63 states have call predecessors, (126), 65 states have call successors, (126) [2023-12-25 06:17:36,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:17:36,076 INFO L93 Difference]: Finished difference Result 205 states and 206 transitions. [2023-12-25 06:17:36,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-12-25 06:17:36,076 INFO L78 Accepts]: Start accepts. Automaton has has 131 states, 129 states have (on average 2.0155038759689923) internal successors, (260), 131 states have internal predecessors, (260), 65 states have call successors, (65), 1 states have call predecessors, (65), 63 states have return successors, (126), 63 states have call predecessors, (126), 65 states have call successors, (126) Word has length 382 [2023-12-25 06:17:36,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:17:36,077 INFO L225 Difference]: With dead ends: 205 [2023-12-25 06:17:36,077 INFO L226 Difference]: Without dead ends: 201 [2023-12-25 06:17:36,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 825 GetRequests, 633 SyntacticMatches, 0 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3969 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=4607, Invalid=32835, Unknown=0, NotChecked=0, Total=37442 [2023-12-25 06:17:36,080 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 7187 mSDsluCounter, 8280 mSDsCounter, 0 mSdLazyCounter, 4757 mSolverCounterSat, 3528 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7252 SdHoareTripleChecker+Valid, 8411 SdHoareTripleChecker+Invalid, 8285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3528 IncrementalHoareTripleChecker+Valid, 4757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-25 06:17:36,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7252 Valid, 8411 Invalid, 8285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3528 Valid, 4757 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-25 06:17:36,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-12-25 06:17:36,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2023-12-25 06:17:36,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 134 states have (on average 1.007462686567164) internal successors, (135), 135 states have internal predecessors, (135), 2 states have call successors, (2), 1 states have call predecessors, (2), 64 states have return successors, (65), 64 states have call predecessors, (65), 2 states have call successors, (65) [2023-12-25 06:17:36,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 202 transitions. [2023-12-25 06:17:36,083 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 202 transitions. Word has length 382 [2023-12-25 06:17:36,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:17:36,083 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 202 transitions. [2023-12-25 06:17:36,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 131 states, 129 states have (on average 2.0155038759689923) internal successors, (260), 131 states have internal predecessors, (260), 65 states have call successors, (65), 1 states have call predecessors, (65), 63 states have return successors, (126), 63 states have call predecessors, (126), 65 states have call successors, (126) [2023-12-25 06:17:36,083 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 202 transitions. [2023-12-25 06:17:36,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2023-12-25 06:17:36,085 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:17:36,085 INFO L195 NwaCegarLoop]: trace histogram [64, 64, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:17:36,108 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 (39)] Ended with exit code 0 [2023-12-25 06:17:36,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /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 [2023-12-25 06:17:36,309 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:17:36,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:17:36,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1572452009, now seen corresponding path program 38 times [2023-12-25 06:17:36,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:17:36,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208128081] [2023-12-25 06:17:36,310 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 06:17:36,310 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 [2023-12-25 06:17:36,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:17:36,311 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2023-12-25 06:17:36,313 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 (40)] Waiting until timeout for monitored process [2023-12-25 06:17:40,056 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 06:17:40,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:17:40,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 131 conjunts are in the unsatisfiable core [2023-12-25 06:17:40,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:17:41,501 INFO L134 CoverageAnalysis]: Checked inductivity of 11970 backedges. 0 proven. 5985 refuted. 0 times theorem prover too weak. 5985 trivial. 0 not checked. [2023-12-25 06:17:41,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:18:08,700 INFO L134 CoverageAnalysis]: Checked inductivity of 11970 backedges. 0 proven. 9954 refuted. 0 times theorem prover too weak. 2016 trivial. 0 not checked. [2023-12-25 06:18:08,700 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:18:08,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208128081] [2023-12-25 06:18:08,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1208128081] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:18:08,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:18:08,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 131] total 133 [2023-12-25 06:18:08,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305598099] [2023-12-25 06:18:08,700 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:18:08,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 133 states [2023-12-25 06:18:08,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:18:08,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 133 interpolants. [2023-12-25 06:18:08,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=17164, Unknown=0, NotChecked=0, Total=17556 [2023-12-25 06:18:08,703 INFO L87 Difference]: Start difference. First operand 201 states and 202 transitions. Second operand has 133 states, 131 states have (on average 2.015267175572519) internal successors, (264), 133 states have internal predecessors, (264), 66 states have call successors, (66), 1 states have call predecessors, (66), 64 states have return successors, (128), 64 states have call predecessors, (128), 66 states have call successors, (128) [2023-12-25 06:18:13,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:18:13,404 INFO L93 Difference]: Finished difference Result 208 states and 209 transitions. [2023-12-25 06:18:13,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-12-25 06:18:13,405 INFO L78 Accepts]: Start accepts. Automaton has has 133 states, 131 states have (on average 2.015267175572519) internal successors, (264), 133 states have internal predecessors, (264), 66 states have call successors, (66), 1 states have call predecessors, (66), 64 states have return successors, (128), 64 states have call predecessors, (128), 66 states have call successors, (128) Word has length 388 [2023-12-25 06:18:13,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:18:13,406 INFO L225 Difference]: With dead ends: 208 [2023-12-25 06:18:13,406 INFO L226 Difference]: Without dead ends: 204 [2023-12-25 06:18:13,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 838 GetRequests, 643 SyntacticMatches, 0 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4096 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=4744, Invalid=33868, Unknown=0, NotChecked=0, Total=38612 [2023-12-25 06:18:13,410 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 5256 mSDsluCounter, 8403 mSDsCounter, 0 mSdLazyCounter, 4816 mSolverCounterSat, 2561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5322 SdHoareTripleChecker+Valid, 8536 SdHoareTripleChecker+Invalid, 7377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2561 IncrementalHoareTripleChecker+Valid, 4816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-25 06:18:13,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5322 Valid, 8536 Invalid, 7377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2561 Valid, 4816 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-25 06:18:13,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-12-25 06:18:13,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2023-12-25 06:18:13,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 136 states have (on average 1.0073529411764706) internal successors, (137), 137 states have internal predecessors, (137), 2 states have call successors, (2), 1 states have call predecessors, (2), 65 states have return successors, (66), 65 states have call predecessors, (66), 2 states have call successors, (66) [2023-12-25 06:18:13,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 205 transitions. [2023-12-25 06:18:13,414 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 205 transitions. Word has length 388 [2023-12-25 06:18:13,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:18:13,414 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 205 transitions. [2023-12-25 06:18:13,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 133 states, 131 states have (on average 2.015267175572519) internal successors, (264), 133 states have internal predecessors, (264), 66 states have call successors, (66), 1 states have call predecessors, (66), 64 states have return successors, (128), 64 states have call predecessors, (128), 66 states have call successors, (128) [2023-12-25 06:18:13,415 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 205 transitions. [2023-12-25 06:18:13,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2023-12-25 06:18:13,416 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:18:13,416 INFO L195 NwaCegarLoop]: trace histogram [65, 65, 64, 64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:18:13,427 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 (40)] Forceful destruction successful, exit code 0 [2023-12-25 06:18:13,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /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 [2023-12-25 06:18:13,628 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:18:13,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:18:13,628 INFO L85 PathProgramCache]: Analyzing trace with hash -513499993, now seen corresponding path program 39 times [2023-12-25 06:18:13,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:18:13,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877086069] [2023-12-25 06:18:13,629 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-25 06:18:13,629 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 [2023-12-25 06:18:13,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:18:13,630 INFO L229 MonitoredProcess]: Starting monitored process 41 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) [2023-12-25 06:18:13,668 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 (41)] Waiting until timeout for monitored process [2023-12-25 06:18:18,080 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 65 check-sat command(s) [2023-12-25 06:18:18,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:18:18,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 133 conjunts are in the unsatisfiable core [2023-12-25 06:18:18,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:18:20,098 INFO L134 CoverageAnalysis]: Checked inductivity of 12352 backedges. 0 proven. 6176 refuted. 0 times theorem prover too weak. 6176 trivial. 0 not checked. [2023-12-25 06:18:20,098 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:18:53,893 INFO L134 CoverageAnalysis]: Checked inductivity of 12352 backedges. 0 proven. 10272 refuted. 0 times theorem prover too weak. 2080 trivial. 0 not checked. [2023-12-25 06:18:53,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:18:53,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877086069] [2023-12-25 06:18:53,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877086069] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:18:53,894 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:18:53,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 133] total 135 [2023-12-25 06:18:53,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522606694] [2023-12-25 06:18:53,894 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:18:53,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 135 states [2023-12-25 06:18:53,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:18:53,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 135 interpolants. [2023-12-25 06:18:53,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=398, Invalid=17692, Unknown=0, NotChecked=0, Total=18090 [2023-12-25 06:18:53,897 INFO L87 Difference]: Start difference. First operand 204 states and 205 transitions. Second operand has 135 states, 133 states have (on average 2.0150375939849625) internal successors, (268), 135 states have internal predecessors, (268), 67 states have call successors, (67), 1 states have call predecessors, (67), 65 states have return successors, (130), 65 states have call predecessors, (130), 67 states have call successors, (130) [2023-12-25 06:18:58,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:18:58,048 INFO L93 Difference]: Finished difference Result 211 states and 212 transitions. [2023-12-25 06:18:58,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2023-12-25 06:18:58,048 INFO L78 Accepts]: Start accepts. Automaton has has 135 states, 133 states have (on average 2.0150375939849625) internal successors, (268), 135 states have internal predecessors, (268), 67 states have call successors, (67), 1 states have call predecessors, (67), 65 states have return successors, (130), 65 states have call predecessors, (130), 67 states have call successors, (130) Word has length 394 [2023-12-25 06:18:58,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:18:58,064 INFO L225 Difference]: With dead ends: 211 [2023-12-25 06:18:58,064 INFO L226 Difference]: Without dead ends: 207 [2023-12-25 06:18:58,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 851 GetRequests, 653 SyntacticMatches, 0 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4225 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=4883, Invalid=34917, Unknown=0, NotChecked=0, Total=39800 [2023-12-25 06:18:58,076 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 6375 mSDsluCounter, 8824 mSDsCounter, 0 mSdLazyCounter, 5073 mSolverCounterSat, 3120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6442 SdHoareTripleChecker+Valid, 8959 SdHoareTripleChecker+Invalid, 8193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3120 IncrementalHoareTripleChecker+Valid, 5073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-25 06:18:58,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6442 Valid, 8959 Invalid, 8193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3120 Valid, 5073 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-25 06:18:58,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-12-25 06:18:58,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2023-12-25 06:18:58,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 138 states have (on average 1.0072463768115942) internal successors, (139), 139 states have internal predecessors, (139), 2 states have call successors, (2), 1 states have call predecessors, (2), 66 states have return successors, (67), 66 states have call predecessors, (67), 2 states have call successors, (67) [2023-12-25 06:18:58,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 208 transitions. [2023-12-25 06:18:58,080 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 208 transitions. Word has length 394 [2023-12-25 06:18:58,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:18:58,080 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 208 transitions. [2023-12-25 06:18:58,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 135 states, 133 states have (on average 2.0150375939849625) internal successors, (268), 135 states have internal predecessors, (268), 67 states have call successors, (67), 1 states have call predecessors, (67), 65 states have return successors, (130), 65 states have call predecessors, (130), 67 states have call successors, (130) [2023-12-25 06:18:58,081 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 208 transitions. [2023-12-25 06:18:58,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2023-12-25 06:18:58,082 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:18:58,082 INFO L195 NwaCegarLoop]: trace histogram [66, 66, 65, 65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:18:58,099 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 (41)] Ended with exit code 0 [2023-12-25 06:18:58,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /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 [2023-12-25 06:18:58,283 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:18:58,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:18:58,283 INFO L85 PathProgramCache]: Analyzing trace with hash -583542633, now seen corresponding path program 40 times [2023-12-25 06:18:58,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:18:58,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340933549] [2023-12-25 06:18:58,284 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-25 06:18:58,284 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 [2023-12-25 06:18:58,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:18:58,285 INFO L229 MonitoredProcess]: Starting monitored process 42 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) [2023-12-25 06:18:58,287 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 (42)] Waiting until timeout for monitored process [2023-12-25 06:19:01,956 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-25 06:19:01,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:19:01,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 135 conjunts are in the unsatisfiable core [2023-12-25 06:19:01,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:19:04,217 INFO L134 CoverageAnalysis]: Checked inductivity of 12740 backedges. 0 proven. 6370 refuted. 0 times theorem prover too weak. 6370 trivial. 0 not checked. [2023-12-25 06:19:04,217 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:19:31,936 INFO L134 CoverageAnalysis]: Checked inductivity of 12740 backedges. 0 proven. 10595 refuted. 0 times theorem prover too weak. 2145 trivial. 0 not checked. [2023-12-25 06:19:31,937 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:19:31,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [340933549] [2023-12-25 06:19:31,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [340933549] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:19:31,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:19:31,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 135] total 137 [2023-12-25 06:19:31,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972424295] [2023-12-25 06:19:31,937 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:19:31,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 137 states [2023-12-25 06:19:31,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:19:31,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2023-12-25 06:19:31,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=404, Invalid=18228, Unknown=0, NotChecked=0, Total=18632 [2023-12-25 06:19:31,939 INFO L87 Difference]: Start difference. First operand 207 states and 208 transitions. Second operand has 137 states, 135 states have (on average 2.0148148148148146) internal successors, (272), 137 states have internal predecessors, (272), 68 states have call successors, (68), 1 states have call predecessors, (68), 66 states have return successors, (132), 66 states have call predecessors, (132), 68 states have call successors, (132) [2023-12-25 06:19:36,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:19:36,673 INFO L93 Difference]: Finished difference Result 214 states and 215 transitions. [2023-12-25 06:19:36,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-12-25 06:19:36,674 INFO L78 Accepts]: Start accepts. Automaton has has 137 states, 135 states have (on average 2.0148148148148146) internal successors, (272), 137 states have internal predecessors, (272), 68 states have call successors, (68), 1 states have call predecessors, (68), 66 states have return successors, (132), 66 states have call predecessors, (132), 68 states have call successors, (132) Word has length 400 [2023-12-25 06:19:36,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:19:36,675 INFO L225 Difference]: With dead ends: 214 [2023-12-25 06:19:36,675 INFO L226 Difference]: Without dead ends: 210 [2023-12-25 06:19:36,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 864 GetRequests, 663 SyntacticMatches, 0 SemanticMatches, 201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4356 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=5024, Invalid=35982, Unknown=0, NotChecked=0, Total=41006 [2023-12-25 06:19:36,680 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 3440 mSDsluCounter, 8948 mSDsCounter, 0 mSdLazyCounter, 5129 mSolverCounterSat, 1652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3508 SdHoareTripleChecker+Valid, 9085 SdHoareTripleChecker+Invalid, 6781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1652 IncrementalHoareTripleChecker+Valid, 5129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-25 06:19:36,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3508 Valid, 9085 Invalid, 6781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1652 Valid, 5129 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-25 06:19:36,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-12-25 06:19:36,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2023-12-25 06:19:36,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 140 states have (on average 1.0071428571428571) internal successors, (141), 141 states have internal predecessors, (141), 2 states have call successors, (2), 1 states have call predecessors, (2), 67 states have return successors, (68), 67 states have call predecessors, (68), 2 states have call successors, (68) [2023-12-25 06:19:36,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 211 transitions. [2023-12-25 06:19:36,705 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 211 transitions. Word has length 400 [2023-12-25 06:19:36,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:19:36,705 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 211 transitions. [2023-12-25 06:19:36,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 137 states, 135 states have (on average 2.0148148148148146) internal successors, (272), 137 states have internal predecessors, (272), 68 states have call successors, (68), 1 states have call predecessors, (68), 66 states have return successors, (132), 66 states have call predecessors, (132), 68 states have call successors, (132) [2023-12-25 06:19:36,706 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 211 transitions. [2023-12-25 06:19:36,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2023-12-25 06:19:36,707 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:19:36,707 INFO L195 NwaCegarLoop]: trace histogram [67, 67, 66, 66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:19:36,726 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 (42)] Forceful destruction successful, exit code 0 [2023-12-25 06:19:36,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /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 [2023-12-25 06:19:36,923 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:19:36,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:19:36,923 INFO L85 PathProgramCache]: Analyzing trace with hash 932444135, now seen corresponding path program 41 times [2023-12-25 06:19:36,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:19:36,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696806031] [2023-12-25 06:19:36,924 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-25 06:19:36,924 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 [2023-12-25 06:19:36,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:19:36,925 INFO L229 MonitoredProcess]: Starting monitored process 43 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) [2023-12-25 06:19:36,944 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 (43)] Waiting until timeout for monitored process [2023-12-25 06:19:41,828 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 67 check-sat command(s) [2023-12-25 06:19:41,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:19:41,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 137 conjunts are in the unsatisfiable core [2023-12-25 06:19:41,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:19:44,060 INFO L134 CoverageAnalysis]: Checked inductivity of 13134 backedges. 0 proven. 6567 refuted. 0 times theorem prover too weak. 6567 trivial. 0 not checked. [2023-12-25 06:19:44,060 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:20:17,324 INFO L134 CoverageAnalysis]: Checked inductivity of 13134 backedges. 0 proven. 10923 refuted. 0 times theorem prover too weak. 2211 trivial. 0 not checked. [2023-12-25 06:20:17,324 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:20:17,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1696806031] [2023-12-25 06:20:17,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1696806031] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:20:17,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:20:17,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 137] total 139 [2023-12-25 06:20:17,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155248399] [2023-12-25 06:20:17,325 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:20:17,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 139 states [2023-12-25 06:20:17,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:20:17,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2023-12-25 06:20:17,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=410, Invalid=18772, Unknown=0, NotChecked=0, Total=19182 [2023-12-25 06:20:17,327 INFO L87 Difference]: Start difference. First operand 210 states and 211 transitions. Second operand has 139 states, 137 states have (on average 2.0145985401459856) internal successors, (276), 139 states have internal predecessors, (276), 69 states have call successors, (69), 1 states have call predecessors, (69), 67 states have return successors, (134), 67 states have call predecessors, (134), 69 states have call successors, (134) [2023-12-25 06:20:22,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:20:22,550 INFO L93 Difference]: Finished difference Result 217 states and 218 transitions. [2023-12-25 06:20:22,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2023-12-25 06:20:22,551 INFO L78 Accepts]: Start accepts. Automaton has has 139 states, 137 states have (on average 2.0145985401459856) internal successors, (276), 139 states have internal predecessors, (276), 69 states have call successors, (69), 1 states have call predecessors, (69), 67 states have return successors, (134), 67 states have call predecessors, (134), 69 states have call successors, (134) Word has length 406 [2023-12-25 06:20:22,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:20:22,553 INFO L225 Difference]: With dead ends: 217 [2023-12-25 06:20:22,553 INFO L226 Difference]: Without dead ends: 213 [2023-12-25 06:20:22,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 877 GetRequests, 673 SyntacticMatches, 0 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4489 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=5167, Invalid=37063, Unknown=0, NotChecked=0, Total=42230 [2023-12-25 06:20:22,557 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 4561 mSDsluCounter, 9354 mSDsCounter, 0 mSdLazyCounter, 5347 mSolverCounterSat, 2212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4630 SdHoareTripleChecker+Valid, 9493 SdHoareTripleChecker+Invalid, 7559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2212 IncrementalHoareTripleChecker+Valid, 5347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-25 06:20:22,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4630 Valid, 9493 Invalid, 7559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2212 Valid, 5347 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-25 06:20:22,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-12-25 06:20:22,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2023-12-25 06:20:22,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 142 states have (on average 1.0070422535211268) internal successors, (143), 143 states have internal predecessors, (143), 2 states have call successors, (2), 1 states have call predecessors, (2), 68 states have return successors, (69), 68 states have call predecessors, (69), 2 states have call successors, (69) [2023-12-25 06:20:22,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 214 transitions. [2023-12-25 06:20:22,575 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 214 transitions. Word has length 406 [2023-12-25 06:20:22,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:20:22,575 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 214 transitions. [2023-12-25 06:20:22,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 139 states, 137 states have (on average 2.0145985401459856) internal successors, (276), 139 states have internal predecessors, (276), 69 states have call successors, (69), 1 states have call predecessors, (69), 67 states have return successors, (134), 67 states have call predecessors, (134), 69 states have call successors, (134) [2023-12-25 06:20:22,576 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 214 transitions. [2023-12-25 06:20:22,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2023-12-25 06:20:22,578 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:20:22,578 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 67, 67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:20:22,610 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 (43)] Forceful destruction successful, exit code 0 [2023-12-25 06:20:22,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /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 [2023-12-25 06:20:22,810 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:20:22,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:20:22,810 INFO L85 PathProgramCache]: Analyzing trace with hash 2029389783, now seen corresponding path program 42 times [2023-12-25 06:20:22,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:20:22,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1423052971] [2023-12-25 06:20:22,811 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-25 06:20:22,811 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 [2023-12-25 06:20:22,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:20:22,812 INFO L229 MonitoredProcess]: Starting monitored process 44 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) [2023-12-25 06:20:22,813 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 (44)] Waiting until timeout for monitored process [2023-12-25 06:20:27,612 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 68 check-sat command(s) [2023-12-25 06:20:27,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 06:20:27,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 139 conjunts are in the unsatisfiable core [2023-12-25 06:20:27,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:20:29,370 INFO L134 CoverageAnalysis]: Checked inductivity of 13534 backedges. 0 proven. 6767 refuted. 0 times theorem prover too weak. 6767 trivial. 0 not checked. [2023-12-25 06:20:29,371 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-25 06:20:31,005 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-25 06:20:31,013 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 (44)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-25 06:20:31,014 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 [2023-12-25 06:20:31,024 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 (44)] Forceful destruction successful, exit code 0 [2023-12-25 06:20:31,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /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 [2023-12-25 06:20:31,213 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 413 with TraceHistMax 68,while TraceCheckSpWp was constructing backward predicates,while TransFormulaUtils was doing sequential composition of 5 TransFormulas,while SimplifyDDA2 was simplifying a ∧-4-1 term,while PolyPacSimplificationTermWalker was simplifying a ∧-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ATOM-1 context. [2023-12-25 06:20:31,217 INFO L445 BasicCegarLoop]: Path program histogram: [42, 1] [2023-12-25 06:20:31,219 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-25 06:20:31,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 06:20:31 BoogieIcfgContainer [2023-12-25 06:20:31,238 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-25 06:20:31,240 INFO L158 Benchmark]: Toolchain (without parser) took 868650.20ms. Allocated memory was 186.6MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 134.3MB in the beginning and 444.8MB in the end (delta: -310.5MB). Peak memory consumption was 721.9MB. Max. memory is 8.0GB. [2023-12-25 06:20:31,244 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 186.6MB. Free memory was 135.9MB in the beginning and 135.8MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-25 06:20:31,244 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.37ms. Allocated memory is still 186.6MB. Free memory was 134.0MB in the beginning and 123.2MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-25 06:20:31,244 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.09ms. Allocated memory is still 186.6MB. Free memory was 123.2MB in the beginning and 121.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-25 06:20:31,244 INFO L158 Benchmark]: Boogie Preprocessor took 21.36ms. Allocated memory is still 186.6MB. Free memory was 121.7MB in the beginning and 120.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-25 06:20:31,244 INFO L158 Benchmark]: RCFGBuilder took 360.31ms. Allocated memory is still 186.6MB. Free memory was 120.0MB in the beginning and 109.6MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-25 06:20:31,244 INFO L158 Benchmark]: TraceAbstraction took 868063.69ms. Allocated memory was 186.6MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 108.9MB in the beginning and 444.8MB in the end (delta: -336.0MB). Peak memory consumption was 696.7MB. Max. memory is 8.0GB. [2023-12-25 06:20:31,245 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 186.6MB. Free memory was 135.9MB in the beginning and 135.8MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 172.37ms. Allocated memory is still 186.6MB. Free memory was 134.0MB in the beginning and 123.2MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.09ms. Allocated memory is still 186.6MB. Free memory was 123.2MB in the beginning and 121.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.36ms. Allocated memory is still 186.6MB. Free memory was 121.7MB in the beginning and 120.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 360.31ms. Allocated memory is still 186.6MB. Free memory was 120.0MB in the beginning and 109.6MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 868063.69ms. Allocated memory was 186.6MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 108.9MB in the beginning and 444.8MB in the end (delta: -336.0MB). Peak memory consumption was 696.7MB. 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: 35]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 35). Cancelled while NwaCegarLoop was analyzing trace of length 413 with TraceHistMax 68,while TraceCheckSpWp was constructing backward predicates,while TransFormulaUtils was doing sequential composition of 5 TransFormulas,while SimplifyDDA2 was simplifying a ∧-4-1 term,while PolyPacSimplificationTermWalker was simplifying a ∧-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 868.0s, OverallIterations: 43, TraceHistogramMax: 68, PathProgramHistogramMax: 42, EmptinessCheckTime: 0.1s, AutomataDifference: 97.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97629 SdHoareTripleChecker+Valid, 48.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 95724 mSDsluCounter, 198487 SdHoareTripleChecker+Invalid, 41.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 194645 mSDsCounter, 45983 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116118 IncrementalHoareTripleChecker+Invalid, 162101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45983 mSolverCounterUnsat, 3842 mSDtfsCounter, 116118 mSolverCounterSat, 0.8s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23931 GetRequests, 18218 SyntacticMatches, 0 SemanticMatches, 5713 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93808 ImplicationChecksByTransitivity, 168.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=213occurred in iteration=42, InterpolantAutomatonStates: 2089, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 42 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 7.6s SatisfiabilityAnalysisTime, 684.9s InterpolantComputationTime, 11082 NumberOfCodeBlocks, 11082 NumberOfCodeBlocksAsserted, 945 NumberOfCheckSat, 22071 ConstructedInterpolants, 0 QuantifiedInterpolants, 76982 SizeOfPredicates, 1801 NumberOfNonLiveVariables, 15266 ConjunctsInSsa, 3800 ConjunctsInUnsatCore, 83 InterpolantComputations, 1 PerfectInterpolantSequences, 179801/536804 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