/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/bitvector/s3_srvr_2a_alt.BV.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 21:29:58,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 21:29:58,298 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-21 21:29:58,302 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 21:29:58,303 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 21:29:58,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 21:29:58,330 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 21:29:58,330 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 21:29:58,331 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 21:29:58,334 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 21:29:58,334 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 21:29:58,334 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 21:29:58,334 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 21:29:58,335 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 21:29:58,336 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 21:29:58,336 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 21:29:58,336 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 21:29:58,336 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 21:29:58,336 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 21:29:58,337 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 21:29:58,338 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 21:29:58,338 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 21:29:58,338 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 21:29:58,338 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-21 21:29:58,338 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-21 21:29:58,338 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 21:29:58,339 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-21 21:29:58,339 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 21:29:58,339 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 21:29:58,339 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 21:29:58,340 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 21:29:58,340 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 21:29:58,340 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 21:29:58,340 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 21:29:58,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 21:29:58,341 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 21:29:58,341 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 21:29:58,341 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 21:29:58,341 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-21 21:29:58,341 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-21 21:29:58,341 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 21:29:58,341 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 21:29:58,342 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 21:29:58,342 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 21:29:58,342 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 21:29:58,342 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-21 21:29:58,343 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-21 21:29:58,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 21:29:58,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 21:29:58,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 21:29:58,543 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 21:29:58,543 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 21:29:58,545 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_srvr_2a_alt.BV.c.cil.c [2023-12-21 21:29:59,551 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 21:29:59,705 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 21:29:59,705 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_srvr_2a_alt.BV.c.cil.c [2023-12-21 21:29:59,713 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/047d5f712/da0c8f25371c45a08e9bdca2479c645d/FLAG311d165cd [2023-12-21 21:29:59,723 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/047d5f712/da0c8f25371c45a08e9bdca2479c645d [2023-12-21 21:29:59,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 21:29:59,728 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 21:29:59,730 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 21:29:59,730 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 21:29:59,733 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 21:29:59,734 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:29:59" (1/1) ... [2023-12-21 21:29:59,734 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5125f981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:59, skipping insertion in model container [2023-12-21 21:29:59,734 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:29:59" (1/1) ... [2023-12-21 21:29:59,773 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 21:29:59,922 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_srvr_2a_alt.BV.c.cil.c[44811,44824] [2023-12-21 21:29:59,927 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 21:29:59,934 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 21:29:59,971 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_srvr_2a_alt.BV.c.cil.c[44811,44824] [2023-12-21 21:29:59,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 21:29:59,982 INFO L206 MainTranslator]: Completed translation [2023-12-21 21:29:59,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:59 WrapperNode [2023-12-21 21:29:59,982 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 21:29:59,983 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 21:29:59,983 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 21:29:59,983 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 21:29:59,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:59" (1/1) ... [2023-12-21 21:29:59,994 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:59" (1/1) ... [2023-12-21 21:30:00,013 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 526 [2023-12-21 21:30:00,014 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 21:30:00,014 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 21:30:00,014 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 21:30:00,015 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 21:30:00,022 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:59" (1/1) ... [2023-12-21 21:30:00,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:59" (1/1) ... [2023-12-21 21:30:00,026 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:59" (1/1) ... [2023-12-21 21:30:00,034 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]. [2023-12-21 21:30:00,034 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:59" (1/1) ... [2023-12-21 21:30:00,034 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:59" (1/1) ... [2023-12-21 21:30:00,039 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:59" (1/1) ... [2023-12-21 21:30:00,042 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:59" (1/1) ... [2023-12-21 21:30:00,044 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:59" (1/1) ... [2023-12-21 21:30:00,045 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:59" (1/1) ... [2023-12-21 21:30:00,048 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 21:30:00,048 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 21:30:00,048 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 21:30:00,049 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 21:30:00,049 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:59" (1/1) ... [2023-12-21 21:30:00,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 21:30:00,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 21:30:00,081 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) [2023-12-21 21:30:00,107 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 [2023-12-21 21:30:00,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 21:30:00,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-21 21:30:00,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 21:30:00,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 21:30:00,192 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 21:30:00,193 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 21:30:00,205 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-21 21:30:00,599 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2023-12-21 21:30:00,599 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2023-12-21 21:30:00,599 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 21:30:00,637 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 21:30:00,638 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 21:30:00,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:30:00 BoogieIcfgContainer [2023-12-21 21:30:00,638 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 21:30:00,639 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 21:30:00,639 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 21:30:00,642 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 21:30:00,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 09:29:59" (1/3) ... [2023-12-21 21:30:00,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac7fa34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:30:00, skipping insertion in model container [2023-12-21 21:30:00,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:59" (2/3) ... [2023-12-21 21:30:00,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac7fa34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:30:00, skipping insertion in model container [2023-12-21 21:30:00,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:30:00" (3/3) ... [2023-12-21 21:30:00,643 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_2a_alt.BV.c.cil.c [2023-12-21 21:30:00,656 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 21:30:00,656 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 21:30:00,697 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 21:30:00,702 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;@76213876, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 21:30:00,702 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 21:30:00,705 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 127 states have (on average 1.795275590551181) internal successors, (228), 128 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:00,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-21 21:30:00,713 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:00,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:00,714 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:00,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:00,718 INFO L85 PathProgramCache]: Analyzing trace with hash -885659394, now seen corresponding path program 1 times [2023-12-21 21:30:00,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:00,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353808879] [2023-12-21 21:30:00,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:00,727 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 [2023-12-21 21:30:00,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:00,745 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) [2023-12-21 21:30:00,773 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 [2023-12-21 21:30:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:00,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 21:30:00,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:00,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:30:00,918 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:00,918 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:00,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353808879] [2023-12-21 21:30:00,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1353808879] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:00,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:00,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 21:30:00,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562065081] [2023-12-21 21:30:00,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:00,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:00,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:00,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:00,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:00,956 INFO L87 Difference]: Start difference. First operand has 129 states, 127 states have (on average 1.795275590551181) internal successors, (228), 128 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:01,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:01,115 INFO L93 Difference]: Finished difference Result 262 states and 463 transitions. [2023-12-21 21:30:01,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:01,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2023-12-21 21:30:01,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:01,125 INFO L225 Difference]: With dead ends: 262 [2023-12-21 21:30:01,125 INFO L226 Difference]: Without dead ends: 124 [2023-12-21 21:30:01,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:01,130 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 16 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:01,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 302 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:30:01,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-12-21 21:30:01,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 121. [2023-12-21 21:30:01,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.5083333333333333) internal successors, (181), 120 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:01,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 181 transitions. [2023-12-21 21:30:01,156 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 181 transitions. Word has length 42 [2023-12-21 21:30:01,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:01,156 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 181 transitions. [2023-12-21 21:30:01,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:01,156 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 181 transitions. [2023-12-21 21:30:01,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-21 21:30:01,158 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:01,158 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:01,171 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 [2023-12-21 21:30:01,360 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 [2023-12-21 21:30:01,360 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:01,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:01,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1758820122, now seen corresponding path program 1 times [2023-12-21 21:30:01,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:01,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1308165269] [2023-12-21 21:30:01,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:01,362 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 [2023-12-21 21:30:01,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:01,363 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) [2023-12-21 21:30:01,368 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 [2023-12-21 21:30:01,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:01,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:01,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:01,464 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:30:01,464 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:01,464 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:01,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1308165269] [2023-12-21 21:30:01,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1308165269] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:01,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:01,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:01,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090235834] [2023-12-21 21:30:01,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:01,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:01,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:01,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:01,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:01,466 INFO L87 Difference]: Start difference. First operand 121 states and 181 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:01,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:01,490 INFO L93 Difference]: Finished difference Result 323 states and 494 transitions. [2023-12-21 21:30:01,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:01,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-12-21 21:30:01,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:01,494 INFO L225 Difference]: With dead ends: 323 [2023-12-21 21:30:01,494 INFO L226 Difference]: Without dead ends: 219 [2023-12-21 21:30:01,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:01,496 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 110 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:01,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 333 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:30:01,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-12-21 21:30:01,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2023-12-21 21:30:01,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.5137614678899083) internal successors, (330), 218 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:01,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 330 transitions. [2023-12-21 21:30:01,505 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 330 transitions. Word has length 57 [2023-12-21 21:30:01,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:01,505 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 330 transitions. [2023-12-21 21:30:01,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:01,505 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 330 transitions. [2023-12-21 21:30:01,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-21 21:30:01,507 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:01,507 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:01,512 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 [2023-12-21 21:30:01,709 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 [2023-12-21 21:30:01,710 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:01,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:01,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1335173400, now seen corresponding path program 1 times [2023-12-21 21:30:01,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:01,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [222762732] [2023-12-21 21:30:01,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:01,711 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 [2023-12-21 21:30:01,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:01,713 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) [2023-12-21 21:30:01,732 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 [2023-12-21 21:30:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:01,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:01,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:01,823 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:30:01,823 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:01,823 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:01,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [222762732] [2023-12-21 21:30:01,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [222762732] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:01,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:01,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 21:30:01,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361516828] [2023-12-21 21:30:01,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:01,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:01,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:01,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:01,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:01,832 INFO L87 Difference]: Start difference. First operand 219 states and 330 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:01,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:01,848 INFO L93 Difference]: Finished difference Result 423 states and 642 transitions. [2023-12-21 21:30:01,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:01,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-12-21 21:30:01,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:01,849 INFO L225 Difference]: With dead ends: 423 [2023-12-21 21:30:01,849 INFO L226 Difference]: Without dead ends: 221 [2023-12-21 21:30:01,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:01,850 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 6 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:01,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 315 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:30:01,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-12-21 21:30:01,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2023-12-21 21:30:01,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 220 states have (on average 1.509090909090909) internal successors, (332), 220 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:01,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 332 transitions. [2023-12-21 21:30:01,864 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 332 transitions. Word has length 57 [2023-12-21 21:30:01,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:01,864 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 332 transitions. [2023-12-21 21:30:01,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:01,864 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 332 transitions. [2023-12-21 21:30:01,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-21 21:30:01,871 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:01,871 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:01,890 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 [2023-12-21 21:30:02,093 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 [2023-12-21 21:30:02,094 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:02,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:02,094 INFO L85 PathProgramCache]: Analyzing trace with hash 808134731, now seen corresponding path program 1 times [2023-12-21 21:30:02,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:02,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321242331] [2023-12-21 21:30:02,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:02,095 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 [2023-12-21 21:30:02,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:02,096 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) [2023-12-21 21:30:02,136 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 [2023-12-21 21:30:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:02,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:02,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:02,198 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 21:30:02,198 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:02,199 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:02,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321242331] [2023-12-21 21:30:02,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1321242331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:02,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:02,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:02,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777690808] [2023-12-21 21:30:02,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:02,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:02,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:02,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:02,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:02,205 INFO L87 Difference]: Start difference. First operand 221 states and 332 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:02,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:02,319 INFO L93 Difference]: Finished difference Result 512 states and 793 transitions. [2023-12-21 21:30:02,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:02,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-12-21 21:30:02,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:02,320 INFO L225 Difference]: With dead ends: 512 [2023-12-21 21:30:02,320 INFO L226 Difference]: Without dead ends: 310 [2023-12-21 21:30:02,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:02,321 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 14 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:02,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 263 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:30:02,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-12-21 21:30:02,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 302. [2023-12-21 21:30:02,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 301 states have (on average 1.4053156146179402) internal successors, (423), 301 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:02,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 423 transitions. [2023-12-21 21:30:02,329 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 423 transitions. Word has length 77 [2023-12-21 21:30:02,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:02,329 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 423 transitions. [2023-12-21 21:30:02,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:02,329 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 423 transitions. [2023-12-21 21:30:02,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-21 21:30:02,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:02,330 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:02,337 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 [2023-12-21 21:30:02,531 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 [2023-12-21 21:30:02,532 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:02,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:02,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1231781453, now seen corresponding path program 1 times [2023-12-21 21:30:02,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:02,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [895538115] [2023-12-21 21:30:02,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:02,533 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 [2023-12-21 21:30:02,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:02,535 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) [2023-12-21 21:30:02,549 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 [2023-12-21 21:30:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:02,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:02,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:02,644 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 21:30:02,644 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:02,644 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:02,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [895538115] [2023-12-21 21:30:02,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [895538115] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:02,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:02,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:02,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123866757] [2023-12-21 21:30:02,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:02,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:02,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:02,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:02,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:02,646 INFO L87 Difference]: Start difference. First operand 302 states and 423 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:02,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:02,737 INFO L93 Difference]: Finished difference Result 613 states and 867 transitions. [2023-12-21 21:30:02,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:02,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-12-21 21:30:02,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:02,738 INFO L225 Difference]: With dead ends: 613 [2023-12-21 21:30:02,738 INFO L226 Difference]: Without dead ends: 330 [2023-12-21 21:30:02,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:02,739 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 12 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:02,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 264 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:30:02,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2023-12-21 21:30:02,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 324. [2023-12-21 21:30:02,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 323 states have (on average 1.3931888544891642) internal successors, (450), 323 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:02,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 450 transitions. [2023-12-21 21:30:02,745 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 450 transitions. Word has length 77 [2023-12-21 21:30:02,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:02,745 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 450 transitions. [2023-12-21 21:30:02,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:02,745 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 450 transitions. [2023-12-21 21:30:02,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-21 21:30:02,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:02,746 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:02,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-21 21:30:02,948 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 [2023-12-21 21:30:02,948 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:02,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:02,949 INFO L85 PathProgramCache]: Analyzing trace with hash -382395928, now seen corresponding path program 1 times [2023-12-21 21:30:02,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:02,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [744546517] [2023-12-21 21:30:02,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:02,949 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 [2023-12-21 21:30:02,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:02,950 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) [2023-12-21 21:30:02,955 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 [2023-12-21 21:30:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:02,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:02,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:03,021 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-21 21:30:03,021 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:03,021 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:03,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [744546517] [2023-12-21 21:30:03,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [744546517] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:03,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:03,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:03,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127103773] [2023-12-21 21:30:03,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:03,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:03,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:03,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:03,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:03,022 INFO L87 Difference]: Start difference. First operand 324 states and 450 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:03,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:03,116 INFO L93 Difference]: Finished difference Result 701 states and 997 transitions. [2023-12-21 21:30:03,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:03,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-21 21:30:03,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:03,117 INFO L225 Difference]: With dead ends: 701 [2023-12-21 21:30:03,117 INFO L226 Difference]: Without dead ends: 396 [2023-12-21 21:30:03,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:03,118 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 28 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:03,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 263 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:30:03,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2023-12-21 21:30:03,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 372. [2023-12-21 21:30:03,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 371 states have (on average 1.3692722371967656) internal successors, (508), 371 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:03,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 508 transitions. [2023-12-21 21:30:03,124 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 508 transitions. Word has length 96 [2023-12-21 21:30:03,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:03,124 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 508 transitions. [2023-12-21 21:30:03,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:03,124 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 508 transitions. [2023-12-21 21:30:03,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 21:30:03,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:03,143 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:03,153 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 [2023-12-21 21:30:03,345 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 [2023-12-21 21:30:03,345 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:03,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:03,346 INFO L85 PathProgramCache]: Analyzing trace with hash -376941569, now seen corresponding path program 1 times [2023-12-21 21:30:03,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:03,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [601984984] [2023-12-21 21:30:03,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:03,346 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 [2023-12-21 21:30:03,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:03,347 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) [2023-12-21 21:30:03,349 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 [2023-12-21 21:30:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:03,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:03,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:03,484 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-21 21:30:03,484 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:03,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:03,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [601984984] [2023-12-21 21:30:03,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [601984984] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:03,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:03,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:03,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47249653] [2023-12-21 21:30:03,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:03,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:03,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:03,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:03,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:03,486 INFO L87 Difference]: Start difference. First operand 372 states and 508 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:03,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:03,507 INFO L93 Difference]: Finished difference Result 888 states and 1222 transitions. [2023-12-21 21:30:03,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:03,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2023-12-21 21:30:03,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:03,509 INFO L225 Difference]: With dead ends: 888 [2023-12-21 21:30:03,509 INFO L226 Difference]: Without dead ends: 535 [2023-12-21 21:30:03,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:03,510 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 110 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:03,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 467 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:30:03,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2023-12-21 21:30:03,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2023-12-21 21:30:03,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 534 states have (on average 1.3707865168539326) internal successors, (732), 534 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:03,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 732 transitions. [2023-12-21 21:30:03,517 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 732 transitions. Word has length 116 [2023-12-21 21:30:03,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:03,517 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 732 transitions. [2023-12-21 21:30:03,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:03,517 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 732 transitions. [2023-12-21 21:30:03,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 21:30:03,518 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:03,518 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:03,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-21 21:30:03,720 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 [2023-12-21 21:30:03,720 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:03,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:03,721 INFO L85 PathProgramCache]: Analyzing trace with hash -128795075, now seen corresponding path program 1 times [2023-12-21 21:30:03,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:03,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1228891725] [2023-12-21 21:30:03,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:03,721 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 [2023-12-21 21:30:03,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:03,722 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) [2023-12-21 21:30:03,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-21 21:30:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:03,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:03,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:03,828 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 21:30:03,828 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:03,829 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:03,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1228891725] [2023-12-21 21:30:03,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1228891725] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:03,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:03,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:03,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44149210] [2023-12-21 21:30:03,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:03,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:03,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:03,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:03,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:03,833 INFO L87 Difference]: Start difference. First operand 535 states and 732 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:03,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:03,856 INFO L93 Difference]: Finished difference Result 1238 states and 1700 transitions. [2023-12-21 21:30:03,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:03,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2023-12-21 21:30:03,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:03,859 INFO L225 Difference]: With dead ends: 1238 [2023-12-21 21:30:03,859 INFO L226 Difference]: Without dead ends: 722 [2023-12-21 21:30:03,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:03,861 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 112 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:03,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 465 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:30:03,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2023-12-21 21:30:03,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 722. [2023-12-21 21:30:03,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 721 states have (on average 1.3675450762829404) internal successors, (986), 721 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:03,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 986 transitions. [2023-12-21 21:30:03,872 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 986 transitions. Word has length 116 [2023-12-21 21:30:03,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:03,872 INFO L495 AbstractCegarLoop]: Abstraction has 722 states and 986 transitions. [2023-12-21 21:30:03,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:03,872 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 986 transitions. [2023-12-21 21:30:03,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-21 21:30:03,873 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:03,874 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:03,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-21 21:30:04,076 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 [2023-12-21 21:30:04,076 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:04,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:04,077 INFO L85 PathProgramCache]: Analyzing trace with hash 864017877, now seen corresponding path program 1 times [2023-12-21 21:30:04,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:04,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881830605] [2023-12-21 21:30:04,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:04,077 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 [2023-12-21 21:30:04,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:04,079 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) [2023-12-21 21:30:04,080 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 [2023-12-21 21:30:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:04,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:04,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:04,196 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-12-21 21:30:04,196 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:04,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:04,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881830605] [2023-12-21 21:30:04,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881830605] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:04,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:04,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:04,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243309907] [2023-12-21 21:30:04,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:04,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:04,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:04,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:04,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:04,198 INFO L87 Difference]: Start difference. First operand 722 states and 986 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:04,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:04,308 INFO L93 Difference]: Finished difference Result 1562 states and 2185 transitions. [2023-12-21 21:30:04,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:04,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2023-12-21 21:30:04,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:04,311 INFO L225 Difference]: With dead ends: 1562 [2023-12-21 21:30:04,311 INFO L226 Difference]: Without dead ends: 859 [2023-12-21 21:30:04,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:04,312 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 34 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:04,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 262 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:30:04,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2023-12-21 21:30:04,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 845. [2023-12-21 21:30:04,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 844 states have (on average 1.3317535545023698) internal successors, (1124), 844 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:04,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1124 transitions. [2023-12-21 21:30:04,323 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1124 transitions. Word has length 176 [2023-12-21 21:30:04,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:04,323 INFO L495 AbstractCegarLoop]: Abstraction has 845 states and 1124 transitions. [2023-12-21 21:30:04,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:04,323 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1124 transitions. [2023-12-21 21:30:04,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-21 21:30:04,325 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:04,325 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:04,328 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 [2023-12-21 21:30:04,528 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 [2023-12-21 21:30:04,528 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:04,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:04,529 INFO L85 PathProgramCache]: Analyzing trace with hash -405478866, now seen corresponding path program 1 times [2023-12-21 21:30:04,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:04,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [309162060] [2023-12-21 21:30:04,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:04,529 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 [2023-12-21 21:30:04,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:04,545 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) [2023-12-21 21:30:04,545 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 [2023-12-21 21:30:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:04,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:04,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:04,660 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-12-21 21:30:04,661 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:04,661 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:04,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [309162060] [2023-12-21 21:30:04,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [309162060] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:04,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:04,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:04,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003594951] [2023-12-21 21:30:04,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:04,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:04,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:04,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:04,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:04,662 INFO L87 Difference]: Start difference. First operand 845 states and 1124 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:04,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:04,734 INFO L93 Difference]: Finished difference Result 1791 states and 2433 transitions. [2023-12-21 21:30:04,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:04,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2023-12-21 21:30:04,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:04,747 INFO L225 Difference]: With dead ends: 1791 [2023-12-21 21:30:04,747 INFO L226 Difference]: Without dead ends: 965 [2023-12-21 21:30:04,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:04,748 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 23 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:04,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 257 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:30:04,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2023-12-21 21:30:04,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 965. [2023-12-21 21:30:04,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 964 states have (on average 1.3112033195020747) internal successors, (1264), 964 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:04,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1264 transitions. [2023-12-21 21:30:04,760 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1264 transitions. Word has length 217 [2023-12-21 21:30:04,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:04,760 INFO L495 AbstractCegarLoop]: Abstraction has 965 states and 1264 transitions. [2023-12-21 21:30:04,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:04,761 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1264 transitions. [2023-12-21 21:30:04,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-12-21 21:30:04,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:04,763 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:04,784 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 [2023-12-21 21:30:04,966 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 [2023-12-21 21:30:04,966 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:04,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:04,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1242759366, now seen corresponding path program 1 times [2023-12-21 21:30:04,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:04,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1731698767] [2023-12-21 21:30:04,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:04,968 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 [2023-12-21 21:30:04,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:04,969 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) [2023-12-21 21:30:05,010 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 [2023-12-21 21:30:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:05,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 21:30:05,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:05,114 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 410 proven. 15 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-12-21 21:30:05,114 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 21:30:05,208 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 410 proven. 15 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-12-21 21:30:05,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:05,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1731698767] [2023-12-21 21:30:05,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1731698767] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 21:30:05,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 21:30:05,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-21 21:30:05,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643742297] [2023-12-21 21:30:05,209 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 21:30:05,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 21:30:05,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:05,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 21:30:05,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 21:30:05,210 INFO L87 Difference]: Start difference. First operand 965 states and 1264 transitions. Second operand has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:05,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:05,729 INFO L93 Difference]: Finished difference Result 3929 states and 5386 transitions. [2023-12-21 21:30:05,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 21:30:05,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 244 [2023-12-21 21:30:05,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:05,736 INFO L225 Difference]: With dead ends: 3929 [2023-12-21 21:30:05,736 INFO L226 Difference]: Without dead ends: 2983 [2023-12-21 21:30:05,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 486 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-21 21:30:05,737 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 485 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:05,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 837 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 21:30:05,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2023-12-21 21:30:05,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 2350. [2023-12-21 21:30:05,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2350 states, 2349 states have (on average 1.3461047254150702) internal successors, (3162), 2349 states have internal predecessors, (3162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:05,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2350 states to 2350 states and 3162 transitions. [2023-12-21 21:30:05,776 INFO L78 Accepts]: Start accepts. Automaton has 2350 states and 3162 transitions. Word has length 244 [2023-12-21 21:30:05,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:05,776 INFO L495 AbstractCegarLoop]: Abstraction has 2350 states and 3162 transitions. [2023-12-21 21:30:05,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:05,776 INFO L276 IsEmpty]: Start isEmpty. Operand 2350 states and 3162 transitions. [2023-12-21 21:30:05,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-12-21 21:30:05,780 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:05,780 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:05,798 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 [2023-12-21 21:30:05,983 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 [2023-12-21 21:30:05,983 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:05,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:05,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1888586939, now seen corresponding path program 1 times [2023-12-21 21:30:05,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:05,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283653524] [2023-12-21 21:30:05,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:05,984 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 [2023-12-21 21:30:05,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:06,001 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) [2023-12-21 21:30:06,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-21 21:30:06,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:06,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:06,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:06,110 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 414 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-21 21:30:06,110 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:06,111 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:06,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283653524] [2023-12-21 21:30:06,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283653524] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:06,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:06,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:06,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868374675] [2023-12-21 21:30:06,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:06,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:06,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:06,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:06,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:06,112 INFO L87 Difference]: Start difference. First operand 2350 states and 3162 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:06,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:06,170 INFO L93 Difference]: Finished difference Result 5644 states and 7595 transitions. [2023-12-21 21:30:06,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:06,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2023-12-21 21:30:06,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:06,178 INFO L225 Difference]: With dead ends: 5644 [2023-12-21 21:30:06,178 INFO L226 Difference]: Without dead ends: 3472 [2023-12-21 21:30:06,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:06,181 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 121 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:06,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 476 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:30:06,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3472 states. [2023-12-21 21:30:06,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3472 to 3286. [2023-12-21 21:30:06,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3286 states, 3285 states have (on average 1.3531202435312024) internal successors, (4445), 3285 states have internal predecessors, (4445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:06,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 4445 transitions. [2023-12-21 21:30:06,234 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 4445 transitions. Word has length 245 [2023-12-21 21:30:06,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:06,234 INFO L495 AbstractCegarLoop]: Abstraction has 3286 states and 4445 transitions. [2023-12-21 21:30:06,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:06,234 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 4445 transitions. [2023-12-21 21:30:06,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-12-21 21:30:06,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:06,238 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:06,256 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 [2023-12-21 21:30:06,440 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 [2023-12-21 21:30:06,441 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:06,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:06,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1459972663, now seen corresponding path program 1 times [2023-12-21 21:30:06,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:06,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314504436] [2023-12-21 21:30:06,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:06,442 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 [2023-12-21 21:30:06,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:06,443 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) [2023-12-21 21:30:06,467 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 [2023-12-21 21:30:06,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:06,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:06,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:06,620 INFO L134 CoverageAnalysis]: Checked inductivity of 628 backedges. 433 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-12-21 21:30:06,620 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:06,620 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:06,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314504436] [2023-12-21 21:30:06,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314504436] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:06,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:06,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:06,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327052188] [2023-12-21 21:30:06,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:06,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:06,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:06,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:06,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:06,621 INFO L87 Difference]: Start difference. First operand 3286 states and 4445 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:06,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:06,671 INFO L93 Difference]: Finished difference Result 5004 states and 6726 transitions. [2023-12-21 21:30:06,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:06,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 250 [2023-12-21 21:30:06,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:06,679 INFO L225 Difference]: With dead ends: 5004 [2023-12-21 21:30:06,679 INFO L226 Difference]: Without dead ends: 3310 [2023-12-21 21:30:06,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:06,682 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 99 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:06,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 476 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:30:06,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3310 states. [2023-12-21 21:30:06,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3310 to 3292. [2023-12-21 21:30:06,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3292 states, 3291 states have (on average 1.3366757824369493) internal successors, (4399), 3291 states have internal predecessors, (4399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:06,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3292 states to 3292 states and 4399 transitions. [2023-12-21 21:30:06,738 INFO L78 Accepts]: Start accepts. Automaton has 3292 states and 4399 transitions. Word has length 250 [2023-12-21 21:30:06,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:06,738 INFO L495 AbstractCegarLoop]: Abstraction has 3292 states and 4399 transitions. [2023-12-21 21:30:06,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:06,739 INFO L276 IsEmpty]: Start isEmpty. Operand 3292 states and 4399 transitions. [2023-12-21 21:30:06,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2023-12-21 21:30:06,743 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:06,743 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:06,762 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 [2023-12-21 21:30:06,965 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 [2023-12-21 21:30:06,965 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:06,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:06,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1570629082, now seen corresponding path program 1 times [2023-12-21 21:30:06,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:06,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840882200] [2023-12-21 21:30:06,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:06,966 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:30:06,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:06,967 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) [2023-12-21 21:30:06,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-21 21:30:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:07,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:07,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:07,084 INFO L134 CoverageAnalysis]: Checked inductivity of 752 backedges. 435 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2023-12-21 21:30:07,084 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:07,084 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:07,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840882200] [2023-12-21 21:30:07,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840882200] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:07,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:07,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:07,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538377874] [2023-12-21 21:30:07,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:07,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:07,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:07,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:07,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:07,086 INFO L87 Difference]: Start difference. First operand 3292 states and 4399 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:07,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:07,209 INFO L93 Difference]: Finished difference Result 5692 states and 7731 transitions. [2023-12-21 21:30:07,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:07,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 281 [2023-12-21 21:30:07,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:07,214 INFO L225 Difference]: With dead ends: 5692 [2023-12-21 21:30:07,214 INFO L226 Difference]: Without dead ends: 1735 [2023-12-21 21:30:07,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:07,218 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 30 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:07,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 264 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:30:07,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2023-12-21 21:30:07,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1437. [2023-12-21 21:30:07,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 1436 states have (on average 1.3224233983286908) internal successors, (1899), 1436 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:07,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 1899 transitions. [2023-12-21 21:30:07,244 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 1899 transitions. Word has length 281 [2023-12-21 21:30:07,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:07,244 INFO L495 AbstractCegarLoop]: Abstraction has 1437 states and 1899 transitions. [2023-12-21 21:30:07,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:07,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 1899 transitions. [2023-12-21 21:30:07,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2023-12-21 21:30:07,248 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:07,248 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 8, 6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:07,266 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 (15)] Ended with exit code 0 [2023-12-21 21:30:07,450 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 [2023-12-21 21:30:07,451 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:07,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:07,451 INFO L85 PathProgramCache]: Analyzing trace with hash 989841933, now seen corresponding path program 1 times [2023-12-21 21:30:07,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:07,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157740625] [2023-12-21 21:30:07,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:07,452 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 [2023-12-21 21:30:07,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:07,453 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) [2023-12-21 21:30:07,459 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 [2023-12-21 21:30:07,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:07,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:07,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:07,561 INFO L134 CoverageAnalysis]: Checked inductivity of 949 backedges. 549 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2023-12-21 21:30:07,561 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:07,561 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:07,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [157740625] [2023-12-21 21:30:07,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [157740625] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:07,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:07,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:07,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719317419] [2023-12-21 21:30:07,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:07,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:07,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:07,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:07,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:07,562 INFO L87 Difference]: Start difference. First operand 1437 states and 1899 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:07,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:07,648 INFO L93 Difference]: Finished difference Result 3049 states and 4095 transitions. [2023-12-21 21:30:07,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:07,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 294 [2023-12-21 21:30:07,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:07,652 INFO L225 Difference]: With dead ends: 3049 [2023-12-21 21:30:07,652 INFO L226 Difference]: Without dead ends: 1631 [2023-12-21 21:30:07,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:07,653 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 17 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:07,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 259 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:30:07,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2023-12-21 21:30:07,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1593. [2023-12-21 21:30:07,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1592 states have (on average 1.309673366834171) internal successors, (2085), 1592 states have internal predecessors, (2085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:07,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2085 transitions. [2023-12-21 21:30:07,675 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2085 transitions. Word has length 294 [2023-12-21 21:30:07,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:07,676 INFO L495 AbstractCegarLoop]: Abstraction has 1593 states and 2085 transitions. [2023-12-21 21:30:07,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:07,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2085 transitions. [2023-12-21 21:30:07,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2023-12-21 21:30:07,679 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:07,680 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 10, 8, 8, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:07,694 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 [2023-12-21 21:30:07,883 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 [2023-12-21 21:30:07,883 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:07,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:07,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1799712819, now seen corresponding path program 1 times [2023-12-21 21:30:07,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:07,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618344187] [2023-12-21 21:30:07,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:07,884 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 [2023-12-21 21:30:07,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:07,885 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) [2023-12-21 21:30:07,912 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 [2023-12-21 21:30:07,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:07,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:07,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:08,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1365 backedges. 795 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2023-12-21 21:30:08,019 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:08,020 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:08,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1618344187] [2023-12-21 21:30:08,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1618344187] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:08,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:08,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:08,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641343012] [2023-12-21 21:30:08,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:08,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:08,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:08,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:08,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:08,021 INFO L87 Difference]: Start difference. First operand 1593 states and 2085 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:08,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:08,123 INFO L93 Difference]: Finished difference Result 3274 states and 4325 transitions. [2023-12-21 21:30:08,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:08,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 338 [2023-12-21 21:30:08,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:08,128 INFO L225 Difference]: With dead ends: 3274 [2023-12-21 21:30:08,128 INFO L226 Difference]: Without dead ends: 1700 [2023-12-21 21:30:08,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:08,130 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 10 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:08,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 259 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:30:08,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2023-12-21 21:30:08,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1469. [2023-12-21 21:30:08,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 1468 states have (on average 1.2881471389645776) internal successors, (1891), 1468 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:08,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 1891 transitions. [2023-12-21 21:30:08,152 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 1891 transitions. Word has length 338 [2023-12-21 21:30:08,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:08,152 INFO L495 AbstractCegarLoop]: Abstraction has 1469 states and 1891 transitions. [2023-12-21 21:30:08,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:08,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 1891 transitions. [2023-12-21 21:30:08,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2023-12-21 21:30:08,155 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:08,155 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 12, 10, 10, 8, 8, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:08,170 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 (17)] Ended with exit code 0 [2023-12-21 21:30:08,357 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 [2023-12-21 21:30:08,358 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:08,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:08,358 INFO L85 PathProgramCache]: Analyzing trace with hash 555843657, now seen corresponding path program 1 times [2023-12-21 21:30:08,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:08,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793064460] [2023-12-21 21:30:08,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:08,359 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 [2023-12-21 21:30:08,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:08,360 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) [2023-12-21 21:30:08,361 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 [2023-12-21 21:30:08,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:08,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:08,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:08,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1910 backedges. 903 proven. 0 refuted. 0 times theorem prover too weak. 1007 trivial. 0 not checked. [2023-12-21 21:30:08,513 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:08,513 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:08,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [793064460] [2023-12-21 21:30:08,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [793064460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:08,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:08,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:08,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585494841] [2023-12-21 21:30:08,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:08,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:08,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:08,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:08,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:08,514 INFO L87 Difference]: Start difference. First operand 1469 states and 1891 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:08,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:08,542 INFO L93 Difference]: Finished difference Result 4229 states and 5409 transitions. [2023-12-21 21:30:08,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:08,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 400 [2023-12-21 21:30:08,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:08,548 INFO L225 Difference]: With dead ends: 4229 [2023-12-21 21:30:08,548 INFO L226 Difference]: Without dead ends: 2845 [2023-12-21 21:30:08,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:08,549 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 120 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:08,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 463 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:30:08,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2845 states. [2023-12-21 21:30:08,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2845 to 2843. [2023-12-21 21:30:08,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2843 states, 2842 states have (on average 1.2790288529204785) internal successors, (3635), 2842 states have internal predecessors, (3635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:08,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2843 states to 2843 states and 3635 transitions. [2023-12-21 21:30:08,586 INFO L78 Accepts]: Start accepts. Automaton has 2843 states and 3635 transitions. Word has length 400 [2023-12-21 21:30:08,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:08,586 INFO L495 AbstractCegarLoop]: Abstraction has 2843 states and 3635 transitions. [2023-12-21 21:30:08,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:08,586 INFO L276 IsEmpty]: Start isEmpty. Operand 2843 states and 3635 transitions. [2023-12-21 21:30:08,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2023-12-21 21:30:08,590 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:08,590 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 12, 10, 10, 8, 8, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:08,595 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 [2023-12-21 21:30:08,793 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 [2023-12-21 21:30:08,793 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:08,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:08,794 INFO L85 PathProgramCache]: Analyzing trace with hash -514298835, now seen corresponding path program 1 times [2023-12-21 21:30:08,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:08,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [726900082] [2023-12-21 21:30:08,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:08,794 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 [2023-12-21 21:30:08,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:08,795 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) [2023-12-21 21:30:08,796 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 [2023-12-21 21:30:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:08,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 21:30:08,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:08,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1911 backedges. 1174 proven. 25 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2023-12-21 21:30:08,949 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 21:30:09,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1911 backedges. 1174 proven. 25 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2023-12-21 21:30:09,002 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:09,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [726900082] [2023-12-21 21:30:09,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [726900082] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 21:30:09,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 21:30:09,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2023-12-21 21:30:09,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941157603] [2023-12-21 21:30:09,002 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 21:30:09,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 21:30:09,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:09,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 21:30:09,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:30:09,003 INFO L87 Difference]: Start difference. First operand 2843 states and 3635 transitions. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:09,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:09,228 INFO L93 Difference]: Finished difference Result 8667 states and 11146 transitions. [2023-12-21 21:30:09,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 21:30:09,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 402 [2023-12-21 21:30:09,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:09,240 INFO L225 Difference]: With dead ends: 8667 [2023-12-21 21:30:09,240 INFO L226 Difference]: Without dead ends: 5909 [2023-12-21 21:30:09,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 801 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:30:09,242 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 144 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:09,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 633 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 21:30:09,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5909 states. [2023-12-21 21:30:09,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5909 to 3859. [2023-12-21 21:30:09,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3859 states, 3858 states have (on average 1.3035251425609125) internal successors, (5029), 3858 states have internal predecessors, (5029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:09,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3859 states to 3859 states and 5029 transitions. [2023-12-21 21:30:09,313 INFO L78 Accepts]: Start accepts. Automaton has 3859 states and 5029 transitions. Word has length 402 [2023-12-21 21:30:09,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:09,313 INFO L495 AbstractCegarLoop]: Abstraction has 3859 states and 5029 transitions. [2023-12-21 21:30:09,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:09,313 INFO L276 IsEmpty]: Start isEmpty. Operand 3859 states and 5029 transitions. [2023-12-21 21:30:09,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2023-12-21 21:30:09,319 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:09,319 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 14, 12, 12, 10, 10, 8, 8, 8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:09,332 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 (19)] Forceful destruction successful, exit code 0 [2023-12-21 21:30:09,522 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 [2023-12-21 21:30:09,522 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:09,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:09,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1660270935, now seen corresponding path program 1 times [2023-12-21 21:30:09,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:09,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663707698] [2023-12-21 21:30:09,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:09,523 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 [2023-12-21 21:30:09,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:09,524 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) [2023-12-21 21:30:09,527 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 [2023-12-21 21:30:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:09,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:09,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:09,633 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 1405 proven. 0 refuted. 0 times theorem prover too weak. 1151 trivial. 0 not checked. [2023-12-21 21:30:09,633 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:09,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:09,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663707698] [2023-12-21 21:30:09,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663707698] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:09,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:09,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:09,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451622832] [2023-12-21 21:30:09,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:09,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:09,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:09,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:09,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:09,635 INFO L87 Difference]: Start difference. First operand 3859 states and 5029 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:09,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:09,740 INFO L93 Difference]: Finished difference Result 8073 states and 10583 transitions. [2023-12-21 21:30:09,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:09,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 460 [2023-12-21 21:30:09,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:09,747 INFO L225 Difference]: With dead ends: 8073 [2023-12-21 21:30:09,747 INFO L226 Difference]: Without dead ends: 4233 [2023-12-21 21:30:09,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:09,751 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 12 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:09,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 263 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:30:09,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4233 states. [2023-12-21 21:30:09,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4233 to 4182. [2023-12-21 21:30:09,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4182 states, 4181 states have (on average 1.300406601291557) internal successors, (5437), 4181 states have internal predecessors, (5437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:09,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4182 states to 4182 states and 5437 transitions. [2023-12-21 21:30:09,832 INFO L78 Accepts]: Start accepts. Automaton has 4182 states and 5437 transitions. Word has length 460 [2023-12-21 21:30:09,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:09,832 INFO L495 AbstractCegarLoop]: Abstraction has 4182 states and 5437 transitions. [2023-12-21 21:30:09,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:09,833 INFO L276 IsEmpty]: Start isEmpty. Operand 4182 states and 5437 transitions. [2023-12-21 21:30:09,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2023-12-21 21:30:09,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:09,839 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 14, 12, 12, 10, 10, 8, 8, 8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:09,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-21 21:30:10,042 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 [2023-12-21 21:30:10,043 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:10,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:10,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1437711757, now seen corresponding path program 1 times [2023-12-21 21:30:10,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:10,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1761106162] [2023-12-21 21:30:10,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:10,044 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 [2023-12-21 21:30:10,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:10,045 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) [2023-12-21 21:30:10,092 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 [2023-12-21 21:30:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:10,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:10,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:10,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2557 backedges. 1485 proven. 0 refuted. 0 times theorem prover too weak. 1072 trivial. 0 not checked. [2023-12-21 21:30:10,212 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:10,212 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:10,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1761106162] [2023-12-21 21:30:10,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1761106162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:10,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:10,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:10,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441347532] [2023-12-21 21:30:10,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:10,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:10,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:10,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:10,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:10,214 INFO L87 Difference]: Start difference. First operand 4182 states and 5437 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:10,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:10,342 INFO L93 Difference]: Finished difference Result 8940 states and 11837 transitions. [2023-12-21 21:30:10,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:10,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 462 [2023-12-21 21:30:10,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:10,348 INFO L225 Difference]: With dead ends: 8940 [2023-12-21 21:30:10,348 INFO L226 Difference]: Without dead ends: 4777 [2023-12-21 21:30:10,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:10,352 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 10 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:10,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 259 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:30:10,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4777 states. [2023-12-21 21:30:10,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4777 to 4743. [2023-12-21 21:30:10,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4743 states, 4742 states have (on average 1.2827920708561789) internal successors, (6083), 4742 states have internal predecessors, (6083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:10,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4743 states to 4743 states and 6083 transitions. [2023-12-21 21:30:10,415 INFO L78 Accepts]: Start accepts. Automaton has 4743 states and 6083 transitions. Word has length 462 [2023-12-21 21:30:10,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:10,415 INFO L495 AbstractCegarLoop]: Abstraction has 4743 states and 6083 transitions. [2023-12-21 21:30:10,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:10,416 INFO L276 IsEmpty]: Start isEmpty. Operand 4743 states and 6083 transitions. [2023-12-21 21:30:10,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2023-12-21 21:30:10,422 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:10,422 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 16, 15, 14, 12, 12, 10, 10, 8, 8, 8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:10,425 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 [2023-12-21 21:30:10,625 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 [2023-12-21 21:30:10,626 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:10,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:10,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1036572115, now seen corresponding path program 1 times [2023-12-21 21:30:10,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:10,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615003588] [2023-12-21 21:30:10,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:10,627 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 [2023-12-21 21:30:10,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:10,641 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) [2023-12-21 21:30:10,656 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 [2023-12-21 21:30:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:10,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:30:10,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:11,583 INFO L134 CoverageAnalysis]: Checked inductivity of 3047 backedges. 1651 proven. 193 refuted. 0 times theorem prover too weak. 1203 trivial. 0 not checked. [2023-12-21 21:30:11,583 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 21:30:12,290 INFO L134 CoverageAnalysis]: Checked inductivity of 3047 backedges. 1740 proven. 104 refuted. 0 times theorem prover too weak. 1203 trivial. 0 not checked. [2023-12-21 21:30:12,290 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:12,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1615003588] [2023-12-21 21:30:12,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1615003588] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 21:30:12,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 21:30:12,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-21 21:30:12,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888091553] [2023-12-21 21:30:12,291 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 21:30:12,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 21:30:12,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:12,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 21:30:12,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 21:30:12,293 INFO L87 Difference]: Start difference. First operand 4743 states and 6083 transitions. Second operand has 7 states, 7 states have (on average 31.714285714285715) internal successors, (222), 7 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:13,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:13,473 INFO L93 Difference]: Finished difference Result 14027 states and 18249 transitions. [2023-12-21 21:30:13,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 21:30:13,473 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.714285714285715) internal successors, (222), 7 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 494 [2023-12-21 21:30:13,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:13,492 INFO L225 Difference]: With dead ends: 14027 [2023-12-21 21:30:13,492 INFO L226 Difference]: Without dead ends: 9295 [2023-12-21 21:30:13,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 989 GetRequests, 982 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 21:30:13,499 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 351 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:13,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 691 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 21:30:13,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9295 states. [2023-12-21 21:30:13,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9295 to 8288. [2023-12-21 21:30:13,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8288 states, 8287 states have (on average 1.278749849161337) internal successors, (10597), 8287 states have internal predecessors, (10597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:13,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8288 states to 8288 states and 10597 transitions. [2023-12-21 21:30:13,671 INFO L78 Accepts]: Start accepts. Automaton has 8288 states and 10597 transitions. Word has length 494 [2023-12-21 21:30:13,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:13,671 INFO L495 AbstractCegarLoop]: Abstraction has 8288 states and 10597 transitions. [2023-12-21 21:30:13,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.714285714285715) internal successors, (222), 7 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:13,672 INFO L276 IsEmpty]: Start isEmpty. Operand 8288 states and 10597 transitions. [2023-12-21 21:30:13,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2023-12-21 21:30:13,684 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:13,684 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 17, 16, 15, 13, 13, 11, 11, 9, 9, 9, 9, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:13,690 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 [2023-12-21 21:30:13,887 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 [2023-12-21 21:30:13,888 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:13,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:13,888 INFO L85 PathProgramCache]: Analyzing trace with hash 749348849, now seen corresponding path program 2 times [2023-12-21 21:30:13,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:13,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287278935] [2023-12-21 21:30:13,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 21:30:13,890 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:30:13,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:13,890 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) [2023-12-21 21:30:13,892 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 [2023-12-21 21:30:13,985 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 21:30:13,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 21:30:13,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:30:13,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:15,071 INFO L134 CoverageAnalysis]: Checked inductivity of 3436 backedges. 1908 proven. 297 refuted. 0 times theorem prover too weak. 1231 trivial. 0 not checked. [2023-12-21 21:30:15,071 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 21:30:16,050 INFO L134 CoverageAnalysis]: Checked inductivity of 3436 backedges. 2044 proven. 161 refuted. 0 times theorem prover too weak. 1231 trivial. 0 not checked. [2023-12-21 21:30:16,050 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:16,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287278935] [2023-12-21 21:30:16,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287278935] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 21:30:16,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 21:30:16,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-21 21:30:16,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885872931] [2023-12-21 21:30:16,051 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 21:30:16,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 21:30:16,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:16,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 21:30:16,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 21:30:16,053 INFO L87 Difference]: Start difference. First operand 8288 states and 10597 transitions. Second operand has 7 states, 7 states have (on average 37.57142857142857) internal successors, (263), 7 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:17,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:17,379 INFO L93 Difference]: Finished difference Result 25603 states and 32860 transitions. [2023-12-21 21:30:17,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 21:30:17,381 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 37.57142857142857) internal successors, (263), 7 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 521 [2023-12-21 21:30:17,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:17,404 INFO L225 Difference]: With dead ends: 25603 [2023-12-21 21:30:17,404 INFO L226 Difference]: Without dead ends: 17040 [2023-12-21 21:30:17,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1044 GetRequests, 1036 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 21:30:17,412 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 374 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:17,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 689 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 21:30:17,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17040 states. [2023-12-21 21:30:17,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17040 to 16071. [2023-12-21 21:30:17,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16071 states, 16070 states have (on average 1.2783447417548226) internal successors, (20543), 16070 states have internal predecessors, (20543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:17,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16071 states to 16071 states and 20543 transitions. [2023-12-21 21:30:17,730 INFO L78 Accepts]: Start accepts. Automaton has 16071 states and 20543 transitions. Word has length 521 [2023-12-21 21:30:17,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:17,730 INFO L495 AbstractCegarLoop]: Abstraction has 16071 states and 20543 transitions. [2023-12-21 21:30:17,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 37.57142857142857) internal successors, (263), 7 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:17,731 INFO L276 IsEmpty]: Start isEmpty. Operand 16071 states and 20543 transitions. [2023-12-21 21:30:17,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2023-12-21 21:30:17,751 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:17,751 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 17, 16, 14, 14, 12, 12, 10, 10, 10, 10, 7, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:17,768 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 (23)] Ended with exit code 0 [2023-12-21 21:30:17,954 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 [2023-12-21 21:30:17,954 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:17,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:17,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1070035859, now seen corresponding path program 1 times [2023-12-21 21:30:17,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:17,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516690998] [2023-12-21 21:30:17,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:17,955 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 [2023-12-21 21:30:17,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:17,964 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) [2023-12-21 21:30:17,965 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 [2023-12-21 21:30:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:18,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:18,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:18,103 INFO L134 CoverageAnalysis]: Checked inductivity of 3319 backedges. 1913 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2023-12-21 21:30:18,103 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:18,103 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:18,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516690998] [2023-12-21 21:30:18,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1516690998] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:18,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:18,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:18,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23038406] [2023-12-21 21:30:18,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:18,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:18,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:18,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:18,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:18,104 INFO L87 Difference]: Start difference. First operand 16071 states and 20543 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:18,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:18,390 INFO L93 Difference]: Finished difference Result 29263 states and 37624 transitions. [2023-12-21 21:30:18,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:18,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 522 [2023-12-21 21:30:18,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:18,407 INFO L225 Difference]: With dead ends: 29263 [2023-12-21 21:30:18,407 INFO L226 Difference]: Without dead ends: 13211 [2023-12-21 21:30:18,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:18,418 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 10 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:18,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 259 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:30:18,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13211 states. [2023-12-21 21:30:18,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13211 to 11599. [2023-12-21 21:30:18,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11599 states, 11598 states have (on average 1.241507156406277) internal successors, (14399), 11598 states have internal predecessors, (14399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:18,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11599 states to 11599 states and 14399 transitions. [2023-12-21 21:30:18,643 INFO L78 Accepts]: Start accepts. Automaton has 11599 states and 14399 transitions. Word has length 522 [2023-12-21 21:30:18,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:18,643 INFO L495 AbstractCegarLoop]: Abstraction has 11599 states and 14399 transitions. [2023-12-21 21:30:18,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:18,643 INFO L276 IsEmpty]: Start isEmpty. Operand 11599 states and 14399 transitions. [2023-12-21 21:30:18,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2023-12-21 21:30:18,658 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:18,658 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 19, 19, 17, 17, 15, 13, 13, 11, 11, 9, 9, 9, 9, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:18,676 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 [2023-12-21 21:30:18,862 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 [2023-12-21 21:30:18,862 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:18,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:18,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1586945953, now seen corresponding path program 1 times [2023-12-21 21:30:18,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:18,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1933102485] [2023-12-21 21:30:18,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:18,863 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 [2023-12-21 21:30:18,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:18,864 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) [2023-12-21 21:30:18,880 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 [2023-12-21 21:30:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:18,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 21:30:18,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:19,029 INFO L134 CoverageAnalysis]: Checked inductivity of 3630 backedges. 923 proven. 11 refuted. 0 times theorem prover too weak. 2696 trivial. 0 not checked. [2023-12-21 21:30:19,029 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 21:30:19,078 INFO L134 CoverageAnalysis]: Checked inductivity of 3630 backedges. 923 proven. 11 refuted. 0 times theorem prover too weak. 2696 trivial. 0 not checked. [2023-12-21 21:30:19,079 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:19,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1933102485] [2023-12-21 21:30:19,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1933102485] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 21:30:19,079 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 21:30:19,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2023-12-21 21:30:19,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319008911] [2023-12-21 21:30:19,079 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 21:30:19,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 21:30:19,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:19,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 21:30:19,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:30:19,080 INFO L87 Difference]: Start difference. First operand 11599 states and 14399 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:19,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:19,410 INFO L93 Difference]: Finished difference Result 24013 states and 29813 transitions. [2023-12-21 21:30:19,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 21:30:19,410 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 533 [2023-12-21 21:30:19,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:19,424 INFO L225 Difference]: With dead ends: 24013 [2023-12-21 21:30:19,424 INFO L226 Difference]: Without dead ends: 11559 [2023-12-21 21:30:19,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1066 GetRequests, 1063 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:30:19,433 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 22 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:19,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 469 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:30:19,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11559 states. [2023-12-21 21:30:19,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11559 to 11559. [2023-12-21 21:30:19,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11559 states, 11558 states have (on average 1.2372382765184289) internal successors, (14300), 11558 states have internal predecessors, (14300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:19,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11559 states to 11559 states and 14300 transitions. [2023-12-21 21:30:19,655 INFO L78 Accepts]: Start accepts. Automaton has 11559 states and 14300 transitions. Word has length 533 [2023-12-21 21:30:19,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:19,655 INFO L495 AbstractCegarLoop]: Abstraction has 11559 states and 14300 transitions. [2023-12-21 21:30:19,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:19,655 INFO L276 IsEmpty]: Start isEmpty. Operand 11559 states and 14300 transitions. [2023-12-21 21:30:19,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2023-12-21 21:30:19,665 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:19,665 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 18, 18, 16, 14, 14, 12, 12, 10, 10, 10, 10, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:19,683 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 [2023-12-21 21:30:19,869 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 [2023-12-21 21:30:19,869 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:19,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:19,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1701510475, now seen corresponding path program 1 times [2023-12-21 21:30:19,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:19,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340695469] [2023-12-21 21:30:19,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:19,870 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 [2023-12-21 21:30:19,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:19,878 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) [2023-12-21 21:30:19,879 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 [2023-12-21 21:30:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:19,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 21:30:19,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:20,029 INFO L134 CoverageAnalysis]: Checked inductivity of 3901 backedges. 1267 proven. 16 refuted. 0 times theorem prover too weak. 2618 trivial. 0 not checked. [2023-12-21 21:30:20,029 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 21:30:20,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3901 backedges. 1267 proven. 16 refuted. 0 times theorem prover too weak. 2618 trivial. 0 not checked. [2023-12-21 21:30:20,140 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:20,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [340695469] [2023-12-21 21:30:20,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [340695469] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 21:30:20,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 21:30:20,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-21 21:30:20,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240513370] [2023-12-21 21:30:20,140 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 21:30:20,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 21:30:20,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:20,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 21:30:20,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 21:30:20,141 INFO L87 Difference]: Start difference. First operand 11559 states and 14300 transitions. Second operand has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 6 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:20,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:20,560 INFO L93 Difference]: Finished difference Result 16371 states and 20187 transitions. [2023-12-21 21:30:20,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 21:30:20,560 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 6 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 563 [2023-12-21 21:30:20,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:20,561 INFO L225 Difference]: With dead ends: 16371 [2023-12-21 21:30:20,561 INFO L226 Difference]: Without dead ends: 0 [2023-12-21 21:30:20,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1130 GetRequests, 1123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-12-21 21:30:20,566 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 284 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:20,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 637 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 21:30:20,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-21 21:30:20,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-21 21:30:20,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:20,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-21 21:30:20,571 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 563 [2023-12-21 21:30:20,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:20,571 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-21 21:30:20,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 6 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:20,571 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-21 21:30:20,571 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-21 21:30:20,573 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 21:30:20,576 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 (26)] Ended with exit code 0 [2023-12-21 21:30:20,779 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 [2023-12-21 21:30:20,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 21:30:27,177 INFO L899 garLoopResultBuilder]: For program point L366(lines 366 397) no Hoare annotation was computed. [2023-12-21 21:30:27,177 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 337) no Hoare annotation was computed. [2023-12-21 21:30:27,177 INFO L899 garLoopResultBuilder]: For program point L267(lines 267 272) no Hoare annotation was computed. [2023-12-21 21:30:27,177 INFO L899 garLoopResultBuilder]: For program point L333-2(lines 333 337) no Hoare annotation was computed. [2023-12-21 21:30:27,177 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 607) no Hoare annotation was computed. [2023-12-21 21:30:27,177 INFO L899 garLoopResultBuilder]: For program point L168(lines 168 618) no Hoare annotation was computed. [2023-12-21 21:30:27,178 INFO L899 garLoopResultBuilder]: For program point L135(lines 135 629) no Hoare annotation was computed. [2023-12-21 21:30:27,178 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8593#1(lines 186 612) no Hoare annotation was computed. [2023-12-21 21:30:27,178 INFO L899 garLoopResultBuilder]: For program point L532(lines 532 537) no Hoare annotation was computed. [2023-12-21 21:30:27,178 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8529#1(lines 159 621) no Hoare annotation was computed. [2023-12-21 21:30:27,178 INFO L899 garLoopResultBuilder]: For program point L566(lines 566 570) no Hoare annotation was computed. [2023-12-21 21:30:27,179 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8497#1(lines 147 625) no Hoare annotation was computed. [2023-12-21 21:30:27,179 INFO L899 garLoopResultBuilder]: For program point L302(lines 302 306) no Hoare annotation was computed. [2023-12-21 21:30:27,179 INFO L899 garLoopResultBuilder]: For program point L302-2(lines 221 598) no Hoare annotation was computed. [2023-12-21 21:30:27,179 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 396) no Hoare annotation was computed. [2023-12-21 21:30:27,179 INFO L899 garLoopResultBuilder]: For program point L369-1(lines 369 396) no Hoare annotation was computed. [2023-12-21 21:30:27,179 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 606) no Hoare annotation was computed. [2023-12-21 21:30:27,180 INFO L899 garLoopResultBuilder]: For program point L171(lines 171 617) no Hoare annotation was computed. [2023-12-21 21:30:27,180 INFO L899 garLoopResultBuilder]: For program point L138(lines 138 628) no Hoare annotation was computed. [2023-12-21 21:30:27,180 INFO L899 garLoopResultBuilder]: For program point L370(lines 370 393) no Hoare annotation was computed. [2023-12-21 21:30:27,180 INFO L899 garLoopResultBuilder]: For program point L668(lines 76 685) no Hoare annotation was computed. [2023-12-21 21:30:27,180 INFO L899 garLoopResultBuilder]: For program point L405(lines 405 436) no Hoare annotation was computed. [2023-12-21 21:30:27,180 INFO L899 garLoopResultBuilder]: For program point L207(lines 207 605) no Hoare annotation was computed. [2023-12-21 21:30:27,180 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 616) no Hoare annotation was computed. [2023-12-21 21:30:27,180 INFO L899 garLoopResultBuilder]: For program point L141(lines 141 627) no Hoare annotation was computed. [2023-12-21 21:30:27,180 INFO L899 garLoopResultBuilder]: For program point L637(lines 637 665) no Hoare annotation was computed. [2023-12-21 21:30:27,180 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 412) no Hoare annotation was computed. [2023-12-21 21:30:27,181 INFO L899 garLoopResultBuilder]: For program point L373(lines 373 392) no Hoare annotation was computed. [2023-12-21 21:30:27,181 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 258) no Hoare annotation was computed. [2023-12-21 21:30:27,181 INFO L899 garLoopResultBuilder]: For program point L241-2(lines 221 598) no Hoare annotation was computed. [2023-12-21 21:30:27,181 INFO L899 garLoopResultBuilder]: For program point L638(lines 638 662) no Hoare annotation was computed. [2023-12-21 21:30:27,181 INFO L899 garLoopResultBuilder]: For program point L572(lines 572 576) no Hoare annotation was computed. [2023-12-21 21:30:27,181 INFO L899 garLoopResultBuilder]: For program point L539(lines 539 543) no Hoare annotation was computed. [2023-12-21 21:30:27,181 INFO L899 garLoopResultBuilder]: For program point L506(lines 506 510) no Hoare annotation was computed. [2023-12-21 21:30:27,181 INFO L899 garLoopResultBuilder]: For program point L572-2(lines 572 576) no Hoare annotation was computed. [2023-12-21 21:30:27,181 INFO L899 garLoopResultBuilder]: For program point L539-2(lines 221 598) no Hoare annotation was computed. [2023-12-21 21:30:27,181 INFO L899 garLoopResultBuilder]: For program point L374(lines 374 378) no Hoare annotation was computed. [2023-12-21 21:30:27,181 INFO L899 garLoopResultBuilder]: For program point L374-2(lines 373 390) no Hoare annotation was computed. [2023-12-21 21:30:27,181 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 676) no Hoare annotation was computed. [2023-12-21 21:30:27,181 INFO L899 garLoopResultBuilder]: For program point L639(lines 639 648) no Hoare annotation was computed. [2023-12-21 21:30:27,181 INFO L899 garLoopResultBuilder]: For program point L672-2(lines 672 676) no Hoare annotation was computed. [2023-12-21 21:30:27,181 INFO L899 garLoopResultBuilder]: For program point L639-2(lines 638 660) no Hoare annotation was computed. [2023-12-21 21:30:27,181 INFO L899 garLoopResultBuilder]: For program point L474(lines 474 478) no Hoare annotation was computed. [2023-12-21 21:30:27,181 INFO L899 garLoopResultBuilder]: For program point L342-1(lines 342 351) no Hoare annotation was computed. [2023-12-21 21:30:27,181 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 248) no Hoare annotation was computed. [2023-12-21 21:30:27,181 INFO L899 garLoopResultBuilder]: For program point L210(lines 210 604) no Hoare annotation was computed. [2023-12-21 21:30:27,182 INFO L899 garLoopResultBuilder]: For program point L177(lines 177 615) no Hoare annotation was computed. [2023-12-21 21:30:27,182 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 626) no Hoare annotation was computed. [2023-12-21 21:30:27,182 INFO L895 garLoopResultBuilder]: At program point L111-2(lines 111 667) the Hoare annotation is: (let ((.cse26 (bvadd (bvmul (_ bv2 32) |ULTIMATE.start_ssl3_accept_~ag_X~0#1|) (bvmul (_ bv2 32) |ULTIMATE.start_ssl3_accept_~ag_Y~0#1|))) (.cse1 (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| (_ bv0 32)))) (let ((.cse10 (= (_ bv8512 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse19 (= (_ bv8592 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse23 (= (_ bv8544 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse12 (= (_ bv8560 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse2 (= (_ bv8640 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse17 (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv8482 32))) (.cse9 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv1 32))) (.cse27 (= (_ bv8482 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse24 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| (_ bv8466 32))) (.cse18 (not (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv8496 32)))) (.cse25 (= (_ bv8608 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse20 (= (_ bv8528 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse5 (not .cse1)) (.cse13 (= (_ bv8656 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse11 (= .cse26 (_ bv8496 32))) (.cse22 (= (_ bv8576 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse15 (= (_ bv8672 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse4 (not (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv8497 32)))) (.cse7 (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv8640 32))) (.cse14 (= (_ bv3 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv2 32))) (.cse16 (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv8576 32))) (.cse6 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv3 32))) (.cse21 (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv3 32))) (.cse8 (= (_ bv8448 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse3 (= (_ bv8448 32) .cse26))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse7 .cse8) (and .cse9 .cse2) (and .cse0 .cse10 .cse1 .cse3) (and .cse0 .cse11 .cse1 .cse12) (and .cse9 .cse1 .cse13) (and .cse0 .cse11 .cse10 .cse1) (and .cse0 .cse13 .cse3 .cse4) (and .cse0 .cse1 .cse14) (and .cse9 .cse15) (and .cse0 .cse11 .cse16 .cse1 .cse8) (and .cse17 .cse1 .cse8) (and .cse5 .cse9 .cse7 .cse8) (and .cse0 .cse18 .cse19 .cse1 .cse3 .cse4) (and .cse9 .cse19) (and .cse9 .cse20) (and .cse9 .cse21 .cse8) (and .cse0 .cse16 .cse1 .cse22 .cse3) (and .cse0 .cse1 .cse23 .cse3) (and .cse9 .cse24) (and .cse9 .cse12) (and .cse0 .cse11 .cse13 .cse4) (and .cse0 .cse11 .cse1 .cse20) (and .cse0 .cse11 .cse19 .cse16 .cse1) (and .cse17 .cse9 .cse8) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| (_ bv8464 32)) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv0 32))) (and .cse18 .cse1 .cse14) (and .cse9 .cse25) (and .cse0 .cse11 .cse1 .cse23) (and .cse9 .cse23) (and .cse0 .cse11 .cse18 (= (_ bv8496 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|) .cse1 .cse4) (and .cse0 .cse11 .cse1 .cse2 .cse4) (and .cse0 .cse1 .cse12 .cse3) (and .cse9 .cse14) (and .cse5 .cse6 .cse7 .cse2) (and .cse9 .cse3) (and .cse11 .cse6 .cse21 .cse1 .cse8) (and .cse9 .cse16 .cse8) (and .cse11 .cse6 .cse1 .cse15 .cse4) (and .cse9 (= .cse26 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and .cse0 .cse16 .cse1 .cse24 .cse3) (and .cse9 .cse16 .cse22) (and .cse17 .cse27 .cse1) (and .cse17 .cse9 .cse27) (and .cse0 .cse11 .cse25 .cse16 .cse1) (and .cse0 .cse11 .cse18 .cse1 .cse24 .cse4) (and .cse0 .cse18 .cse25 .cse1 .cse3 .cse4) (and .cse5 .cse6 .cse15) (and .cse0 .cse1 .cse20 .cse3) (and .cse5 .cse0 .cse13) (and .cse0 .cse11 .cse16 .cse1 .cse22) (and .cse6 .cse1 .cse15 .cse3 .cse4) (and .cse6 .cse7 .cse14) (and .cse0 .cse16 .cse1 .cse8 .cse3) (and .cse6 .cse21 .cse1 .cse8 .cse3)))) [2023-12-21 21:30:27,182 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8481#1(lines 129 631) no Hoare annotation was computed. [2023-12-21 21:30:27,182 INFO L899 garLoopResultBuilder]: For program point L641(lines 641 645) no Hoare annotation was computed. [2023-12-21 21:30:27,182 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 603) no Hoare annotation was computed. [2023-12-21 21:30:27,182 INFO L899 garLoopResultBuilder]: For program point L180(lines 180 614) no Hoare annotation was computed. [2023-12-21 21:30:27,182 INFO L899 garLoopResultBuilder]: For program point L147(lines 147 625) no Hoare annotation was computed. [2023-12-21 21:30:27,182 INFO L899 garLoopResultBuilder]: For program point L114(lines 114 636) no Hoare annotation was computed. [2023-12-21 21:30:27,182 INFO L899 garLoopResultBuilder]: For program point L346(lines 346 350) no Hoare annotation was computed. [2023-12-21 21:30:27,182 INFO L899 garLoopResultBuilder]: For program point L479(lines 479 490) no Hoare annotation was computed. [2023-12-21 21:30:27,182 INFO L899 garLoopResultBuilder]: For program point L446(lines 446 450) no Hoare annotation was computed. [2023-12-21 21:30:27,182 INFO L899 garLoopResultBuilder]: For program point L380(lines 363 398) no Hoare annotation was computed. [2023-12-21 21:30:27,183 INFO L899 garLoopResultBuilder]: For program point L249(lines 249 254) no Hoare annotation was computed. [2023-12-21 21:30:27,183 INFO L899 garLoopResultBuilder]: For program point L216(lines 216 602) no Hoare annotation was computed. [2023-12-21 21:30:27,183 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 613) no Hoare annotation was computed. [2023-12-21 21:30:27,183 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8657#1(lines 204 606) no Hoare annotation was computed. [2023-12-21 21:30:27,183 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 624) no Hoare annotation was computed. [2023-12-21 21:30:27,183 INFO L899 garLoopResultBuilder]: For program point L117(lines 117 635) no Hoare annotation was computed. [2023-12-21 21:30:27,183 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 386) no Hoare annotation was computed. [2023-12-21 21:30:27,183 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 93) no Hoare annotation was computed. [2023-12-21 21:30:27,183 INFO L899 garLoopResultBuilder]: For program point L416(lines 416 422) no Hoare annotation was computed. [2023-12-21 21:30:27,183 INFO L899 garLoopResultBuilder]: For program point L582(lines 582 592) no Hoare annotation was computed. [2023-12-21 21:30:27,183 INFO L899 garLoopResultBuilder]: For program point L582-1(lines 582 592) no Hoare annotation was computed. [2023-12-21 21:30:27,183 INFO L899 garLoopResultBuilder]: For program point L483(lines 483 487) no Hoare annotation was computed. [2023-12-21 21:30:27,183 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 289) no Hoare annotation was computed. [2023-12-21 21:30:27,183 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 612) no Hoare annotation was computed. [2023-12-21 21:30:27,183 INFO L899 garLoopResultBuilder]: For program point L153(lines 153 623) no Hoare annotation was computed. [2023-12-21 21:30:27,183 INFO L899 garLoopResultBuilder]: For program point L120(lines 120 634) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point L517(lines 517 521) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point L319(lines 319 327) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point L88(lines 88 92) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point L88-2(lines 85 93) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point L683(lines 76 685) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point L650(lines 650 656) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point L551(lines 551 556) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point L585(lines 585 589) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point $Ultimate##176(lines 456 468) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8577#1(lines 180 614) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 611) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point L156(lines 156 622) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 633) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 326) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point L322-2(lines 221 598) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8641#1(lines 198 608) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point L224(lines 117 635) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_ERROR#1(lines 76 685) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 526) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point L522-2(lines 522 526) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point L456-1(lines 456 468) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point L192(lines 192 610) no Hoare annotation was computed. [2023-12-21 21:30:27,184 INFO L899 garLoopResultBuilder]: For program point L159(lines 159 621) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point L126(lines 126 632) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point L424(lines 415 435) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point $Ultimate##130(lines 342 351) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point L358(lines 358 362) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point L358-2(lines 221 598) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8673#1(lines 210 604) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 103) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point L95-1(lines 76 685) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8609#1(lines 192 610) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point L459(lines 459 464) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point $Ultimate##158(lines 404 441) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 609) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point L162(lines 162 620) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 631) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 100) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8466#1(lines 138 628) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point L427(lines 427 431) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point $Ultimate##166(lines 415 435) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point L229(lines 229 233) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point L229-2(lines 221 598) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point $Ultimate##219(lines 637 665) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 679) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point L561(lines 561 565) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point L495(lines 495 499) no Hoare annotation was computed. [2023-12-21 21:30:27,185 INFO L899 garLoopResultBuilder]: For program point L198(lines 198 608) no Hoare annotation was computed. [2023-12-21 21:30:27,186 INFO L899 garLoopResultBuilder]: For program point L165(lines 165 619) no Hoare annotation was computed. [2023-12-21 21:30:27,186 INFO L899 garLoopResultBuilder]: For program point L132(lines 132 630) no Hoare annotation was computed. [2023-12-21 21:30:27,186 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8561#1(lines 171 617) no Hoare annotation was computed. [2023-12-21 21:30:27,186 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 279) no Hoare annotation was computed. [2023-12-21 21:30:27,188 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:27,189 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 21:30:27,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 09:30:27 BoogieIcfgContainer [2023-12-21 21:30:27,216 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 21:30:27,216 INFO L158 Benchmark]: Toolchain (without parser) took 27488.52ms. Allocated memory was 223.3MB in the beginning and 998.2MB in the end (delta: 774.9MB). Free memory was 179.2MB in the beginning and 730.1MB in the end (delta: -550.9MB). Peak memory consumption was 669.1MB. Max. memory is 8.0GB. [2023-12-21 21:30:27,216 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 223.3MB. Free memory is still 181.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 21:30:27,216 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.69ms. Allocated memory is still 223.3MB. Free memory was 178.8MB in the beginning and 162.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-21 21:30:27,217 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.17ms. Allocated memory is still 223.3MB. Free memory was 162.0MB in the beginning and 159.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 21:30:27,217 INFO L158 Benchmark]: Boogie Preprocessor took 33.51ms. Allocated memory is still 223.3MB. Free memory was 159.5MB in the beginning and 156.1MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-21 21:30:27,217 INFO L158 Benchmark]: RCFGBuilder took 589.63ms. Allocated memory is still 223.3MB. Free memory was 156.1MB in the beginning and 119.7MB in the end (delta: 36.4MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2023-12-21 21:30:27,217 INFO L158 Benchmark]: TraceAbstraction took 26576.56ms. Allocated memory was 223.3MB in the beginning and 998.2MB in the end (delta: 774.9MB). Free memory was 119.0MB in the beginning and 730.1MB in the end (delta: -611.1MB). Peak memory consumption was 608.3MB. Max. memory is 8.0GB. [2023-12-21 21:30:27,218 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 223.3MB. Free memory is still 181.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 252.69ms. Allocated memory is still 223.3MB. Free memory was 178.8MB in the beginning and 162.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.17ms. Allocated memory is still 223.3MB. Free memory was 162.0MB in the beginning and 159.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.51ms. Allocated memory is still 223.3MB. Free memory was 159.5MB in the beginning and 156.1MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 589.63ms. Allocated memory is still 223.3MB. Free memory was 156.1MB in the beginning and 119.7MB in the end (delta: 36.4MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * TraceAbstraction took 26576.56ms. Allocated memory was 223.3MB in the beginning and 998.2MB in the end (delta: 774.9MB). Free memory was 119.0MB in the beginning and 730.1MB in the end (delta: -611.1MB). Peak memory consumption was 608.3MB. 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 - PositiveResult [Line: 679]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 129 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 26.5s, OverallIterations: 25, TraceHistogramMax: 21, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2554 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2554 mSDsluCounter, 10125 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4489 mSDsCounter, 495 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4096 IncrementalHoareTripleChecker+Invalid, 4591 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 495 mSolverCounterUnsat, 5636 mSDtfsCounter, 4096 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9791 GetRequests, 9736 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16071occurred in iteration=22, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 25 MinimizatonAttempts, 7184 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 212 NumberOfFragments, 862 HoareAnnotationTreeSize, 1 FormulaSimplifications, 10183 FormulaSimplificationTreeSizeReduction, 2.5s HoareSimplificationTime, 1 FormulaSimplificationsInter, 8313 FormulaSimplificationTreeSizeReductionInter, 3.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 7040 NumberOfCodeBlocks, 7040 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 9766 ConstructedInterpolants, 40 QuantifiedInterpolants, 18794 SizeOfPredicates, 15 NumberOfNonLiveVariables, 8067 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 31 InterpolantComputations, 19 PerfectInterpolantSequences, 47696/48585 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((blastFlag == 2) && (s__hit == 0)) && (8640 == s__state)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296))) && !((s__s3__tmp__next_state___0 == 8497))) || (((!((s__hit == 0)) && (blastFlag == 3)) && (s__s3__tmp__next_state___0 == 8640)) && (8448 == s__state))) || ((blastFlag == 1) && (8640 == s__state))) || ((((blastFlag == 2) && (8512 == s__state)) && (s__hit == 0)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296)))) || ((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && (s__hit == 0)) && (8560 == s__state))) || (((blastFlag == 1) && (s__hit == 0)) && (8656 == s__state))) || ((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && (8512 == s__state)) && (s__hit == 0))) || ((((blastFlag == 2) && (8656 == s__state)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296))) && !((s__s3__tmp__next_state___0 == 8497)))) || (((blastFlag == 2) && (s__hit == 0)) && (3 == s__state))) || ((blastFlag == 1) && (8672 == s__state))) || (((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && (s__s3__tmp__next_state___0 == 8576)) && (s__hit == 0)) && (8448 == s__state))) || (((s__s3__tmp__next_state___0 == 8482) && (s__hit == 0)) && (8448 == s__state))) || (((!((s__hit == 0)) && (blastFlag == 1)) && (s__s3__tmp__next_state___0 == 8640)) && (8448 == s__state))) || ((((((blastFlag == 2) && !((s__s3__tmp__next_state___0 == 8496))) && (8592 == s__state)) && (s__hit == 0)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296))) && !((s__s3__tmp__next_state___0 == 8497)))) || ((blastFlag == 1) && (8592 == s__state))) || ((blastFlag == 1) && (8528 == s__state))) || (((blastFlag == 1) && (s__s3__tmp__next_state___0 == 3)) && (8448 == s__state))) || (((((blastFlag == 2) && (s__s3__tmp__next_state___0 == 8576)) && (s__hit == 0)) && (8576 == s__state)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296)))) || ((((blastFlag == 2) && (s__hit == 0)) && (8544 == s__state)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296)))) || ((blastFlag == 1) && (s__state == 8466))) || ((blastFlag == 1) && (8560 == s__state))) || ((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && (8656 == s__state)) && !((s__s3__tmp__next_state___0 == 8497)))) || ((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && (s__hit == 0)) && (8528 == s__state))) || (((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && (8592 == s__state)) && (s__s3__tmp__next_state___0 == 8576)) && (s__hit == 0))) || (((s__s3__tmp__next_state___0 == 8482) && (blastFlag == 1)) && (8448 == s__state))) || ((s__state == 8464) && (blastFlag == 0))) || ((!((s__s3__tmp__next_state___0 == 8496)) && (s__hit == 0)) && (3 == s__state))) || ((blastFlag == 1) && (8608 == s__state))) || ((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && (s__hit == 0)) && (8544 == s__state))) || ((blastFlag == 1) && (8544 == s__state))) || ((((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && !((s__s3__tmp__next_state___0 == 8496))) && (8496 == s__state)) && (s__hit == 0)) && !((s__s3__tmp__next_state___0 == 8497)))) || (((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && (s__hit == 0)) && (8640 == s__state)) && !((s__s3__tmp__next_state___0 == 8497)))) || ((((blastFlag == 2) && (s__hit == 0)) && (8560 == s__state)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296)))) || ((blastFlag == 1) && (3 == s__state))) || (((!((s__hit == 0)) && (blastFlag == 3)) && (s__s3__tmp__next_state___0 == 8640)) && (8640 == s__state))) || ((blastFlag == 1) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296)))) || ((((((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496) && (blastFlag == 3)) && (s__s3__tmp__next_state___0 == 3)) && (s__hit == 0)) && (8448 == s__state))) || (((blastFlag == 1) && (s__s3__tmp__next_state___0 == 8576)) && (8448 == s__state))) || ((((((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496) && (blastFlag == 3)) && (s__hit == 0)) && (8672 == s__state)) && !((s__s3__tmp__next_state___0 == 8497)))) || ((blastFlag == 1) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == s__state))) || (((((blastFlag == 2) && (s__s3__tmp__next_state___0 == 8576)) && (s__hit == 0)) && (s__state == 8466)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296)))) || (((blastFlag == 1) && (s__s3__tmp__next_state___0 == 8576)) && (8576 == s__state))) || (((s__s3__tmp__next_state___0 == 8482) && (8482 == s__state)) && (s__hit == 0))) || (((s__s3__tmp__next_state___0 == 8482) && (blastFlag == 1)) && (8482 == s__state))) || (((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && (8608 == s__state)) && (s__s3__tmp__next_state___0 == 8576)) && (s__hit == 0))) || ((((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && !((s__s3__tmp__next_state___0 == 8496))) && (s__hit == 0)) && (s__state == 8466)) && !((s__s3__tmp__next_state___0 == 8497)))) || ((((((blastFlag == 2) && !((s__s3__tmp__next_state___0 == 8496))) && (8608 == s__state)) && (s__hit == 0)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296))) && !((s__s3__tmp__next_state___0 == 8497)))) || ((!((s__hit == 0)) && (blastFlag == 3)) && (8672 == s__state))) || ((((blastFlag == 2) && (s__hit == 0)) && (8528 == s__state)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296)))) || ((!((s__hit == 0)) && (blastFlag == 2)) && (8656 == s__state))) || (((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && (s__s3__tmp__next_state___0 == 8576)) && (s__hit == 0)) && (8576 == s__state))) || (((((blastFlag == 3) && (s__hit == 0)) && (8672 == s__state)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296))) && !((s__s3__tmp__next_state___0 == 8497)))) || (((blastFlag == 3) && (s__s3__tmp__next_state___0 == 8640)) && (3 == s__state))) || (((((blastFlag == 2) && (s__s3__tmp__next_state___0 == 8576)) && (s__hit == 0)) && (8448 == s__state)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296)))) || (((((blastFlag == 3) && (s__s3__tmp__next_state___0 == 3)) && (s__hit == 0)) && (8448 == s__state)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296)))) RESULT: Ultimate proved your program to be correct! [2023-12-21 21:30:27,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...