/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_clnt_3.BV.c.cil-1a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 21:29:29,047 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 21:29:29,096 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 21:29:29,101 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 21:29:29,101 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 21:29:29,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 21:29:29,121 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 21:29:29,121 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 21:29:29,122 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 21:29:29,122 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 21:29:29,122 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 21:29:29,123 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 21:29:29,123 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 21:29:29,124 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 21:29:29,124 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 21:29:29,124 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 21:29:29,125 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 21:29:29,125 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 21:29:29,125 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 21:29:29,126 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 21:29:29,126 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 21:29:29,126 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 21:29:29,127 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 21:29:29,127 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-21 21:29:29,127 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-21 21:29:29,128 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 21:29:29,128 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-21 21:29:29,128 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 21:29:29,129 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 21:29:29,129 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 21:29:29,129 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 21:29:29,130 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 21:29:29,130 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 21:29:29,130 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 21:29:29,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 21:29:29,131 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 21:29:29,131 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 21:29:29,131 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 21:29:29,132 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-21 21:29:29,132 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-21 21:29:29,132 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 21:29:29,133 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 21:29:29,133 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 21:29:29,133 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 21:29:29,134 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 21:29:29,134 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-21 21:29:29,134 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-21 21:29:29,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 21:29:29,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 21:29:29,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 21:29:29,401 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 21:29:29,402 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 21:29:29,403 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-1a.c [2023-12-21 21:29:30,537 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 21:29:30,770 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 21:29:30,770 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-1a.c [2023-12-21 21:29:30,783 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9139ae71/2807903dd05d44118f38c7ca8a5dd06f/FLAG42cacc08f [2023-12-21 21:29:30,797 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9139ae71/2807903dd05d44118f38c7ca8a5dd06f [2023-12-21 21:29:30,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 21:29:30,801 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 21:29:30,804 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 21:29:30,804 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 21:29:30,808 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 21:29:30,809 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:29:30" (1/1) ... [2023-12-21 21:29:30,810 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25115877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:30, skipping insertion in model container [2023-12-21 21:29:30,810 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:29:30" (1/1) ... [2023-12-21 21:29:30,849 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 21:29:31,005 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_clnt_3.BV.c.cil-1a.c[37883,37896] [2023-12-21 21:29:31,011 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 21:29:31,033 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 21:29:31,079 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_clnt_3.BV.c.cil-1a.c[37883,37896] [2023-12-21 21:29:31,094 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 21:29:31,105 INFO L206 MainTranslator]: Completed translation [2023-12-21 21:29:31,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:31 WrapperNode [2023-12-21 21:29:31,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 21:29:31,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 21:29:31,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 21:29:31,107 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 21:29:31,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:31" (1/1) ... [2023-12-21 21:29:31,126 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:31" (1/1) ... [2023-12-21 21:29:31,159 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 474 [2023-12-21 21:29:31,159 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 21:29:31,160 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 21:29:31,160 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 21:29:31,160 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 21:29:31,170 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:31" (1/1) ... [2023-12-21 21:29:31,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:31" (1/1) ... [2023-12-21 21:29:31,176 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:31" (1/1) ... [2023-12-21 21:29:31,197 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 21:29:31,197 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:31" (1/1) ... [2023-12-21 21:29:31,197 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:31" (1/1) ... [2023-12-21 21:29:31,203 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:31" (1/1) ... [2023-12-21 21:29:31,209 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:31" (1/1) ... [2023-12-21 21:29:31,211 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:31" (1/1) ... [2023-12-21 21:29:31,213 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:31" (1/1) ... [2023-12-21 21:29:31,222 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 21:29:31,223 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 21:29:31,223 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 21:29:31,223 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 21:29:31,224 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:31" (1/1) ... [2023-12-21 21:29:31,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 21:29:31,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 21:29:31,253 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 21:29:31,284 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 21:29:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 21:29:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-21 21:29:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 21:29:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 21:29:31,401 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 21:29:31,405 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 21:29:31,425 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-21 21:29:31,868 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2023-12-21 21:29:31,868 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2023-12-21 21:29:31,868 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 21:29:31,906 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 21:29:31,906 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 21:29:31,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:29:31 BoogieIcfgContainer [2023-12-21 21:29:31,906 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 21:29:31,917 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 21:29:31,917 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 21:29:31,920 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 21:29:31,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 09:29:30" (1/3) ... [2023-12-21 21:29:31,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5ed054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:29:31, skipping insertion in model container [2023-12-21 21:29:31,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:31" (2/3) ... [2023-12-21 21:29:31,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5ed054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:29:31, skipping insertion in model container [2023-12-21 21:29:31,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:29:31" (3/3) ... [2023-12-21 21:29:31,923 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-1a.c [2023-12-21 21:29:31,936 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 21:29:31,937 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 21:29:31,987 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 21:29:31,992 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;@2145180, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 21:29:31,992 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 21:29:31,997 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 117 states have (on average 1.7777777777777777) internal successors, (208), 118 states have internal predecessors, (208), 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 21:29:32,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-21 21:29:32,005 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:32,006 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] [2023-12-21 21:29:32,006 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:32,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:32,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1053989179, now seen corresponding path program 1 times [2023-12-21 21:29:32,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:32,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77799336] [2023-12-21 21:29:32,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:32,024 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 21:29:32,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:32,030 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 21:29:32,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-21 21:29:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:32,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:32,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:32,129 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 21:29:32,129 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:32,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:32,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [77799336] [2023-12-21 21:29:32,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [77799336] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:32,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:32,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 21:29:32,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328418315] [2023-12-21 21:29:32,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:32,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:32,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:32,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:32,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:32,160 INFO L87 Difference]: Start difference. First operand has 119 states, 117 states have (on average 1.7777777777777777) internal successors, (208), 118 states have internal predecessors, (208), 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 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 21:29:32,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:32,316 INFO L93 Difference]: Finished difference Result 233 states and 409 transitions. [2023-12-21 21:29:32,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:32,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 23 [2023-12-21 21:29:32,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:32,327 INFO L225 Difference]: With dead ends: 233 [2023-12-21 21:29:32,328 INFO L226 Difference]: Without dead ends: 109 [2023-12-21 21:29:32,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 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 21:29:32,334 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 7 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:32,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 303 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:32,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-12-21 21:29:32,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2023-12-21 21:29:32,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 108 states have (on average 1.5462962962962963) internal successors, (167), 108 states have internal predecessors, (167), 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 21:29:32,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 167 transitions. [2023-12-21 21:29:32,371 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 167 transitions. Word has length 23 [2023-12-21 21:29:32,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:32,371 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 167 transitions. [2023-12-21 21:29:32,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 21:29:32,372 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 167 transitions. [2023-12-21 21:29:32,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-21 21:29:32,374 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:32,374 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:32,380 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 21:29:32,576 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 21:29:32,577 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:32,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:32,578 INFO L85 PathProgramCache]: Analyzing trace with hash 433548802, now seen corresponding path program 1 times [2023-12-21 21:29:32,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:32,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1995781052] [2023-12-21 21:29:32,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:32,579 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 21:29:32,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:32,580 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 21:29:32,583 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 21:29:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:32,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:32,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:32,666 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:29:32,666 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:32,666 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:32,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1995781052] [2023-12-21 21:29:32,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1995781052] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:32,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:32,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:32,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032897560] [2023-12-21 21:29:32,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:32,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:32,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:32,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:32,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:32,675 INFO L87 Difference]: Start difference. First operand 109 states and 167 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:32,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:32,790 INFO L93 Difference]: Finished difference Result 226 states and 349 transitions. [2023-12-21 21:29:32,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:32,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2023-12-21 21:29:32,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:32,796 INFO L225 Difference]: With dead ends: 226 [2023-12-21 21:29:32,796 INFO L226 Difference]: Without dead ends: 126 [2023-12-21 21:29:32,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 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 21:29:32,798 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 13 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:32,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 232 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:32,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-12-21 21:29:32,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 123. [2023-12-21 21:29:32,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 122 states have (on average 1.5245901639344261) internal successors, (186), 122 states have internal predecessors, (186), 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 21:29:32,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 186 transitions. [2023-12-21 21:29:32,818 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 186 transitions. Word has length 33 [2023-12-21 21:29:32,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:32,819 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 186 transitions. [2023-12-21 21:29:32,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:32,820 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 186 transitions. [2023-12-21 21:29:32,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-21 21:29:32,821 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:32,822 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 21:29:32,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-21 21:29:33,027 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 21:29:33,028 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:33,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:33,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1707743867, now seen corresponding path program 1 times [2023-12-21 21:29:33,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:33,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1337779816] [2023-12-21 21:29:33,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:33,029 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 21:29:33,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:33,031 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 21:29:33,033 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 21:29:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:33,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:33,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:33,117 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 21:29:33,117 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:33,117 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:33,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1337779816] [2023-12-21 21:29:33,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1337779816] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:33,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:33,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 21:29:33,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739430067] [2023-12-21 21:29:33,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:33,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:33,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:33,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:33,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:33,120 INFO L87 Difference]: Start difference. First operand 123 states and 186 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:33,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:33,142 INFO L93 Difference]: Finished difference Result 261 states and 390 transitions. [2023-12-21 21:29:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:33,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2023-12-21 21:29:33,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:33,144 INFO L225 Difference]: With dead ends: 261 [2023-12-21 21:29:33,144 INFO L226 Difference]: Without dead ends: 147 [2023-12-21 21:29:33,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 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 21:29:33,145 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 21 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:33,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 300 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:29:33,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-12-21 21:29:33,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2023-12-21 21:29:33,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 146 states have (on average 1.4863013698630136) internal successors, (217), 146 states have internal predecessors, (217), 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 21:29:33,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 217 transitions. [2023-12-21 21:29:33,152 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 217 transitions. Word has length 46 [2023-12-21 21:29:33,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:33,153 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 217 transitions. [2023-12-21 21:29:33,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:33,153 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 217 transitions. [2023-12-21 21:29:33,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-21 21:29:33,154 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:33,154 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 21:29:33,156 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 21:29:33,356 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 21:29:33,356 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:33,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:33,357 INFO L85 PathProgramCache]: Analyzing trace with hash -781785095, now seen corresponding path program 1 times [2023-12-21 21:29:33,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:33,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1580109953] [2023-12-21 21:29:33,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:33,358 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 21:29:33,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:33,359 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 21:29:33,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-21 21:29:33,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:33,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:33,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:33,432 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 21:29:33,432 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:33,433 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:33,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1580109953] [2023-12-21 21:29:33,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1580109953] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:33,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:33,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:33,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93961646] [2023-12-21 21:29:33,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:33,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:33,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:33,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:33,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:33,435 INFO L87 Difference]: Start difference. First operand 147 states and 217 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:33,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:33,568 INFO L93 Difference]: Finished difference Result 281 states and 424 transitions. [2023-12-21 21:29:33,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:33,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2023-12-21 21:29:33,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:33,570 INFO L225 Difference]: With dead ends: 281 [2023-12-21 21:29:33,570 INFO L226 Difference]: Without dead ends: 167 [2023-12-21 21:29:33,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 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 21:29:33,577 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 16 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:33,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 245 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:33,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-12-21 21:29:33,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 163. [2023-12-21 21:29:33,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.4691358024691359) internal successors, (238), 162 states have internal predecessors, (238), 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 21:29:33,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 238 transitions. [2023-12-21 21:29:33,591 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 238 transitions. Word has length 46 [2023-12-21 21:29:33,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:33,592 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 238 transitions. [2023-12-21 21:29:33,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:33,592 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 238 transitions. [2023-12-21 21:29:33,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-21 21:29:33,593 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:33,594 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 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] [2023-12-21 21:29:33,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-21 21:29:33,794 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 21:29:33,794 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:33,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:33,795 INFO L85 PathProgramCache]: Analyzing trace with hash -845701464, now seen corresponding path program 1 times [2023-12-21 21:29:33,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:33,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [750703838] [2023-12-21 21:29:33,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:33,796 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 21:29:33,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:33,797 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 21:29:33,798 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 21:29:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:33,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 21:29:33,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:34,058 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-21 21:29:34,059 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 21:29:34,236 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-21 21:29:34,236 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:34,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [750703838] [2023-12-21 21:29:34,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [750703838] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 21:29:34,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 21:29:34,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-21 21:29:34,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894311118] [2023-12-21 21:29:34,237 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 21:29:34,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 21:29:34,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:34,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 21:29:34,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 21:29:34,239 INFO L87 Difference]: Start difference. First operand 163 states and 238 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:34,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:34,671 INFO L93 Difference]: Finished difference Result 544 states and 826 transitions. [2023-12-21 21:29:34,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 21:29:34,672 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-12-21 21:29:34,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:34,674 INFO L225 Difference]: With dead ends: 544 [2023-12-21 21:29:34,674 INFO L226 Difference]: Without dead ends: 413 [2023-12-21 21:29:34,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-12-21 21:29:34,675 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 402 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:34,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 457 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 21:29:34,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2023-12-21 21:29:34,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 401. [2023-12-21 21:29:34,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 400 states have (on average 1.4725) internal successors, (589), 400 states have internal predecessors, (589), 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 21:29:34,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 589 transitions. [2023-12-21 21:29:34,695 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 589 transitions. Word has length 62 [2023-12-21 21:29:34,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:34,695 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 589 transitions. [2023-12-21 21:29:34,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:34,695 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 589 transitions. [2023-12-21 21:29:34,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-21 21:29:34,701 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:34,701 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 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] [2023-12-21 21:29:34,706 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 21:29:34,903 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 21:29:34,904 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:34,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:34,904 INFO L85 PathProgramCache]: Analyzing trace with hash -626846746, now seen corresponding path program 1 times [2023-12-21 21:29:34,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:34,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1579157080] [2023-12-21 21:29:34,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:34,905 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 21:29:34,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:34,906 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 21:29:34,907 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 21:29:34,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:34,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:34,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:35,005 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-21 21:29:35,005 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:35,005 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:35,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1579157080] [2023-12-21 21:29:35,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1579157080] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:35,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:35,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:35,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413196622] [2023-12-21 21:29:35,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:35,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:35,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:35,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:35,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:35,007 INFO L87 Difference]: Start difference. First operand 401 states and 589 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 21:29:35,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:35,032 INFO L93 Difference]: Finished difference Result 893 states and 1330 transitions. [2023-12-21 21:29:35,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:35,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 62 [2023-12-21 21:29:35,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:35,035 INFO L225 Difference]: With dead ends: 893 [2023-12-21 21:29:35,035 INFO L226 Difference]: Without dead ends: 551 [2023-12-21 21:29:35,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 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 21:29:35,036 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 124 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:35,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 312 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:29:35,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-12-21 21:29:35,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 549. [2023-12-21 21:29:35,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 548 states have (on average 1.4817518248175183) internal successors, (812), 548 states have internal predecessors, (812), 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 21:29:35,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 812 transitions. [2023-12-21 21:29:35,051 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 812 transitions. Word has length 62 [2023-12-21 21:29:35,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:35,052 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 812 transitions. [2023-12-21 21:29:35,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 21:29:35,052 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 812 transitions. [2023-12-21 21:29:35,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-21 21:29:35,054 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:35,054 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 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] [2023-12-21 21:29:35,062 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 21:29:35,260 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 21:29:35,261 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:35,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:35,261 INFO L85 PathProgramCache]: Analyzing trace with hash -411972378, now seen corresponding path program 1 times [2023-12-21 21:29:35,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:35,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [874756071] [2023-12-21 21:29:35,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:35,261 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 21:29:35,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:35,263 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 21:29:35,265 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 21:29:35,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:35,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:35,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:35,371 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-21 21:29:35,371 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:35,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:35,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [874756071] [2023-12-21 21:29:35,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [874756071] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:35,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:35,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:35,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494942514] [2023-12-21 21:29:35,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:35,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:35,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:35,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:35,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:35,373 INFO L87 Difference]: Start difference. First operand 549 states and 812 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 21:29:35,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:35,396 INFO L93 Difference]: Finished difference Result 553 states and 814 transitions. [2023-12-21 21:29:35,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:35,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 62 [2023-12-21 21:29:35,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:35,398 INFO L225 Difference]: With dead ends: 553 [2023-12-21 21:29:35,398 INFO L226 Difference]: Without dead ends: 401 [2023-12-21 21:29:35,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 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 21:29:35,399 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 122 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:35,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 384 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:29:35,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2023-12-21 21:29:35,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 399. [2023-12-21 21:29:35,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 398 states have (on average 1.4572864321608041) internal successors, (580), 398 states have internal predecessors, (580), 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 21:29:35,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 580 transitions. [2023-12-21 21:29:35,410 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 580 transitions. Word has length 62 [2023-12-21 21:29:35,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:35,410 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 580 transitions. [2023-12-21 21:29:35,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 21:29:35,410 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 580 transitions. [2023-12-21 21:29:35,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-21 21:29:35,411 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:35,411 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 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] [2023-12-21 21:29:35,421 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 21:29:35,614 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 21:29:35,614 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:35,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:35,614 INFO L85 PathProgramCache]: Analyzing trace with hash -193117660, now seen corresponding path program 1 times [2023-12-21 21:29:35,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:35,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [723165768] [2023-12-21 21:29:35,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:35,615 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 21:29:35,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:35,616 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 21:29:35,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-21 21:29:35,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:35,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 21:29:35,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:35,800 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 11 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 21:29:35,801 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 21:29:35,888 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 21:29:35,888 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:35,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [723165768] [2023-12-21 21:29:35,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [723165768] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 21:29:35,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 21:29:35,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-12-21 21:29:35,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19748593] [2023-12-21 21:29:35,889 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 21:29:35,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 21:29:35,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:35,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 21:29:35,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-21 21:29:35,890 INFO L87 Difference]: Start difference. First operand 399 states and 580 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 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 21:29:36,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:36,273 INFO L93 Difference]: Finished difference Result 626 states and 940 transitions. [2023-12-21 21:29:36,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 21:29:36,274 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 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 62 [2023-12-21 21:29:36,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:36,276 INFO L225 Difference]: With dead ends: 626 [2023-12-21 21:29:36,276 INFO L226 Difference]: Without dead ends: 475 [2023-12-21 21:29:36,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2023-12-21 21:29:36,277 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 600 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:36,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 1062 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 21:29:36,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2023-12-21 21:29:36,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 456. [2023-12-21 21:29:36,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 455 states have (on average 1.421978021978022) internal successors, (647), 455 states have internal predecessors, (647), 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 21:29:36,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 647 transitions. [2023-12-21 21:29:36,291 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 647 transitions. Word has length 62 [2023-12-21 21:29:36,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:36,291 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 647 transitions. [2023-12-21 21:29:36,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 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 21:29:36,291 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 647 transitions. [2023-12-21 21:29:36,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-21 21:29:36,292 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:36,292 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 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] [2023-12-21 21:29:36,299 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 21:29:36,499 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 21:29:36,499 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:36,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:36,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1735736275, now seen corresponding path program 1 times [2023-12-21 21:29:36,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:36,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1471623234] [2023-12-21 21:29:36,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:36,500 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:29:36,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:36,503 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 21:29:36,528 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 21:29:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:36,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:36,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:36,573 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-21 21:29:36,573 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:36,573 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:36,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1471623234] [2023-12-21 21:29:36,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1471623234] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:36,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:36,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:36,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591497590] [2023-12-21 21:29:36,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:36,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:36,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:36,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:36,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:36,575 INFO L87 Difference]: Start difference. First operand 456 states and 647 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 21:29:36,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:36,679 INFO L93 Difference]: Finished difference Result 899 states and 1298 transitions. [2023-12-21 21:29:36,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:36,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 78 [2023-12-21 21:29:36,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:36,681 INFO L225 Difference]: With dead ends: 899 [2023-12-21 21:29:36,681 INFO L226 Difference]: Without dead ends: 502 [2023-12-21 21:29:36,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 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 21:29:36,684 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 13 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:36,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 249 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:36,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2023-12-21 21:29:36,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 496. [2023-12-21 21:29:36,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 495 states have (on average 1.408080808080808) internal successors, (697), 495 states have internal predecessors, (697), 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 21:29:36,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 697 transitions. [2023-12-21 21:29:36,719 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 697 transitions. Word has length 78 [2023-12-21 21:29:36,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:36,719 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 697 transitions. [2023-12-21 21:29:36,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 21:29:36,719 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 697 transitions. [2023-12-21 21:29:36,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-21 21:29:36,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:36,720 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2023-12-21 21:29:36,727 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 21:29:36,921 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 21:29:36,921 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:36,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:36,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1606695298, now seen corresponding path program 1 times [2023-12-21 21:29:36,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:36,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831690877] [2023-12-21 21:29:36,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:36,922 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 21:29:36,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:36,923 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 21:29:36,925 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 21:29:36,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:36,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:36,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:37,014 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-21 21:29:37,014 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:37,014 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:37,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831690877] [2023-12-21 21:29:37,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831690877] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:37,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:37,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:37,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725517848] [2023-12-21 21:29:37,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:37,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:37,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:37,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:37,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:37,016 INFO L87 Difference]: Start difference. First operand 496 states and 697 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 21:29:37,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:37,056 INFO L93 Difference]: Finished difference Result 1366 states and 1932 transitions. [2023-12-21 21:29:37,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:37,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 21:29:37,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:37,060 INFO L225 Difference]: With dead ends: 1366 [2023-12-21 21:29:37,061 INFO L226 Difference]: Without dead ends: 929 [2023-12-21 21:29:37,061 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 21:29:37,062 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 122 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:37,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 344 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:29:37,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2023-12-21 21:29:37,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 929. [2023-12-21 21:29:37,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 928 states have (on average 1.4019396551724137) internal successors, (1301), 928 states have internal predecessors, (1301), 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 21:29:37,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1301 transitions. [2023-12-21 21:29:37,085 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1301 transitions. Word has length 96 [2023-12-21 21:29:37,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:37,086 INFO L495 AbstractCegarLoop]: Abstraction has 929 states and 1301 transitions. [2023-12-21 21:29:37,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 21:29:37,090 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1301 transitions. [2023-12-21 21:29:37,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 21:29:37,095 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:37,095 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2023-12-21 21:29:37,103 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 21:29:37,298 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 21:29:37,298 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:37,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:37,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1399797936, now seen corresponding path program 1 times [2023-12-21 21:29:37,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:37,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [424149815] [2023-12-21 21:29:37,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:37,299 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 21:29:37,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:37,300 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 21:29:37,306 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 21:29:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:37,348 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:37,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:37,369 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-21 21:29:37,370 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:37,370 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:37,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [424149815] [2023-12-21 21:29:37,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [424149815] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:37,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:37,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:37,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901479940] [2023-12-21 21:29:37,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:37,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:37,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:37,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:37,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:37,371 INFO L87 Difference]: Start difference. First operand 929 states and 1301 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 21:29:37,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:37,404 INFO L93 Difference]: Finished difference Result 1839 states and 2578 transitions. [2023-12-21 21:29:37,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:37,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 97 [2023-12-21 21:29:37,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:37,408 INFO L225 Difference]: With dead ends: 1839 [2023-12-21 21:29:37,408 INFO L226 Difference]: Without dead ends: 969 [2023-12-21 21:29:37,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 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 21:29:37,409 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 11 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:37,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 328 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:29:37,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2023-12-21 21:29:37,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 969. [2023-12-21 21:29:37,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 968 states have (on average 1.3977272727272727) internal successors, (1353), 968 states have internal predecessors, (1353), 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 21:29:37,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1353 transitions. [2023-12-21 21:29:37,431 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1353 transitions. Word has length 97 [2023-12-21 21:29:37,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:37,432 INFO L495 AbstractCegarLoop]: Abstraction has 969 states and 1353 transitions. [2023-12-21 21:29:37,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 21:29:37,432 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1353 transitions. [2023-12-21 21:29:37,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 21:29:37,433 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:37,433 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2023-12-21 21:29:37,439 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 21:29:37,636 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 21:29:37,636 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:37,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:37,637 INFO L85 PathProgramCache]: Analyzing trace with hash 460965900, now seen corresponding path program 1 times [2023-12-21 21:29:37,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:37,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462357425] [2023-12-21 21:29:37,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:37,637 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 21:29:37,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:37,638 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 21:29:37,646 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 21:29:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:37,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:37,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:37,717 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-12-21 21:29:37,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:37,718 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:37,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462357425] [2023-12-21 21:29:37,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462357425] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:37,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:37,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:37,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135334009] [2023-12-21 21:29:37,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:37,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:37,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:37,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:37,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:37,719 INFO L87 Difference]: Start difference. First operand 969 states and 1353 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 21:29:37,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:37,762 INFO L93 Difference]: Finished difference Result 2251 states and 3172 transitions. [2023-12-21 21:29:37,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:37,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 98 [2023-12-21 21:29:37,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:37,767 INFO L225 Difference]: With dead ends: 2251 [2023-12-21 21:29:37,767 INFO L226 Difference]: Without dead ends: 1341 [2023-12-21 21:29:37,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 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 21:29:37,769 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 121 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:37,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 444 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:29:37,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2023-12-21 21:29:37,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1341. [2023-12-21 21:29:37,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1341 states, 1340 states have (on average 1.4067164179104477) internal successors, (1885), 1340 states have internal predecessors, (1885), 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 21:29:37,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1885 transitions. [2023-12-21 21:29:37,799 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1885 transitions. Word has length 98 [2023-12-21 21:29:37,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:37,800 INFO L495 AbstractCegarLoop]: Abstraction has 1341 states and 1885 transitions. [2023-12-21 21:29:37,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 21:29:37,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1885 transitions. [2023-12-21 21:29:37,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 21:29:37,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:37,801 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2023-12-21 21:29:37,807 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 21:29:38,003 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 21:29:38,004 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:38,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:38,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1344472434, now seen corresponding path program 1 times [2023-12-21 21:29:38,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:38,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1603016515] [2023-12-21 21:29:38,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:38,005 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 21:29:38,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:38,006 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 21:29:38,015 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 21:29:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:38,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:38,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:38,081 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-21 21:29:38,081 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:38,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:38,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1603016515] [2023-12-21 21:29:38,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1603016515] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:38,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:38,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:38,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503723950] [2023-12-21 21:29:38,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:38,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:38,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:38,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:38,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:38,083 INFO L87 Difference]: Start difference. First operand 1341 states and 1885 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 21:29:38,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:38,131 INFO L93 Difference]: Finished difference Result 2671 states and 3752 transitions. [2023-12-21 21:29:38,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:38,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 98 [2023-12-21 21:29:38,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:38,135 INFO L225 Difference]: With dead ends: 2671 [2023-12-21 21:29:38,136 INFO L226 Difference]: Without dead ends: 1389 [2023-12-21 21:29:38,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 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 21:29:38,138 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 10 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:38,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 337 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:29:38,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1389 states. [2023-12-21 21:29:38,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1389 to 1389. [2023-12-21 21:29:38,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1389 states, 1388 states have (on average 1.3998559077809798) internal successors, (1943), 1388 states have internal predecessors, (1943), 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 21:29:38,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 1943 transitions. [2023-12-21 21:29:38,168 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 1943 transitions. Word has length 98 [2023-12-21 21:29:38,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:38,168 INFO L495 AbstractCegarLoop]: Abstraction has 1389 states and 1943 transitions. [2023-12-21 21:29:38,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 21:29:38,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 1943 transitions. [2023-12-21 21:29:38,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-21 21:29:38,170 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:38,170 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:38,179 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 21:29:38,373 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 21:29:38,373 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:38,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:38,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1531987773, now seen corresponding path program 1 times [2023-12-21 21:29:38,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:38,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1430203406] [2023-12-21 21:29:38,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:38,374 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:29:38,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:38,375 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 21:29:38,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-21 21:29:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:38,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:38,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:38,463 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 236 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-12-21 21:29:38,464 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:38,464 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:38,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1430203406] [2023-12-21 21:29:38,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1430203406] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:38,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:38,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:38,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571137181] [2023-12-21 21:29:38,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:38,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:38,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:38,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:38,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:38,466 INFO L87 Difference]: Start difference. First operand 1389 states and 1943 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 21:29:38,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:38,589 INFO L93 Difference]: Finished difference Result 2871 states and 4075 transitions. [2023-12-21 21:29:38,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:38,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 149 [2023-12-21 21:29:38,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:38,594 INFO L225 Difference]: With dead ends: 2871 [2023-12-21 21:29:38,594 INFO L226 Difference]: Without dead ends: 1541 [2023-12-21 21:29:38,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 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 21:29:38,596 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 20 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:38,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 248 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:38,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2023-12-21 21:29:38,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 1521. [2023-12-21 21:29:38,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 1.3848684210526316) internal successors, (2105), 1520 states have internal predecessors, (2105), 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 21:29:38,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 2105 transitions. [2023-12-21 21:29:38,630 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 2105 transitions. Word has length 149 [2023-12-21 21:29:38,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:38,631 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 2105 transitions. [2023-12-21 21:29:38,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 21:29:38,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 2105 transitions. [2023-12-21 21:29:38,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-21 21:29:38,633 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:38,633 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:38,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-21 21:29:38,836 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 21:29:38,836 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:38,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:38,837 INFO L85 PathProgramCache]: Analyzing trace with hash -362185077, now seen corresponding path program 1 times [2023-12-21 21:29:38,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:38,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262872849] [2023-12-21 21:29:38,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:38,837 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 21:29:38,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:38,839 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 21:29:38,866 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 21:29:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:38,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:38,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:38,929 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2023-12-21 21:29:38,929 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:38,929 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:38,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262872849] [2023-12-21 21:29:38,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1262872849] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:38,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:38,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:38,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783480985] [2023-12-21 21:29:38,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:38,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:38,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:38,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:38,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:38,931 INFO L87 Difference]: Start difference. First operand 1521 states and 2105 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 21:29:39,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:39,062 INFO L93 Difference]: Finished difference Result 3145 states and 4420 transitions. [2023-12-21 21:29:39,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:39,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 169 [2023-12-21 21:29:39,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:39,068 INFO L225 Difference]: With dead ends: 3145 [2023-12-21 21:29:39,068 INFO L226 Difference]: Without dead ends: 1683 [2023-12-21 21:29:39,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 167 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 21:29:39,071 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 19 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:39,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 250 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:39,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2023-12-21 21:29:39,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1665. [2023-12-21 21:29:39,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1665 states, 1664 states have (on average 1.3695913461538463) internal successors, (2279), 1664 states have internal predecessors, (2279), 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 21:29:39,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1665 states to 1665 states and 2279 transitions. [2023-12-21 21:29:39,110 INFO L78 Accepts]: Start accepts. Automaton has 1665 states and 2279 transitions. Word has length 169 [2023-12-21 21:29:39,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:39,110 INFO L495 AbstractCegarLoop]: Abstraction has 1665 states and 2279 transitions. [2023-12-21 21:29:39,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 21:29:39,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1665 states and 2279 transitions. [2023-12-21 21:29:39,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-21 21:29:39,113 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:39,114 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:39,119 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 21:29:39,317 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 21:29:39,317 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:39,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:39,317 INFO L85 PathProgramCache]: Analyzing trace with hash 748470032, now seen corresponding path program 1 times [2023-12-21 21:29:39,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:39,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612411487] [2023-12-21 21:29:39,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:39,318 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 21:29:39,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:39,319 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 21:29:39,320 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 21:29:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:39,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:39,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:39,437 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2023-12-21 21:29:39,437 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:39,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:39,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1612411487] [2023-12-21 21:29:39,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1612411487] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:39,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:39,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:39,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761294112] [2023-12-21 21:29:39,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:39,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:39,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:39,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:39,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:39,439 INFO L87 Difference]: Start difference. First operand 1665 states and 2279 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:39,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:39,582 INFO L93 Difference]: Finished difference Result 3445 states and 4786 transitions. [2023-12-21 21:29:39,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:39,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2023-12-21 21:29:39,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:39,589 INFO L225 Difference]: With dead ends: 3445 [2023-12-21 21:29:39,589 INFO L226 Difference]: Without dead ends: 1839 [2023-12-21 21:29:39,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 190 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 21:29:39,592 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 20 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:39,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 250 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:39,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1839 states. [2023-12-21 21:29:39,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1839 to 1827. [2023-12-21 21:29:39,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1827 states, 1826 states have (on average 1.3532311062431543) internal successors, (2471), 1826 states have internal predecessors, (2471), 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 21:29:39,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1827 states to 1827 states and 2471 transitions. [2023-12-21 21:29:39,636 INFO L78 Accepts]: Start accepts. Automaton has 1827 states and 2471 transitions. Word has length 192 [2023-12-21 21:29:39,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:39,637 INFO L495 AbstractCegarLoop]: Abstraction has 1827 states and 2471 transitions. [2023-12-21 21:29:39,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:39,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1827 states and 2471 transitions. [2023-12-21 21:29:39,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-21 21:29:39,639 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:39,640 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:39,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-21 21:29:39,842 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 21:29:39,843 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:39,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:39,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1162572526, now seen corresponding path program 1 times [2023-12-21 21:29:39,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:39,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899386162] [2023-12-21 21:29:39,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:39,844 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 21:29:39,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:39,845 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 21:29:39,877 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 21:29:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:39,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:39,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:39,941 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2023-12-21 21:29:39,941 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:39,941 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:39,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899386162] [2023-12-21 21:29:39,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [899386162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:39,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:39,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:39,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642454757] [2023-12-21 21:29:39,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:39,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:39,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:39,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:39,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:39,943 INFO L87 Difference]: Start difference. First operand 1827 states and 2471 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:40,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:40,083 INFO L93 Difference]: Finished difference Result 3793 states and 5224 transitions. [2023-12-21 21:29:40,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:40,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2023-12-21 21:29:40,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:40,090 INFO L225 Difference]: With dead ends: 3793 [2023-12-21 21:29:40,090 INFO L226 Difference]: Without dead ends: 2025 [2023-12-21 21:29:40,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 190 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 21:29:40,092 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 25 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:40,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 251 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:40,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2025 states. [2023-12-21 21:29:40,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2025 to 2007. [2023-12-21 21:29:40,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2007 states, 2006 states have (on average 1.3364905284147557) internal successors, (2681), 2006 states have internal predecessors, (2681), 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 21:29:40,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2007 states to 2007 states and 2681 transitions. [2023-12-21 21:29:40,133 INFO L78 Accepts]: Start accepts. Automaton has 2007 states and 2681 transitions. Word has length 192 [2023-12-21 21:29:40,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:40,133 INFO L495 AbstractCegarLoop]: Abstraction has 2007 states and 2681 transitions. [2023-12-21 21:29:40,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:40,133 INFO L276 IsEmpty]: Start isEmpty. Operand 2007 states and 2681 transitions. [2023-12-21 21:29:40,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-12-21 21:29:40,136 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:40,137 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:40,140 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 21:29:40,340 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 21:29:40,340 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:40,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:40,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1089970342, now seen corresponding path program 1 times [2023-12-21 21:29:40,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:40,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1587036826] [2023-12-21 21:29:40,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:40,341 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 21:29:40,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:40,342 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 21:29:40,370 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 21:29:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:40,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:40,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:40,459 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 459 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2023-12-21 21:29:40,459 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:40,459 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:40,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1587036826] [2023-12-21 21:29:40,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1587036826] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:40,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:40,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:40,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747056024] [2023-12-21 21:29:40,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:40,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:40,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:40,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:40,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:40,462 INFO L87 Difference]: Start difference. First operand 2007 states and 2681 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 21:29:40,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:40,531 INFO L93 Difference]: Finished difference Result 5735 states and 7689 transitions. [2023-12-21 21:29:40,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:40,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 221 [2023-12-21 21:29:40,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:40,543 INFO L225 Difference]: With dead ends: 5735 [2023-12-21 21:29:40,543 INFO L226 Difference]: Without dead ends: 3787 [2023-12-21 21:29:40,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 219 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 21:29:40,547 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 122 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:40,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 461 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:29:40,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3787 states. [2023-12-21 21:29:40,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3787 to 3785. [2023-12-21 21:29:40,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3785 states, 3784 states have (on average 1.340644820295983) internal successors, (5073), 3784 states have internal predecessors, (5073), 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 21:29:40,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3785 states to 3785 states and 5073 transitions. [2023-12-21 21:29:40,623 INFO L78 Accepts]: Start accepts. Automaton has 3785 states and 5073 transitions. Word has length 221 [2023-12-21 21:29:40,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:40,623 INFO L495 AbstractCegarLoop]: Abstraction has 3785 states and 5073 transitions. [2023-12-21 21:29:40,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 21:29:40,623 INFO L276 IsEmpty]: Start isEmpty. Operand 3785 states and 5073 transitions. [2023-12-21 21:29:40,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-12-21 21:29:40,628 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:40,628 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:40,635 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 21:29:40,832 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 21:29:40,832 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:40,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:40,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1293954396, now seen corresponding path program 1 times [2023-12-21 21:29:40,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:40,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1929123705] [2023-12-21 21:29:40,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:40,833 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 21:29:40,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:40,834 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 21:29:40,835 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 21:29:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:40,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:40,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:40,934 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-12-21 21:29:40,934 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:40,935 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:40,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1929123705] [2023-12-21 21:29:40,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1929123705] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:40,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:40,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:40,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693178355] [2023-12-21 21:29:40,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:40,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:40,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:40,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:40,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:40,937 INFO L87 Difference]: Start difference. First operand 3785 states and 5073 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 21:29:41,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:41,102 INFO L93 Difference]: Finished difference Result 7949 states and 10866 transitions. [2023-12-21 21:29:41,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:41,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 221 [2023-12-21 21:29:41,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:41,115 INFO L225 Difference]: With dead ends: 7949 [2023-12-21 21:29:41,116 INFO L226 Difference]: Without dead ends: 4223 [2023-12-21 21:29:41,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 219 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 21:29:41,121 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 30 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:41,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 250 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:41,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4223 states. [2023-12-21 21:29:41,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4223 to 4199. [2023-12-21 21:29:41,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4199 states, 4198 states have (on average 1.3213434969032873) internal successors, (5547), 4198 states have internal predecessors, (5547), 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 21:29:41,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4199 states to 4199 states and 5547 transitions. [2023-12-21 21:29:41,240 INFO L78 Accepts]: Start accepts. Automaton has 4199 states and 5547 transitions. Word has length 221 [2023-12-21 21:29:41,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:41,240 INFO L495 AbstractCegarLoop]: Abstraction has 4199 states and 5547 transitions. [2023-12-21 21:29:41,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 21:29:41,240 INFO L276 IsEmpty]: Start isEmpty. Operand 4199 states and 5547 transitions. [2023-12-21 21:29:41,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-12-21 21:29:41,245 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:41,245 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:41,263 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 21:29:41,446 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 21:29:41,446 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:41,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:41,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1075453634, now seen corresponding path program 1 times [2023-12-21 21:29:41,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:41,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1325895316] [2023-12-21 21:29:41,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:41,447 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 21:29:41,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:41,448 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 21:29:41,449 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 21:29:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:41,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:41,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:41,547 INFO L134 CoverageAnalysis]: Checked inductivity of 883 backedges. 462 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2023-12-21 21:29:41,548 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:41,548 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:41,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1325895316] [2023-12-21 21:29:41,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1325895316] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:41,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:41,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:41,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911189548] [2023-12-21 21:29:41,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:41,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:41,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:41,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:41,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:41,549 INFO L87 Difference]: Start difference. First operand 4199 states and 5547 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 21:29:41,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:41,707 INFO L93 Difference]: Finished difference Result 8555 states and 11400 transitions. [2023-12-21 21:29:41,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:41,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 21:29:41,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:41,721 INFO L225 Difference]: With dead ends: 8555 [2023-12-21 21:29:41,721 INFO L226 Difference]: Without dead ends: 4415 [2023-12-21 21:29:41,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 242 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 21:29:41,726 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 26 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:41,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 250 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:41,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4415 states. [2023-12-21 21:29:41,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4415 to 4391. [2023-12-21 21:29:41,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4391 states, 4390 states have (on average 1.314123006833713) internal successors, (5769), 4390 states have internal predecessors, (5769), 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 21:29:41,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 5769 transitions. [2023-12-21 21:29:41,808 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 5769 transitions. Word has length 244 [2023-12-21 21:29:41,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:41,808 INFO L495 AbstractCegarLoop]: Abstraction has 4391 states and 5769 transitions. [2023-12-21 21:29:41,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 21:29:41,809 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 5769 transitions. [2023-12-21 21:29:41,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2023-12-21 21:29:41,814 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:41,815 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 7, 7, 5, 5, 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, 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 21:29:41,821 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 21:29:42,017 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 21:29:42,018 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:42,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:42,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1399967185, now seen corresponding path program 1 times [2023-12-21 21:29:42,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:42,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562703697] [2023-12-21 21:29:42,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:42,019 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 21:29:42,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:42,020 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 21:29:42,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-21 21:29:42,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:42,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:42,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:42,118 INFO L134 CoverageAnalysis]: Checked inductivity of 887 backedges. 462 proven. 0 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2023-12-21 21:29:42,118 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:42,118 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:42,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562703697] [2023-12-21 21:29:42,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562703697] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:42,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:42,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:42,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157384257] [2023-12-21 21:29:42,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:42,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:42,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:42,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:42,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:42,126 INFO L87 Difference]: Start difference. First operand 4391 states and 5769 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 21:29:42,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:42,337 INFO L93 Difference]: Finished difference Result 9179 states and 12300 transitions. [2023-12-21 21:29:42,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:42,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 255 [2023-12-21 21:29:42,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:42,358 INFO L225 Difference]: With dead ends: 9179 [2023-12-21 21:29:42,358 INFO L226 Difference]: Without dead ends: 4847 [2023-12-21 21:29:42,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 253 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 21:29:42,363 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 32 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:42,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 245 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 21:29:42,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4847 states. [2023-12-21 21:29:42,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4847 to 4823. [2023-12-21 21:29:42,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4823 states, 4822 states have (on average 1.2984238905018664) internal successors, (6261), 4822 states have internal predecessors, (6261), 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 21:29:42,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4823 states to 4823 states and 6261 transitions. [2023-12-21 21:29:42,452 INFO L78 Accepts]: Start accepts. Automaton has 4823 states and 6261 transitions. Word has length 255 [2023-12-21 21:29:42,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:42,452 INFO L495 AbstractCegarLoop]: Abstraction has 4823 states and 6261 transitions. [2023-12-21 21:29:42,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 21:29:42,453 INFO L276 IsEmpty]: Start isEmpty. Operand 4823 states and 6261 transitions. [2023-12-21 21:29:42,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-12-21 21:29:42,460 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:42,461 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 14, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:42,466 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 21:29:42,664 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 21:29:42,664 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:42,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:42,665 INFO L85 PathProgramCache]: Analyzing trace with hash 59500970, now seen corresponding path program 1 times [2023-12-21 21:29:42,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:42,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313281029] [2023-12-21 21:29:42,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:42,665 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 21:29:42,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:42,666 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 21:29:42,667 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 21:29:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:42,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 21:29:42,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:42,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1310 backedges. 734 proven. 11 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2023-12-21 21:29:42,830 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 21:29:42,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1310 backedges. 734 proven. 11 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2023-12-21 21:29:42,907 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:42,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [313281029] [2023-12-21 21:29:42,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [313281029] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 21:29:42,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 21:29:42,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-21 21:29:42,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869395698] [2023-12-21 21:29:42,907 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 21:29:42,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 21:29:42,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:42,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 21:29:42,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 21:29:42,909 INFO L87 Difference]: Start difference. First operand 4823 states and 6261 transitions. Second operand has 6 states, 6 states have (on average 36.666666666666664) internal successors, (220), 6 states have internal predecessors, (220), 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 21:29:43,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:43,446 INFO L93 Difference]: Finished difference Result 10688 states and 13801 transitions. [2023-12-21 21:29:43,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 21:29:43,446 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 36.666666666666664) internal successors, (220), 6 states have internal predecessors, (220), 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 327 [2023-12-21 21:29:43,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:43,457 INFO L225 Difference]: With dead ends: 10688 [2023-12-21 21:29:43,457 INFO L226 Difference]: Without dead ends: 5924 [2023-12-21 21:29:43,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 651 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-21 21:29:43,464 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 437 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:43,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 656 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 21:29:43,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5924 states. [2023-12-21 21:29:43,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5924 to 4919. [2023-12-21 21:29:43,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4919 states, 4918 states have (on average 1.271858479056527) internal successors, (6255), 4918 states have internal predecessors, (6255), 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 21:29:43,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4919 states to 4919 states and 6255 transitions. [2023-12-21 21:29:43,550 INFO L78 Accepts]: Start accepts. Automaton has 4919 states and 6255 transitions. Word has length 327 [2023-12-21 21:29:43,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:43,551 INFO L495 AbstractCegarLoop]: Abstraction has 4919 states and 6255 transitions. [2023-12-21 21:29:43,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.666666666666664) internal successors, (220), 6 states have internal predecessors, (220), 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 21:29:43,551 INFO L276 IsEmpty]: Start isEmpty. Operand 4919 states and 6255 transitions. [2023-12-21 21:29:43,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2023-12-21 21:29:43,558 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:43,558 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 15, 14, 14, 13, 12, 10, 10, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:43,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-21 21:29:43,761 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 21:29:43,762 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:43,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:43,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1220882027, now seen corresponding path program 1 times [2023-12-21 21:29:43,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:43,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [231176388] [2023-12-21 21:29:43,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:43,763 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 21:29:43,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:43,764 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 21:29:43,768 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 21:29:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:43,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:43,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:43,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1582 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 940 trivial. 0 not checked. [2023-12-21 21:29:43,873 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:43,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:43,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [231176388] [2023-12-21 21:29:43,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [231176388] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:43,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:43,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:43,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871298209] [2023-12-21 21:29:43,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:43,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:43,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:43,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:43,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:43,875 INFO L87 Difference]: Start difference. First operand 4919 states and 6255 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 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 21:29:44,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:44,048 INFO L93 Difference]: Finished difference Result 8756 states and 11293 transitions. [2023-12-21 21:29:44,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:44,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 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 365 [2023-12-21 21:29:44,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:44,054 INFO L225 Difference]: With dead ends: 8756 [2023-12-21 21:29:44,054 INFO L226 Difference]: Without dead ends: 2344 [2023-12-21 21:29:44,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 363 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 21:29:44,058 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 33 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:44,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 250 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:44,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2344 states. [2023-12-21 21:29:44,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2344 to 2344. [2023-12-21 21:29:44,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2344 states, 2343 states have (on average 1.295774647887324) internal successors, (3036), 2343 states have internal predecessors, (3036), 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 21:29:44,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2344 states to 2344 states and 3036 transitions. [2023-12-21 21:29:44,095 INFO L78 Accepts]: Start accepts. Automaton has 2344 states and 3036 transitions. Word has length 365 [2023-12-21 21:29:44,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:44,095 INFO L495 AbstractCegarLoop]: Abstraction has 2344 states and 3036 transitions. [2023-12-21 21:29:44,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 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 21:29:44,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2344 states and 3036 transitions. [2023-12-21 21:29:44,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2023-12-21 21:29:44,100 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:44,100 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 17, 16, 16, 15, 14, 13, 13, 12, 12, 11, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:44,103 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 21:29:44,303 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 21:29:44,303 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:44,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:44,304 INFO L85 PathProgramCache]: Analyzing trace with hash -758452040, now seen corresponding path program 1 times [2023-12-21 21:29:44,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:44,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17252473] [2023-12-21 21:29:44,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:44,305 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 21:29:44,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:44,306 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 21:29:44,330 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 21:29:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:44,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:44,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:44,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2473 backedges. 1241 proven. 0 refuted. 0 times theorem prover too weak. 1232 trivial. 0 not checked. [2023-12-21 21:29:44,441 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:44,441 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:44,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17252473] [2023-12-21 21:29:44,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [17252473] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:44,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:44,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:44,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476963353] [2023-12-21 21:29:44,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:44,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:44,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:44,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:44,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:44,443 INFO L87 Difference]: Start difference. First operand 2344 states and 3036 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 21:29:44,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:44,568 INFO L93 Difference]: Finished difference Result 4763 states and 6238 transitions. [2023-12-21 21:29:44,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:44,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 473 [2023-12-21 21:29:44,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:44,575 INFO L225 Difference]: With dead ends: 4763 [2023-12-21 21:29:44,575 INFO L226 Difference]: Without dead ends: 2452 [2023-12-21 21:29:44,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 471 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 21:29:44,578 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 35 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:44,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 235 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:44,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2452 states. [2023-12-21 21:29:44,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2452 to 2446. [2023-12-21 21:29:44,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2446 states, 2445 states have (on average 1.2539877300613498) internal successors, (3066), 2445 states have internal predecessors, (3066), 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 21:29:44,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2446 states to 2446 states and 3066 transitions. [2023-12-21 21:29:44,615 INFO L78 Accepts]: Start accepts. Automaton has 2446 states and 3066 transitions. Word has length 473 [2023-12-21 21:29:44,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:44,616 INFO L495 AbstractCegarLoop]: Abstraction has 2446 states and 3066 transitions. [2023-12-21 21:29:44,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 21:29:44,616 INFO L276 IsEmpty]: Start isEmpty. Operand 2446 states and 3066 transitions. [2023-12-21 21:29:44,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2023-12-21 21:29:44,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:44,622 INFO L195 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 20, 19, 19, 18, 17, 16, 16, 15, 15, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:29:44,626 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 21:29:44,825 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 21:29:44,826 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:44,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:44,826 INFO L85 PathProgramCache]: Analyzing trace with hash -2076516529, now seen corresponding path program 1 times [2023-12-21 21:29:44,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:44,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1768745542] [2023-12-21 21:29:44,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:44,827 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 21:29:44,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:44,828 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 21:29:44,829 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 21:29:44,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:44,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 21:29:44,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:45,014 INFO L134 CoverageAnalysis]: Checked inductivity of 3732 backedges. 1941 proven. 13 refuted. 0 times theorem prover too weak. 1778 trivial. 0 not checked. [2023-12-21 21:29:45,014 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 21:29:45,112 INFO L134 CoverageAnalysis]: Checked inductivity of 3732 backedges. 1941 proven. 13 refuted. 0 times theorem prover too weak. 1778 trivial. 0 not checked. [2023-12-21 21:29:45,113 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:45,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1768745542] [2023-12-21 21:29:45,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1768745542] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 21:29:45,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 21:29:45,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-21 21:29:45,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852698069] [2023-12-21 21:29:45,113 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 21:29:45,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 21:29:45,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:45,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 21:29:45,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 21:29:45,115 INFO L87 Difference]: Start difference. First operand 2446 states and 3066 transitions. Second operand has 6 states, 6 states have (on average 43.5) internal successors, (261), 6 states have internal predecessors, (261), 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 21:29:45,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:45,330 INFO L93 Difference]: Finished difference Result 2675 states and 3359 transitions. [2023-12-21 21:29:45,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 21:29:45,331 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 43.5) internal successors, (261), 6 states have internal predecessors, (261), 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 583 [2023-12-21 21:29:45,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:45,331 INFO L225 Difference]: With dead ends: 2675 [2023-12-21 21:29:45,331 INFO L226 Difference]: Without dead ends: 0 [2023-12-21 21:29:45,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1168 GetRequests, 1162 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-12-21 21:29:45,333 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 121 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:45,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 262 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 21:29:45,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-21 21:29:45,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-21 21:29:45,334 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 21:29:45,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-21 21:29:45,334 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 583 [2023-12-21 21:29:45,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:45,335 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-21 21:29:45,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 43.5) internal successors, (261), 6 states have internal predecessors, (261), 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 21:29:45,335 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-21 21:29:45,335 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-21 21:29:45,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 21:29:45,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-21 21:29:45,541 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 21:29:45,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 21:29:46,905 INFO L899 garLoopResultBuilder]: For program point L367(lines 367 371) no Hoare annotation was computed. [2023-12-21 21:29:46,905 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 252) no Hoare annotation was computed. [2023-12-21 21:29:46,905 INFO L899 garLoopResultBuilder]: For program point L202(lines 202 551) no Hoare annotation was computed. [2023-12-21 21:29:46,905 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 562) no Hoare annotation was computed. [2023-12-21 21:29:46,905 INFO L899 garLoopResultBuilder]: For program point L235-2(lines 213 545) no Hoare annotation was computed. [2023-12-21 21:29:46,905 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 573) no Hoare annotation was computed. [2023-12-21 21:29:46,905 INFO L899 garLoopResultBuilder]: For program point L501-1(lines 501 513) no Hoare annotation was computed. [2023-12-21 21:29:46,905 INFO L899 garLoopResultBuilder]: For program point L435(lines 435 439) no Hoare annotation was computed. [2023-12-21 21:29:46,905 INFO L899 garLoopResultBuilder]: For program point L237(lines 237 242) no Hoare annotation was computed. [2023-12-21 21:29:46,906 INFO L899 garLoopResultBuilder]: For program point L205(lines 205 550) no Hoare annotation was computed. [2023-12-21 21:29:46,906 INFO L899 garLoopResultBuilder]: For program point L172(lines 172 561) no Hoare annotation was computed. [2023-12-21 21:29:46,906 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 572) no Hoare annotation was computed. [2023-12-21 21:29:46,906 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 540) no Hoare annotation was computed. [2023-12-21 21:29:46,906 INFO L899 garLoopResultBuilder]: For program point L504(lines 504 509) no Hoare annotation was computed. [2023-12-21 21:29:46,906 INFO L899 garLoopResultBuilder]: For program point L471(lines 471 482) no Hoare annotation was computed. [2023-12-21 21:29:46,906 INFO L899 garLoopResultBuilder]: For program point L471-1(lines 471 482) no Hoare annotation was computed. [2023-12-21 21:29:46,906 INFO L899 garLoopResultBuilder]: For program point L273(lines 273 277) no Hoare annotation was computed. [2023-12-21 21:29:46,912 INFO L899 garLoopResultBuilder]: For program point L273-2(lines 213 545) no Hoare annotation was computed. [2023-12-21 21:29:46,913 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4433#1(lines 151 568) no Hoare annotation was computed. [2023-12-21 21:29:46,913 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 410) no Hoare annotation was computed. [2023-12-21 21:29:46,913 INFO L899 garLoopResultBuilder]: For program point L340(lines 340 344) no Hoare annotation was computed. [2023-12-21 21:29:46,913 INFO L899 garLoopResultBuilder]: For program point L340-2(lines 213 545) no Hoare annotation was computed. [2023-12-21 21:29:46,914 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 549) no Hoare annotation was computed. [2023-12-21 21:29:46,914 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 560) no Hoare annotation was computed. [2023-12-21 21:29:46,914 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 571) no Hoare annotation was computed. [2023-12-21 21:29:46,918 INFO L895 garLoopResultBuilder]: At program point L109-1(lines 109 612) the Hoare annotation is: (let ((.cse1 (= (_ bv0 32) |ULTIMATE.start_ssl3_connect_~s__hit~0#1|))) (let ((.cse0 (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4416 32))) (.cse12 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| (_ bv1 32))) (.cse13 (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4384 32))) (.cse14 (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4496 32))) (.cse15 (= (_ bv4432 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse7 (= (_ bv4352 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse10 (= (_ bv4480 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse23 (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4368 32))) (.cse9 (= (_ bv4512 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse5 (= (_ bv4 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse11 (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4560 32))) (.cse16 (= (_ bv4528 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse19 (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4448 32))) (.cse6 (= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| (_ bv4560 32))) (.cse20 (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv3 32))) (.cse2 (= (_ bv48 32) |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|)) (.cse3 (= (_ bv2 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse4 (= (_ bv4352 32) |ULTIMATE.start_ssl3_connect_~ag_X~0#1|)) (.cse8 (= (_ bv4464 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse21 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| (_ bv0 32))) (.cse17 (not .cse1)) (.cse18 (= (_ bv208 32) |ULTIMATE.start_ssl3_connect_~ag_Y~0#1|)) (.cse22 (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv12292 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse1 .cse2 .cse4 .cse7) (and .cse5 .cse1 .cse2 .cse4 .cse8) (and .cse5 .cse1 .cse2 .cse9 .cse4) (and .cse1 .cse10 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse1 .cse11 .cse2 .cse4) (and .cse12 .cse1 .cse2 .cse13 .cse4) (and .cse1 .cse14 .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse4 .cse15) (and .cse5 .cse1 .cse16 .cse2 .cse4) (and .cse17 .cse18 .cse9 .cse3) (and .cse5 .cse19 .cse1 .cse2 .cse4) (and .cse17 .cse18 .cse20 (not (= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| (_ bv4384 32)))) (and .cse0 .cse1 (= (_ bv3 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse2 .cse4) (and .cse17 .cse18 .cse16 .cse3) (and .cse17 .cse18 (= (_ bv3 32) |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|) .cse3 .cse7) (and .cse21 .cse1 .cse2 .cse22) (and .cse17 .cse18 (exists ((|v_ULTIMATE.start_ssl3_connect_~s__state~0#1_115| (_ BitVec 32))) (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (bvor |v_ULTIMATE.start_ssl3_connect_~s__state~0#1_115| (_ bv208 32)))) .cse3) (and .cse17 .cse12 .cse18 .cse13) (and .cse21 .cse17 .cse18 .cse23) (and .cse5 .cse1 .cse14 .cse2 .cse4) (and .cse1 .cse2 .cse3 .cse4 .cse15) (and .cse6 .cse1 .cse2 .cse3 .cse4 .cse7) (and .cse5 .cse1 .cse10 .cse2 .cse4) (and .cse21 .cse23 .cse1 .cse2) (and .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4400 32))) (and .cse1 .cse2 .cse9 .cse3 .cse4) (and .cse5 .cse6 .cse1 .cse20 .cse2 .cse4) (and .cse6 .cse1 .cse11 .cse2 .cse3 .cse4) (and .cse1 .cse16 .cse2 .cse3 .cse4) (and .cse19 .cse1 .cse2 .cse3 .cse4) (and .cse6 .cse1 .cse20 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse4 .cse8) (and .cse21 .cse17 .cse18 .cse22)))) [2023-12-21 21:29:46,918 INFO L899 garLoopResultBuilder]: For program point L473(lines 473 479) no Hoare annotation was computed. [2023-12-21 21:29:46,918 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4417#1(lines 145 570) no Hoare annotation was computed. [2023-12-21 21:29:46,918 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 248) no Hoare annotation was computed. [2023-12-21 21:29:46,918 INFO L899 garLoopResultBuilder]: For program point L310(lines 310 314) no Hoare annotation was computed. [2023-12-21 21:29:46,918 INFO L899 garLoopResultBuilder]: For program point L310-2(lines 310 314) no Hoare annotation was computed. [2023-12-21 21:29:46,919 INFO L899 garLoopResultBuilder]: For program point L178(lines 178 559) no Hoare annotation was computed. [2023-12-21 21:29:46,919 INFO L899 garLoopResultBuilder]: For program point L145(lines 145 570) no Hoare annotation was computed. [2023-12-21 21:29:46,919 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 581) no Hoare annotation was computed. [2023-12-21 21:29:46,919 INFO L899 garLoopResultBuilder]: For program point L443(lines 443 447) no Hoare annotation was computed. [2023-12-21 21:29:46,919 INFO L899 garLoopResultBuilder]: For program point L443-2(lines 213 545) no Hoare annotation was computed. [2023-12-21 21:29:46,919 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4481#1(lines 175 560) no Hoare annotation was computed. [2023-12-21 21:29:46,919 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 382) no Hoare annotation was computed. [2023-12-21 21:29:46,919 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4513#1(lines 187 556) no Hoare annotation was computed. [2023-12-21 21:29:46,920 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 417) no Hoare annotation was computed. [2023-12-21 21:29:46,920 INFO L899 garLoopResultBuilder]: For program point L412-2(lines 412 417) no Hoare annotation was computed. [2023-12-21 21:29:46,920 INFO L899 garLoopResultBuilder]: For program point L181(lines 181 558) no Hoare annotation was computed. [2023-12-21 21:29:46,920 INFO L899 garLoopResultBuilder]: For program point L148(lines 148 569) no Hoare annotation was computed. [2023-12-21 21:29:46,920 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 580) no Hoare annotation was computed. [2023-12-21 21:29:46,920 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_ERROR#1(lines 76 630) no Hoare annotation was computed. [2023-12-21 21:29:46,920 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 92) no Hoare annotation was computed. [2023-12-21 21:29:46,920 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4449#1(lines 157 566) no Hoare annotation was computed. [2023-12-21 21:29:46,920 INFO L899 garLoopResultBuilder]: For program point L613(lines 76 630) no Hoare annotation was computed. [2023-12-21 21:29:46,920 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 557) no Hoare annotation was computed. [2023-12-21 21:29:46,920 INFO L899 garLoopResultBuilder]: For program point L151(lines 151 568) no Hoare annotation was computed. [2023-12-21 21:29:46,920 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 579) no Hoare annotation was computed. [2023-12-21 21:29:46,920 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4497#1(lines 181 558) no Hoare annotation was computed. [2023-12-21 21:29:46,920 INFO L899 garLoopResultBuilder]: For program point L383(lines 383 387) no Hoare annotation was computed. [2023-12-21 21:29:46,920 INFO L899 garLoopResultBuilder]: For program point L383-2(lines 383 387) no Hoare annotation was computed. [2023-12-21 21:29:46,920 INFO L899 garLoopResultBuilder]: For program point L218(lines 115 580) no Hoare annotation was computed. [2023-12-21 21:29:46,920 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4561#1(lines 199 552) no Hoare annotation was computed. [2023-12-21 21:29:46,921 INFO L899 garLoopResultBuilder]: For program point L582(lines 582 610) no Hoare annotation was computed. [2023-12-21 21:29:46,921 INFO L899 garLoopResultBuilder]: For program point L87(lines 87 91) no Hoare annotation was computed. [2023-12-21 21:29:46,921 INFO L899 garLoopResultBuilder]: For program point L87-2(lines 84 92) no Hoare annotation was computed. [2023-12-21 21:29:46,921 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 607) no Hoare annotation was computed. [2023-12-21 21:29:46,921 INFO L899 garLoopResultBuilder]: For program point L517-1(lines 213 545) no Hoare annotation was computed. [2023-12-21 21:29:46,921 INFO L899 garLoopResultBuilder]: For program point L352(lines 352 357) no Hoare annotation was computed. [2023-12-21 21:29:46,921 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 290) no Hoare annotation was computed. [2023-12-21 21:29:46,921 INFO L899 garLoopResultBuilder]: For program point L319-1(lines 319 333) no Hoare annotation was computed. [2023-12-21 21:29:46,921 INFO L899 garLoopResultBuilder]: For program point L187(lines 187 556) no Hoare annotation was computed. [2023-12-21 21:29:46,921 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 567) no Hoare annotation was computed. [2023-12-21 21:29:46,921 INFO L899 garLoopResultBuilder]: For program point L121(lines 121 578) no Hoare annotation was computed. [2023-12-21 21:29:46,921 INFO L899 garLoopResultBuilder]: For program point L617(lines 617 621) no Hoare annotation was computed. [2023-12-21 21:29:46,922 INFO L899 garLoopResultBuilder]: For program point L584(lines 584 593) no Hoare annotation was computed. [2023-12-21 21:29:46,922 INFO L899 garLoopResultBuilder]: For program point L617-2(lines 617 621) no Hoare annotation was computed. [2023-12-21 21:29:46,922 INFO L899 garLoopResultBuilder]: For program point L584-2(lines 583 605) no Hoare annotation was computed. [2023-12-21 21:29:46,922 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4529#1(lines 193 554) no Hoare annotation was computed. [2023-12-21 21:29:46,922 INFO L899 garLoopResultBuilder]: For program point $Ultimate##180(lines 501 513) no Hoare annotation was computed. [2023-12-21 21:29:46,922 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 590) no Hoare annotation was computed. [2023-12-21 21:29:46,922 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 459) no Hoare annotation was computed. [2023-12-21 21:29:46,922 INFO L899 garLoopResultBuilder]: For program point $Ultimate##185(lines 517 521) no Hoare annotation was computed. [2023-12-21 21:29:46,922 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-21 21:29:46,923 INFO L899 garLoopResultBuilder]: For program point L223(lines 223 227) no Hoare annotation was computed. [2023-12-21 21:29:46,923 INFO L899 garLoopResultBuilder]: For program point L190(lines 190 555) no Hoare annotation was computed. [2023-12-21 21:29:46,923 INFO L899 garLoopResultBuilder]: For program point L157(lines 157 566) no Hoare annotation was computed. [2023-12-21 21:29:46,923 INFO L899 garLoopResultBuilder]: For program point L223-2(lines 213 545) no Hoare annotation was computed. [2023-12-21 21:29:46,923 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 577) no Hoare annotation was computed. [2023-12-21 21:29:46,923 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4385#1(lines 133 574) no Hoare annotation was computed. [2023-12-21 21:29:46,923 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 492) no Hoare annotation was computed. [2023-12-21 21:29:46,923 INFO L899 garLoopResultBuilder]: For program point $Ultimate##197(lines 582 610) no Hoare annotation was computed. [2023-12-21 21:29:46,923 INFO L899 garLoopResultBuilder]: For program point L323(lines 323 327) no Hoare annotation was computed. [2023-12-21 21:29:46,923 INFO L899 garLoopResultBuilder]: For program point L323-2(lines 321 333) no Hoare annotation was computed. [2023-12-21 21:29:46,923 INFO L899 garLoopResultBuilder]: For program point L522-1(lines 522 526) no Hoare annotation was computed. [2023-12-21 21:29:46,924 INFO L899 garLoopResultBuilder]: For program point L423(lines 423 427) no Hoare annotation was computed. [2023-12-21 21:29:46,924 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4369#1(lines 127 576) no Hoare annotation was computed. [2023-12-21 21:29:46,924 INFO L899 garLoopResultBuilder]: For program point L259(lines 259 264) no Hoare annotation was computed. [2023-12-21 21:29:46,924 INFO L899 garLoopResultBuilder]: For program point L193(lines 193 554) no Hoare annotation was computed. [2023-12-21 21:29:46,924 INFO L899 garLoopResultBuilder]: For program point L160(lines 160 565) no Hoare annotation was computed. [2023-12-21 21:29:46,924 INFO L899 garLoopResultBuilder]: For program point L127(lines 127 576) no Hoare annotation was computed. [2023-12-21 21:29:46,924 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 102) no Hoare annotation was computed. [2023-12-21 21:29:46,924 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 76 630) no Hoare annotation was computed. [2023-12-21 21:29:46,924 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4467#1(lines 163 564) no Hoare annotation was computed. [2023-12-21 21:29:46,924 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 99) no Hoare annotation was computed. [2023-12-21 21:29:46,924 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-21 21:29:46,924 INFO L899 garLoopResultBuilder]: For program point L493(lines 493 497) no Hoare annotation was computed. [2023-12-21 21:29:46,924 INFO L899 garLoopResultBuilder]: For program point L493-2(lines 493 497) no Hoare annotation was computed. [2023-12-21 21:29:46,924 INFO L899 garLoopResultBuilder]: For program point L295(lines 295 303) no Hoare annotation was computed. [2023-12-21 21:29:46,924 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 553) no Hoare annotation was computed. [2023-12-21 21:29:46,924 INFO L899 garLoopResultBuilder]: For program point L163(lines 163 564) no Hoare annotation was computed. [2023-12-21 21:29:46,924 INFO L899 garLoopResultBuilder]: For program point L130(lines 130 575) no Hoare annotation was computed. [2023-12-21 21:29:46,925 INFO L899 garLoopResultBuilder]: For program point L395(lines 395 399) no Hoare annotation was computed. [2023-12-21 21:29:46,925 INFO L899 garLoopResultBuilder]: For program point L362(lines 362 366) no Hoare annotation was computed. [2023-12-21 21:29:46,925 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 624) no Hoare annotation was computed. [2023-12-21 21:29:46,925 INFO L899 garLoopResultBuilder]: For program point L628(lines 76 630) no Hoare annotation was computed. [2023-12-21 21:29:46,925 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 601) no Hoare annotation was computed. [2023-12-21 21:29:46,925 INFO L899 garLoopResultBuilder]: For program point L529(lines 529 533) no Hoare annotation was computed. [2023-12-21 21:29:46,925 INFO L899 garLoopResultBuilder]: For program point L529-2(lines 529 533) no Hoare annotation was computed. [2023-12-21 21:29:46,925 INFO L899 garLoopResultBuilder]: For program point L298(lines 298 302) no Hoare annotation was computed. [2023-12-21 21:29:46,925 INFO L899 garLoopResultBuilder]: For program point L298-2(lines 213 545) no Hoare annotation was computed. [2023-12-21 21:29:46,925 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 552) no Hoare annotation was computed. [2023-12-21 21:29:46,925 INFO L899 garLoopResultBuilder]: For program point L166(lines 166 563) no Hoare annotation was computed. [2023-12-21 21:29:46,925 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 574) no Hoare annotation was computed. [2023-12-21 21:29:46,925 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 468) no Hoare annotation was computed. [2023-12-21 21:29:46,925 INFO L899 garLoopResultBuilder]: For program point $Ultimate##125(lines 319 333) no Hoare annotation was computed. [2023-12-21 21:29:46,928 INFO L445 BasicCegarLoop]: Path program 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] [2023-12-21 21:29:46,930 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 21:29:46,947 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_ssl3_connect_~s__state~0#1_115 : bv32 :: ~s__state~0 == ~bvor~32(v_ULTIMATE.start_ssl3_connect_~s__state~0#1_115, 208bv32)) could not be translated [2023-12-21 21:29:46,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 09:29:46 BoogieIcfgContainer [2023-12-21 21:29:46,951 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 21:29:46,951 INFO L158 Benchmark]: Toolchain (without parser) took 16150.58ms. Allocated memory was 192.9MB in the beginning and 383.8MB in the end (delta: 190.8MB). Free memory was 149.4MB in the beginning and 249.3MB in the end (delta: -99.9MB). Peak memory consumption was 234.1MB. Max. memory is 8.0GB. [2023-12-21 21:29:46,951 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 192.9MB. Free memory is still 149.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 21:29:46,952 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.87ms. Allocated memory is still 192.9MB. Free memory was 149.1MB in the beginning and 133.0MB in the end (delta: 16.1MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-21 21:29:46,952 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.04ms. Allocated memory is still 192.9MB. Free memory was 133.0MB in the beginning and 130.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 21:29:46,952 INFO L158 Benchmark]: Boogie Preprocessor took 62.26ms. Allocated memory is still 192.9MB. Free memory was 130.6MB in the beginning and 127.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-21 21:29:46,952 INFO L158 Benchmark]: RCFGBuilder took 683.25ms. Allocated memory is still 192.9MB. Free memory was 127.4MB in the beginning and 157.4MB in the end (delta: -30.0MB). Peak memory consumption was 34.5MB. Max. memory is 8.0GB. [2023-12-21 21:29:46,952 INFO L158 Benchmark]: TraceAbstraction took 15033.69ms. Allocated memory was 192.9MB in the beginning and 383.8MB in the end (delta: 190.8MB). Free memory was 156.9MB in the beginning and 249.3MB in the end (delta: -92.5MB). Peak memory consumption was 240.4MB. Max. memory is 8.0GB. [2023-12-21 21:29:46,953 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 192.9MB. Free memory is still 149.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 301.87ms. Allocated memory is still 192.9MB. Free memory was 149.1MB in the beginning and 133.0MB in the end (delta: 16.1MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.04ms. Allocated memory is still 192.9MB. Free memory was 133.0MB in the beginning and 130.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 62.26ms. Allocated memory is still 192.9MB. Free memory was 130.6MB in the beginning and 127.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 683.25ms. Allocated memory is still 192.9MB. Free memory was 127.4MB in the beginning and 157.4MB in the end (delta: -30.0MB). Peak memory consumption was 34.5MB. Max. memory is 8.0GB. * TraceAbstraction took 15033.69ms. Allocated memory was 192.9MB in the beginning and 383.8MB in the end (delta: 190.8MB). Free memory was 156.9MB in the beginning and 249.3MB in the end (delta: -92.5MB). Peak memory consumption was 240.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_ssl3_connect_~s__state~0#1_115 : bv32 :: ~s__state~0 == ~bvor~32(v_ULTIMATE.start_ssl3_connect_~s__state~0#1_115, 208bv32)) could not be translated * 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: 624]: 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, 119 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.0s, OverallIterations: 25, TraceHistogramMax: 21, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2502 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2502 mSDsluCounter, 8605 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3942 mSDsCounter, 506 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3212 IncrementalHoareTripleChecker+Invalid, 3718 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 506 mSolverCounterUnsat, 4663 mSDtfsCounter, 3212 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5276 GetRequests, 5224 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4919occurred in iteration=22, InterpolantAutomatonStates: 94, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 25 MinimizatonAttempts, 1201 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 53 NumberOfFragments, 548 HoareAnnotationTreeSize, 1 FormulaSimplifications, 575 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 1 FormulaSimplificationsInter, 926 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 4254 NumberOfCodeBlocks, 4254 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 5259 ConstructedInterpolants, 54 QuantifiedInterpolants, 7308 SizeOfPredicates, 8 NumberOfNonLiveVariables, 5329 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 29 InterpolantComputations, 21 PerfectInterpolantSequences, 19948/20095 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: 109]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((s__state == 4416) && (0 == s__hit)) && (48 == ag_Z)) && (2 == blastFlag)) && (4352 == ag_X)) || ((((((4 == blastFlag) && (s__s3__tmp__next_state___0 == 4560)) && (0 == s__hit)) && (48 == ag_Z)) && (4352 == ag_X)) && (4352 == s__state))) || (((((4 == blastFlag) && (0 == s__hit)) && (48 == ag_Z)) && (4352 == ag_X)) && (4464 == s__state))) || (((((4 == blastFlag) && (0 == s__hit)) && (48 == ag_Z)) && (4512 == s__state)) && (4352 == ag_X))) || (((((0 == s__hit) && (4480 == s__state)) && (48 == ag_Z)) && (2 == blastFlag)) && (4352 == ag_X))) || ((((((4 == blastFlag) && (s__s3__tmp__next_state___0 == 4560)) && (0 == s__hit)) && (s__state == 4560)) && (48 == ag_Z)) && (4352 == ag_X))) || (((((blastFlag == 1) && (0 == s__hit)) && (48 == ag_Z)) && (s__state == 4384)) && (4352 == ag_X))) || (((((0 == s__hit) && (s__state == 4496)) && (48 == ag_Z)) && (2 == blastFlag)) && (4352 == ag_X))) || (((((4 == blastFlag) && (0 == s__hit)) && (48 == ag_Z)) && (4352 == ag_X)) && (4432 == s__state))) || (((((4 == blastFlag) && (0 == s__hit)) && (4528 == s__state)) && (48 == ag_Z)) && (4352 == ag_X))) || (((!((0 == s__hit)) && (208 == ag_Y)) && (4512 == s__state)) && (2 == blastFlag))) || (((((4 == blastFlag) && (s__state == 4448)) && (0 == s__hit)) && (48 == ag_Z)) && (4352 == ag_X))) || (((!((0 == s__hit)) && (208 == ag_Y)) && (s__state == 3)) && !((s__s3__tmp__next_state___0 == 4384)))) || (((((s__state == 4416) && (0 == s__hit)) && (3 == blastFlag)) && (48 == ag_Z)) && (4352 == ag_X))) || (((!((0 == s__hit)) && (208 == ag_Y)) && (4528 == s__state)) && (2 == blastFlag))) || ((((!((0 == s__hit)) && (208 == ag_Y)) && (3 == s__s3__tmp__next_state___0)) && (2 == blastFlag)) && (4352 == s__state))) || ((((blastFlag == 0) && (0 == s__hit)) && (48 == ag_Z)) && (s__state == 12292))) || ((!((0 == s__hit)) && (208 == ag_Y)) && (2 == blastFlag))) || (((!((0 == s__hit)) && (blastFlag == 1)) && (208 == ag_Y)) && (s__state == 4384))) || ((((blastFlag == 0) && !((0 == s__hit))) && (208 == ag_Y)) && (s__state == 4368))) || (((((4 == blastFlag) && (0 == s__hit)) && (s__state == 4496)) && (48 == ag_Z)) && (4352 == ag_X))) || (((((0 == s__hit) && (48 == ag_Z)) && (2 == blastFlag)) && (4352 == ag_X)) && (4432 == s__state))) || ((((((s__s3__tmp__next_state___0 == 4560) && (0 == s__hit)) && (48 == ag_Z)) && (2 == blastFlag)) && (4352 == ag_X)) && (4352 == s__state))) || (((((4 == blastFlag) && (0 == s__hit)) && (4480 == s__state)) && (48 == ag_Z)) && (4352 == ag_X))) || ((((blastFlag == 0) && (s__state == 4368)) && (0 == s__hit)) && (48 == ag_Z))) || (((((0 == s__hit) && (48 == ag_Z)) && (2 == blastFlag)) && (4352 == ag_X)) && (s__state == 4400))) || (((((0 == s__hit) && (48 == ag_Z)) && (4512 == s__state)) && (2 == blastFlag)) && (4352 == ag_X))) || ((((((4 == blastFlag) && (s__s3__tmp__next_state___0 == 4560)) && (0 == s__hit)) && (s__state == 3)) && (48 == ag_Z)) && (4352 == ag_X))) || ((((((s__s3__tmp__next_state___0 == 4560) && (0 == s__hit)) && (s__state == 4560)) && (48 == ag_Z)) && (2 == blastFlag)) && (4352 == ag_X))) || (((((0 == s__hit) && (4528 == s__state)) && (48 == ag_Z)) && (2 == blastFlag)) && (4352 == ag_X))) || (((((s__state == 4448) && (0 == s__hit)) && (48 == ag_Z)) && (2 == blastFlag)) && (4352 == ag_X))) || ((((((s__s3__tmp__next_state___0 == 4560) && (0 == s__hit)) && (s__state == 3)) && (48 == ag_Z)) && (2 == blastFlag)) && (4352 == ag_X))) || (((((0 == s__hit) && (48 == ag_Z)) && (2 == blastFlag)) && (4352 == ag_X)) && (4464 == s__state))) || ((((blastFlag == 0) && !((0 == s__hit))) && (208 == ag_Y)) && (s__state == 12292))) RESULT: Ultimate proved your program to be correct! [2023-12-21 21:29:46,973 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...