/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 14:37:53,666 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 14:37:53,726 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 14:37:53,730 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 14:37:53,731 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 14:37:53,747 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 14:37:53,748 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 14:37:53,748 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 14:37:53,748 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 14:37:53,749 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 14:37:53,749 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 14:37:53,749 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 14:37:53,749 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 14:37:53,750 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 14:37:53,750 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 14:37:53,750 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 14:37:53,750 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 14:37:53,751 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 14:37:53,751 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 14:37:53,751 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 14:37:53,751 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 14:37:53,754 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 14:37:53,755 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 14:37:53,755 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 14:37:53,758 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 14:37:53,758 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 14:37:53,758 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 14:37:53,758 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 14:37:53,758 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 14:37:53,759 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 14:37:53,759 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 14:37:53,760 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 14:37:53,760 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 14:37:53,760 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 14:37:53,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 14:37:53,760 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 14:37:53,760 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 14:37:53,760 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 14:37:53,760 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 14:37:53,760 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 14:37:53,761 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 14:37:53,761 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 14:37:53,761 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 14:37:53,761 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 14:37:53,761 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 14:37:53,761 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 14:37:53,762 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 14:37:53,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 14:37:53,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 14:37:53,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 14:37:53,988 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 14:37:53,988 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 14:37:53,990 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label41.c [2023-12-22 14:37:55,123 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 14:37:55,343 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 14:37:55,343 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label41.c [2023-12-22 14:37:55,365 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b44140cef/cfd08e59e1c54691a1121c9c308b0ecd/FLAG3a11ba4b7 [2023-12-22 14:37:55,380 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b44140cef/cfd08e59e1c54691a1121c9c308b0ecd [2023-12-22 14:37:55,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 14:37:55,383 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 14:37:55,384 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 14:37:55,384 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 14:37:55,387 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 14:37:55,388 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:37:55" (1/1) ... [2023-12-22 14:37:55,388 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dbb83e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:55, skipping insertion in model container [2023-12-22 14:37:55,389 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:37:55" (1/1) ... [2023-12-22 14:37:55,453 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 14:37:55,626 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label41.c[2609,2622] [2023-12-22 14:37:55,951 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 14:37:55,961 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 14:37:55,979 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label41.c[2609,2622] [2023-12-22 14:37:56,134 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 14:37:56,147 INFO L206 MainTranslator]: Completed translation [2023-12-22 14:37:56,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:56 WrapperNode [2023-12-22 14:37:56,150 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 14:37:56,151 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 14:37:56,151 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 14:37:56,151 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 14:37:56,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:56" (1/1) ... [2023-12-22 14:37:56,181 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:56" (1/1) ... [2023-12-22 14:37:56,268 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1767 [2023-12-22 14:37:56,269 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 14:37:56,269 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 14:37:56,269 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 14:37:56,269 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 14:37:56,277 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:56" (1/1) ... [2023-12-22 14:37:56,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:56" (1/1) ... [2023-12-22 14:37:56,290 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:56" (1/1) ... [2023-12-22 14:37:56,311 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-22 14:37:56,312 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:56" (1/1) ... [2023-12-22 14:37:56,312 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:56" (1/1) ... [2023-12-22 14:37:56,332 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:56" (1/1) ... [2023-12-22 14:37:56,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:56" (1/1) ... [2023-12-22 14:37:56,348 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:56" (1/1) ... [2023-12-22 14:37:56,355 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:56" (1/1) ... [2023-12-22 14:37:56,364 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 14:37:56,365 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 14:37:56,365 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 14:37:56,365 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 14:37:56,366 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:56" (1/1) ... [2023-12-22 14:37:56,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 14:37:56,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 14:37:56,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-22 14:37:56,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-22 14:37:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 14:37:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 14:37:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 14:37:56,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 14:37:56,490 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 14:37:56,492 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 14:38:03,040 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 14:38:03,070 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 14:38:03,071 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 14:38:03,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:38:03 BoogieIcfgContainer [2023-12-22 14:38:03,071 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 14:38:03,073 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 14:38:03,073 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 14:38:03,075 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 14:38:03,075 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:37:55" (1/3) ... [2023-12-22 14:38:03,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e11d668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:38:03, skipping insertion in model container [2023-12-22 14:38:03,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:56" (2/3) ... [2023-12-22 14:38:03,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e11d668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:38:03, skipping insertion in model container [2023-12-22 14:38:03,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:38:03" (3/3) ... [2023-12-22 14:38:03,077 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label41.c [2023-12-22 14:38:03,089 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 14:38:03,089 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 14:38:03,125 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 14:38:03,130 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;@6b46df3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 14:38:03,130 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 14:38:03,134 INFO L276 IsEmpty]: Start isEmpty. Operand has 334 states, 332 states have (on average 1.9909638554216869) internal successors, (661), 333 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:38:03,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-22 14:38:03,139 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:38:03,140 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] [2023-12-22 14:38:03,140 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:38:03,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:38:03,146 INFO L85 PathProgramCache]: Analyzing trace with hash -2089943998, now seen corresponding path program 1 times [2023-12-22 14:38:03,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:38:03,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [938533962] [2023-12-22 14:38:03,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:38:03,157 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:38:03,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:38:03,182 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 14:38:03,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-22 14:38:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:38:03,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 14:38:03,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:38:03,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 14:38:03,270 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 14:38:03,271 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:38:03,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [938533962] [2023-12-22 14:38:03,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [938533962] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 14:38:03,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 14:38:03,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 14:38:03,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212178316] [2023-12-22 14:38:03,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 14:38:03,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 14:38:03,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:38:03,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 14:38:03,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 14:38:03,305 INFO L87 Difference]: Start difference. First operand has 334 states, 332 states have (on average 1.9909638554216869) internal successors, (661), 333 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:38:03,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:38:03,343 INFO L93 Difference]: Finished difference Result 667 states and 1321 transitions. [2023-12-22 14:38:03,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 14:38:03,345 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2023-12-22 14:38:03,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:38:03,360 INFO L225 Difference]: With dead ends: 667 [2023-12-22 14:38:03,360 INFO L226 Difference]: Without dead ends: 332 [2023-12-22 14:38:03,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 14:38:03,365 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 14:38:03,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 596 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 14:38:03,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2023-12-22 14:38:03,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2023-12-22 14:38:03,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 331 states have (on average 1.8006042296072509) internal successors, (596), 331 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:38:03,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 596 transitions. [2023-12-22 14:38:03,405 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 596 transitions. Word has length 22 [2023-12-22 14:38:03,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:38:03,405 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 596 transitions. [2023-12-22 14:38:03,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:38:03,406 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 596 transitions. [2023-12-22 14:38:03,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-22 14:38:03,406 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:38:03,406 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] [2023-12-22 14:38:03,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-22 14:38:03,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:38:03,609 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:38:03,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:38:03,610 INFO L85 PathProgramCache]: Analyzing trace with hash 590653196, now seen corresponding path program 1 times [2023-12-22 14:38:03,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:38:03,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2027151045] [2023-12-22 14:38:03,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:38:03,611 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:38:03,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:38:03,612 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 14:38:03,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-22 14:38:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:38:03,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 14:38:03,636 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:38:03,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 14:38:03,676 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 14:38:03,676 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:38:03,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2027151045] [2023-12-22 14:38:03,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2027151045] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 14:38:03,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 14:38:03,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 14:38:03,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224133080] [2023-12-22 14:38:03,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 14:38:03,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 14:38:03,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:38:03,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 14:38:03,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 14:38:03,678 INFO L87 Difference]: Start difference. First operand 332 states and 596 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:38:13,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:38:13,532 INFO L93 Difference]: Finished difference Result 992 states and 1785 transitions. [2023-12-22 14:38:13,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 14:38:13,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2023-12-22 14:38:13,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:38:13,537 INFO L225 Difference]: With dead ends: 992 [2023-12-22 14:38:13,537 INFO L226 Difference]: Without dead ends: 661 [2023-12-22 14:38:13,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 14:38:13,539 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 318 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-12-22 14:38:13,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 223 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2023-12-22 14:38:13,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2023-12-22 14:38:13,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 661. [2023-12-22 14:38:13,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 660 states have (on average 1.4833333333333334) internal successors, (979), 660 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:38:13,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 979 transitions. [2023-12-22 14:38:13,565 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 979 transitions. Word has length 22 [2023-12-22 14:38:13,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:38:13,565 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 979 transitions. [2023-12-22 14:38:13,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:38:13,565 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 979 transitions. [2023-12-22 14:38:13,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-22 14:38:13,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:38:13,567 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 14:38:13,571 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 [2023-12-22 14:38:13,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:38:13,770 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:38:13,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:38:13,770 INFO L85 PathProgramCache]: Analyzing trace with hash -96834725, now seen corresponding path program 1 times [2023-12-22 14:38:13,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:38:13,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359458563] [2023-12-22 14:38:13,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:38:13,772 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:38:13,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:38:13,773 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 14:38:13,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-22 14:38:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:38:13,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 14:38:13,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:38:14,012 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 14:38:14,013 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 14:38:14,013 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:38:14,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359458563] [2023-12-22 14:38:14,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359458563] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 14:38:14,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 14:38:14,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 14:38:14,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695371050] [2023-12-22 14:38:14,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 14:38:14,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 14:38:14,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:38:14,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 14:38:14,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 14:38:14,024 INFO L87 Difference]: Start difference. First operand 661 states and 979 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:38:20,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:38:20,676 INFO L93 Difference]: Finished difference Result 1650 states and 2340 transitions. [2023-12-22 14:38:20,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 14:38:20,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2023-12-22 14:38:20,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:38:20,680 INFO L225 Difference]: With dead ends: 1650 [2023-12-22 14:38:20,680 INFO L226 Difference]: Without dead ends: 990 [2023-12-22 14:38:20,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 14:38:20,682 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 260 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-12-22 14:38:20,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 247 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 946 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-12-22 14:38:20,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2023-12-22 14:38:20,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 990. [2023-12-22 14:38:20,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 989 states have (on average 1.352881698685541) internal successors, (1338), 989 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:38:20,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1338 transitions. [2023-12-22 14:38:20,723 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1338 transitions. Word has length 94 [2023-12-22 14:38:20,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:38:20,723 INFO L495 AbstractCegarLoop]: Abstraction has 990 states and 1338 transitions. [2023-12-22 14:38:20,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:38:20,723 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1338 transitions. [2023-12-22 14:38:20,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-22 14:38:20,725 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:38:20,725 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 14:38:20,732 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 [2023-12-22 14:38:20,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:38:20,930 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:38:20,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:38:20,931 INFO L85 PathProgramCache]: Analyzing trace with hash -21784216, now seen corresponding path program 1 times [2023-12-22 14:38:20,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:38:20,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954807966] [2023-12-22 14:38:20,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:38:20,932 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:38:20,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:38:20,933 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 14:38:20,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 14:38:21,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:38:21,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 14:38:21,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:38:21,077 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 14:38:21,078 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 14:38:21,078 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:38:21,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954807966] [2023-12-22 14:38:21,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1954807966] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 14:38:21,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 14:38:21,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 14:38:21,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983609787] [2023-12-22 14:38:21,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 14:38:21,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 14:38:21,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:38:21,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 14:38:21,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 14:38:21,084 INFO L87 Difference]: Start difference. First operand 990 states and 1338 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:38:30,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:38:30,912 INFO L93 Difference]: Finished difference Result 1979 states and 2910 transitions. [2023-12-22 14:38:30,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 14:38:30,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2023-12-22 14:38:30,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:38:30,917 INFO L225 Difference]: With dead ends: 1979 [2023-12-22 14:38:30,917 INFO L226 Difference]: Without dead ends: 1319 [2023-12-22 14:38:30,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 14:38:30,919 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 361 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2023-12-22 14:38:30,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 536 Invalid, 1185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [388 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2023-12-22 14:38:30,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2023-12-22 14:38:30,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1319. [2023-12-22 14:38:30,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1318 states have (on average 1.3148710166919575) internal successors, (1733), 1318 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:38:30,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1733 transitions. [2023-12-22 14:38:30,939 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1733 transitions. Word has length 109 [2023-12-22 14:38:30,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:38:30,940 INFO L495 AbstractCegarLoop]: Abstraction has 1319 states and 1733 transitions. [2023-12-22 14:38:30,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:38:30,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1733 transitions. [2023-12-22 14:38:30,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-22 14:38:30,941 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:38:30,942 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 14:38:30,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-22 14:38:31,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:38:31,145 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:38:31,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:38:31,146 INFO L85 PathProgramCache]: Analyzing trace with hash -43217753, now seen corresponding path program 1 times [2023-12-22 14:38:31,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:38:31,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [380841358] [2023-12-22 14:38:31,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:38:31,147 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:38:31,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:38:31,148 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 14:38:31,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-22 14:38:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:38:31,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 14:38:31,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:38:31,435 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 14:38:31,435 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 14:38:31,435 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:38:31,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [380841358] [2023-12-22 14:38:31,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [380841358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 14:38:31,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 14:38:31,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 14:38:31,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707742293] [2023-12-22 14:38:31,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 14:38:31,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 14:38:31,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:38:31,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 14:38:31,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 14:38:31,437 INFO L87 Difference]: Start difference. First operand 1319 states and 1733 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:38:41,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:38:41,755 INFO L93 Difference]: Finished difference Result 3624 states and 4837 transitions. [2023-12-22 14:38:41,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 14:38:41,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 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 147 [2023-12-22 14:38:41,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:38:41,762 INFO L225 Difference]: With dead ends: 3624 [2023-12-22 14:38:41,762 INFO L226 Difference]: Without dead ends: 2635 [2023-12-22 14:38:41,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 14:38:41,764 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 226 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2023-12-22 14:38:41,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 238 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2023-12-22 14:38:41,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2635 states. [2023-12-22 14:38:41,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2635 to 2635. [2023-12-22 14:38:41,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2635 states, 2634 states have (on average 1.2034927866362946) internal successors, (3170), 2634 states have internal predecessors, (3170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:38:41,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2635 states to 2635 states and 3170 transitions. [2023-12-22 14:38:41,797 INFO L78 Accepts]: Start accepts. Automaton has 2635 states and 3170 transitions. Word has length 147 [2023-12-22 14:38:41,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:38:41,798 INFO L495 AbstractCegarLoop]: Abstraction has 2635 states and 3170 transitions. [2023-12-22 14:38:41,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:38:41,798 INFO L276 IsEmpty]: Start isEmpty. Operand 2635 states and 3170 transitions. [2023-12-22 14:38:41,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-12-22 14:38:41,802 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:38:41,802 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 14:38:41,823 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-22 14:38:42,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:38:42,005 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:38:42,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:38:42,007 INFO L85 PathProgramCache]: Analyzing trace with hash 898571006, now seen corresponding path program 1 times [2023-12-22 14:38:42,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:38:42,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2104703554] [2023-12-22 14:38:42,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:38:42,008 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:38:42,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:38:42,025 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 14:38:42,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-22 14:38:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:38:42,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 14:38:42,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:38:43,238 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 206 proven. 78 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-22 14:38:43,239 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 14:38:49,626 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 206 proven. 78 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-22 14:38:49,627 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:38:49,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2104703554] [2023-12-22 14:38:49,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2104703554] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 14:38:49,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 14:38:49,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 14:38:49,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734748143] [2023-12-22 14:38:49,627 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 14:38:49,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 14:38:49,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:38:49,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 14:38:49,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-22 14:38:49,629 INFO L87 Difference]: Start difference. First operand 2635 states and 3170 transitions. Second operand has 7 states, 7 states have (on average 58.0) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:39:19,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:39:21,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:39:33,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:39:36,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:39:56,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:39:58,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:39:58,226 INFO L93 Difference]: Finished difference Result 6429 states and 7614 transitions. [2023-12-22 14:39:58,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 14:39:58,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 58.0) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 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 282 [2023-12-22 14:39:58,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:39:58,237 INFO L225 Difference]: With dead ends: 6429 [2023-12-22 14:39:58,237 INFO L226 Difference]: Without dead ends: 2964 [2023-12-22 14:39:58,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 557 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-12-22 14:39:58,242 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 2687 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 4899 mSolverCounterSat, 450 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2687 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 5350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 4899 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.8s IncrementalHoareTripleChecker+Time [2023-12-22 14:39:58,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2687 Valid, 131 Invalid, 5350 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [450 Valid, 4899 Invalid, 1 Unknown, 0 Unchecked, 67.8s Time] [2023-12-22 14:39:58,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2023-12-22 14:39:58,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 2964. [2023-12-22 14:39:58,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2964 states, 2963 states have (on average 1.0728990887613905) internal successors, (3179), 2963 states have internal predecessors, (3179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:39:58,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2964 states to 2964 states and 3179 transitions. [2023-12-22 14:39:58,275 INFO L78 Accepts]: Start accepts. Automaton has 2964 states and 3179 transitions. Word has length 282 [2023-12-22 14:39:58,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:39:58,275 INFO L495 AbstractCegarLoop]: Abstraction has 2964 states and 3179 transitions. [2023-12-22 14:39:58,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 58.0) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:39:58,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2964 states and 3179 transitions. [2023-12-22 14:39:58,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2023-12-22 14:39:58,278 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:39:58,278 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 14:39:58,285 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 [2023-12-22 14:39:58,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:39:58,483 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:39:58,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:39:58,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1724227417, now seen corresponding path program 1 times [2023-12-22 14:39:58,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:39:58,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1576752531] [2023-12-22 14:39:58,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:39:58,486 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:39:58,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:39:58,487 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 14:39:58,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-22 14:39:58,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:39:58,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 14:39:58,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:39:59,328 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 14:39:59,328 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 14:39:59,329 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:39:59,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1576752531] [2023-12-22 14:39:59,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1576752531] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 14:39:59,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 14:39:59,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 14:39:59,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84298495] [2023-12-22 14:39:59,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 14:39:59,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 14:39:59,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:39:59,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 14:39:59,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 14:39:59,330 INFO L87 Difference]: Start difference. First operand 2964 states and 3179 transitions. Second operand has 4 states, 4 states have (on average 95.5) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:40:03,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:40:03,701 INFO L93 Difference]: Finished difference Result 5598 states and 6026 transitions. [2023-12-22 14:40:03,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 14:40:03,707 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 95.5) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 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 382 [2023-12-22 14:40:03,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:40:03,714 INFO L225 Difference]: With dead ends: 5598 [2023-12-22 14:40:03,714 INFO L226 Difference]: Without dead ends: 2964 [2023-12-22 14:40:03,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 14:40:03,718 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 301 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1426 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 1432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-22 14:40:03,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 131 Invalid, 1432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1426 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-22 14:40:03,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2023-12-22 14:40:03,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 2964. [2023-12-22 14:40:03,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2964 states, 2963 states have (on average 1.0705366182922713) internal successors, (3172), 2963 states have internal predecessors, (3172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:40:03,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2964 states to 2964 states and 3172 transitions. [2023-12-22 14:40:03,745 INFO L78 Accepts]: Start accepts. Automaton has 2964 states and 3172 transitions. Word has length 382 [2023-12-22 14:40:03,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:40:03,745 INFO L495 AbstractCegarLoop]: Abstraction has 2964 states and 3172 transitions. [2023-12-22 14:40:03,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.5) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:40:03,746 INFO L276 IsEmpty]: Start isEmpty. Operand 2964 states and 3172 transitions. [2023-12-22 14:40:03,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2023-12-22 14:40:03,776 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:40:03,777 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 14:40:03,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-22 14:40:03,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:40:03,981 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:40:03,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:40:03,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1170996890, now seen corresponding path program 1 times [2023-12-22 14:40:03,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:40:03,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [318630928] [2023-12-22 14:40:03,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:40:03,983 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:40:03,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:40:03,984 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 14:40:03,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-22 14:40:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:40:04,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 14:40:04,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:40:04,925 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 62 proven. 315 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 14:40:04,925 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 14:40:05,857 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 282 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-12-22 14:40:05,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:40:05,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [318630928] [2023-12-22 14:40:05,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [318630928] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 14:40:05,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 14:40:05,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-22 14:40:05,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102561500] [2023-12-22 14:40:05,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 14:40:05,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 14:40:05,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:40:05,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 14:40:05,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 14:40:05,859 INFO L87 Difference]: Start difference. First operand 2964 states and 3172 transitions. Second operand has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:40:17,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:40:17,434 INFO L93 Difference]: Finished difference Result 6256 states and 6806 transitions. [2023-12-22 14:40:17,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 14:40:17,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 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 486 [2023-12-22 14:40:17,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:40:17,449 INFO L225 Difference]: With dead ends: 6256 [2023-12-22 14:40:17,449 INFO L226 Difference]: Without dead ends: 3951 [2023-12-22 14:40:17,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 970 GetRequests, 966 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 14:40:17,453 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 210 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2023-12-22 14:40:17,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 24 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 11.5s Time] [2023-12-22 14:40:17,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3951 states. [2023-12-22 14:40:17,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3951 to 3951. [2023-12-22 14:40:17,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3951 states, 3950 states have (on average 1.0840506329113924) internal successors, (4282), 3950 states have internal predecessors, (4282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:40:17,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3951 states to 3951 states and 4282 transitions. [2023-12-22 14:40:17,508 INFO L78 Accepts]: Start accepts. Automaton has 3951 states and 4282 transitions. Word has length 486 [2023-12-22 14:40:17,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:40:17,509 INFO L495 AbstractCegarLoop]: Abstraction has 3951 states and 4282 transitions. [2023-12-22 14:40:17,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:40:17,509 INFO L276 IsEmpty]: Start isEmpty. Operand 3951 states and 4282 transitions. [2023-12-22 14:40:17,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2023-12-22 14:40:17,514 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:40:17,515 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 14:40:17,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-22 14:40:17,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:40:17,720 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:40:17,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:40:17,720 INFO L85 PathProgramCache]: Analyzing trace with hash 561562097, now seen corresponding path program 1 times [2023-12-22 14:40:17,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:40:17,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054511697] [2023-12-22 14:40:17,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:40:17,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:40:17,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:40:17,723 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 14:40:17,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-22 14:40:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:40:17,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 14:40:17,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:40:19,349 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-12-22 14:40:19,349 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 14:40:19,350 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:40:19,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054511697] [2023-12-22 14:40:19,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1054511697] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 14:40:19,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 14:40:19,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 14:40:19,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610830000] [2023-12-22 14:40:19,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 14:40:19,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 14:40:19,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:40:19,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 14:40:19,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 14:40:19,351 INFO L87 Difference]: Start difference. First operand 3951 states and 4282 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 2 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:40:23,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:40:23,488 INFO L93 Difference]: Finished difference Result 7243 states and 7900 transitions. [2023-12-22 14:40:23,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 14:40:23,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 2 states have internal predecessors, (269), 0 states have call successors, (0), 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 510 [2023-12-22 14:40:23,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:40:23,503 INFO L225 Difference]: With dead ends: 7243 [2023-12-22 14:40:23,503 INFO L226 Difference]: Without dead ends: 3951 [2023-12-22 14:40:23,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 14:40:23,507 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 85 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-22 14:40:23,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 125 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-22 14:40:23,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3951 states. [2023-12-22 14:40:23,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3951 to 3951. [2023-12-22 14:40:23,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3951 states, 3950 states have (on average 1.0837974683544305) internal successors, (4281), 3950 states have internal predecessors, (4281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:40:23,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3951 states to 3951 states and 4281 transitions. [2023-12-22 14:40:23,546 INFO L78 Accepts]: Start accepts. Automaton has 3951 states and 4281 transitions. Word has length 510 [2023-12-22 14:40:23,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:40:23,547 INFO L495 AbstractCegarLoop]: Abstraction has 3951 states and 4281 transitions. [2023-12-22 14:40:23,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 2 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:40:23,547 INFO L276 IsEmpty]: Start isEmpty. Operand 3951 states and 4281 transitions. [2023-12-22 14:40:23,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2023-12-22 14:40:23,550 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:40:23,550 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 14:40:23,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-22 14:40:23,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:40:23,754 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:40:23,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:40:23,754 INFO L85 PathProgramCache]: Analyzing trace with hash -972246577, now seen corresponding path program 1 times [2023-12-22 14:40:23,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:40:23,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934372325] [2023-12-22 14:40:23,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:40:23,756 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:40:23,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:40:23,757 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 14:40:23,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 14:40:23,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:40:23,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 14:40:23,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:40:26,030 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 62 proven. 349 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 14:40:26,030 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 14:40:28,268 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 371 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 14:40:28,268 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:40:28,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934372325] [2023-12-22 14:40:28,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [934372325] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 14:40:28,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 14:40:28,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-22 14:40:28,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102961685] [2023-12-22 14:40:28,269 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 14:40:28,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-22 14:40:28,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:40:28,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-22 14:40:28,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-22 14:40:28,270 INFO L87 Difference]: Start difference. First operand 3951 states and 4281 transitions. Second operand has 9 states, 9 states have (on average 108.66666666666667) internal successors, (978), 8 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:40:35,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:40:35,982 INFO L93 Difference]: Finished difference Result 8244 states and 8936 transitions. [2023-12-22 14:40:35,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-22 14:40:35,989 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 108.66666666666667) internal successors, (978), 8 states have internal predecessors, (978), 0 states have call successors, (0), 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 520 [2023-12-22 14:40:35,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:40:36,000 INFO L225 Difference]: With dead ends: 8244 [2023-12-22 14:40:36,000 INFO L226 Difference]: Without dead ends: 4952 [2023-12-22 14:40:36,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1044 GetRequests, 1031 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-12-22 14:40:36,003 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 2293 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 4631 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2293 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 4777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 4631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-12-22 14:40:36,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2293 Valid, 175 Invalid, 4777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 4631 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-12-22 14:40:36,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4952 states. [2023-12-22 14:40:36,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4952 to 4609. [2023-12-22 14:40:36,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4609 states, 4608 states have (on average 1.0731336805555556) internal successors, (4945), 4608 states have internal predecessors, (4945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:40:36,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4609 states to 4609 states and 4945 transitions. [2023-12-22 14:40:36,074 INFO L78 Accepts]: Start accepts. Automaton has 4609 states and 4945 transitions. Word has length 520 [2023-12-22 14:40:36,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:40:36,075 INFO L495 AbstractCegarLoop]: Abstraction has 4609 states and 4945 transitions. [2023-12-22 14:40:36,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 108.66666666666667) internal successors, (978), 8 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:40:36,085 INFO L276 IsEmpty]: Start isEmpty. Operand 4609 states and 4945 transitions. [2023-12-22 14:40:36,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2023-12-22 14:40:36,089 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:40:36,090 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 14:40:36,109 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 [2023-12-22 14:40:36,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:40:36,293 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:40:36,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:40:36,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1500039293, now seen corresponding path program 1 times [2023-12-22 14:40:36,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:40:36,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683178973] [2023-12-22 14:40:36,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:40:36,296 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:40:36,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:40:36,298 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 14:40:36,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-22 14:40:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:40:36,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 14:40:36,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:40:36,692 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 373 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-12-22 14:40:36,692 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 14:40:36,692 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:40:36,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683178973] [2023-12-22 14:40:36,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1683178973] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 14:40:36,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 14:40:36,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 14:40:36,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524044200] [2023-12-22 14:40:36,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 14:40:36,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 14:40:36,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:40:36,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 14:40:36,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 14:40:36,694 INFO L87 Difference]: Start difference. First operand 4609 states and 4945 transitions. Second operand has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:40:41,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:40:41,894 INFO L93 Difference]: Finished difference Result 9217 states and 10004 transitions. [2023-12-22 14:40:41,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 14:40:41,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 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 577 [2023-12-22 14:40:41,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:40:41,926 INFO L225 Difference]: With dead ends: 9217 [2023-12-22 14:40:41,926 INFO L226 Difference]: Without dead ends: 5596 [2023-12-22 14:40:41,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 575 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 14:40:41,928 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 171 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-12-22 14:40:41,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 437 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-12-22 14:40:41,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5596 states. [2023-12-22 14:40:41,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5596 to 5596. [2023-12-22 14:40:41,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5596 states, 5595 states have (on average 1.0647006255585345) internal successors, (5957), 5595 states have internal predecessors, (5957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:40:41,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5596 states to 5596 states and 5957 transitions. [2023-12-22 14:40:41,978 INFO L78 Accepts]: Start accepts. Automaton has 5596 states and 5957 transitions. Word has length 577 [2023-12-22 14:40:41,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:40:41,979 INFO L495 AbstractCegarLoop]: Abstraction has 5596 states and 5957 transitions. [2023-12-22 14:40:41,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:40:41,979 INFO L276 IsEmpty]: Start isEmpty. Operand 5596 states and 5957 transitions. [2023-12-22 14:40:41,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2023-12-22 14:40:41,984 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:40:41,984 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 14:40:42,000 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 (12)] Ended with exit code 0 [2023-12-22 14:40:42,187 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 [2023-12-22 14:40:42,188 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:40:42,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:40:42,188 INFO L85 PathProgramCache]: Analyzing trace with hash -542591095, now seen corresponding path program 1 times [2023-12-22 14:40:42,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:40:42,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567028521] [2023-12-22 14:40:42,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:40:42,190 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:40:42,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:40:42,192 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) [2023-12-22 14:40:42,194 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 [2023-12-22 14:40:42,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:40:42,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 14:40:42,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:40:42,400 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-12-22 14:40:42,401 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 14:40:42,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:40:42,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567028521] [2023-12-22 14:40:42,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567028521] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 14:40:42,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 14:40:42,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 14:40:42,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876554063] [2023-12-22 14:40:42,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 14:40:42,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 14:40:42,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:40:42,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 14:40:42,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 14:40:42,402 INFO L87 Difference]: Start difference. First operand 5596 states and 5957 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:40:47,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:40:47,475 INFO L93 Difference]: Finished difference Result 11520 states and 12446 transitions. [2023-12-22 14:40:47,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 14:40:47,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 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 633 [2023-12-22 14:40:47,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:40:47,485 INFO L225 Difference]: With dead ends: 11520 [2023-12-22 14:40:47,486 INFO L226 Difference]: Without dead ends: 6912 [2023-12-22 14:40:47,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 632 GetRequests, 631 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 14:40:47,489 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 324 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-22 14:40:47,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 436 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-12-22 14:40:47,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6912 states. [2023-12-22 14:40:47,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6912 to 6912. [2023-12-22 14:40:47,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6912 states, 6911 states have (on average 1.0613514686731298) internal successors, (7335), 6911 states have internal predecessors, (7335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:40:47,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6912 states to 6912 states and 7335 transitions. [2023-12-22 14:40:47,539 INFO L78 Accepts]: Start accepts. Automaton has 6912 states and 7335 transitions. Word has length 633 [2023-12-22 14:40:47,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:40:47,540 INFO L495 AbstractCegarLoop]: Abstraction has 6912 states and 7335 transitions. [2023-12-22 14:40:47,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:40:47,540 INFO L276 IsEmpty]: Start isEmpty. Operand 6912 states and 7335 transitions. [2023-12-22 14:40:47,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2023-12-22 14:40:47,547 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:40:47,547 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 14:40:47,551 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 [2023-12-22 14:40:47,751 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 [2023-12-22 14:40:47,752 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:40:47,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:40:47,752 INFO L85 PathProgramCache]: Analyzing trace with hash -35365797, now seen corresponding path program 1 times [2023-12-22 14:40:47,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:40:47,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1570768627] [2023-12-22 14:40:47,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:40:47,754 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:40:47,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:40:47,755 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) [2023-12-22 14:40:47,757 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 [2023-12-22 14:40:47,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:40:47,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 14:40:47,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:40:49,263 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 540 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 14:40:49,263 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 14:41:21,596 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 540 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 14:41:21,596 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:41:21,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1570768627] [2023-12-22 14:41:21,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1570768627] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 14:41:21,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 14:41:21,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-22 14:41:21,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899600713] [2023-12-22 14:41:21,596 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 14:41:21,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 14:41:21,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:41:21,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 14:41:21,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-22 14:41:21,598 INFO L87 Difference]: Start difference. First operand 6912 states and 7335 transitions. Second operand has 8 states, 8 states have (on average 147.0) internal successors, (1176), 7 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:41:58,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:42:03,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:42:10,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:42:26,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:42:29,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:42:31,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:42:43,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:42:46,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:42:50,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:42:52,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:42:57,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:43:06,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:43:15,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:43:16,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:43:18,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:43:20,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:43:27,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:43:29,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:43:30,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:43:34,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:43:37,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:43:40,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:43:42,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:43:45,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:43:50,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:43:53,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:43:55,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:43:58,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:44:02,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:44:05,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:44:14,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:44:15,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:44:17,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:44:20,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:44:24,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:44:30,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:44:31,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:44:32,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:44:32,017 INFO L93 Difference]: Finished difference Result 17885 states and 19299 transitions. [2023-12-22 14:44:32,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 14:44:32,018 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 147.0) internal successors, (1176), 7 states have internal predecessors, (1176), 0 states have call successors, (0), 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 705 [2023-12-22 14:44:32,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:44:32,031 INFO L225 Difference]: With dead ends: 17885 [2023-12-22 14:44:32,032 INFO L226 Difference]: Without dead ends: 10531 [2023-12-22 14:44:32,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1408 GetRequests, 1402 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-22 14:44:32,039 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 404 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 3523 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 175.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 3808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 3523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 190.2s IncrementalHoareTripleChecker+Time [2023-12-22 14:44:32,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 62 Invalid, 3808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 3523 Invalid, 0 Unknown, 0 Unchecked, 190.2s Time] [2023-12-22 14:44:32,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10531 states. [2023-12-22 14:44:32,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10531 to 9544. [2023-12-22 14:44:32,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9544 states, 9543 states have (on average 1.0752383946348107) internal successors, (10261), 9543 states have internal predecessors, (10261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:44:32,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9544 states to 9544 states and 10261 transitions. [2023-12-22 14:44:32,164 INFO L78 Accepts]: Start accepts. Automaton has 9544 states and 10261 transitions. Word has length 705 [2023-12-22 14:44:32,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:44:32,165 INFO L495 AbstractCegarLoop]: Abstraction has 9544 states and 10261 transitions. [2023-12-22 14:44:32,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 147.0) internal successors, (1176), 7 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:44:32,165 INFO L276 IsEmpty]: Start isEmpty. Operand 9544 states and 10261 transitions. [2023-12-22 14:44:32,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 803 [2023-12-22 14:44:32,173 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:44:32,173 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 14:44:32,182 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 [2023-12-22 14:44:32,379 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 [2023-12-22 14:44:32,380 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:44:32,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:44:32,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1937395180, now seen corresponding path program 1 times [2023-12-22 14:44:32,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:44:32,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1778564487] [2023-12-22 14:44:32,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:44:32,383 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:44:32,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:44:32,392 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) [2023-12-22 14:44:32,393 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 [2023-12-22 14:44:32,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:44:32,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 856 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 14:44:32,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:44:35,409 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 0 proven. 814 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 14:44:35,410 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 14:45:05,539 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 0 proven. 814 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 14:45:05,540 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:45:05,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1778564487] [2023-12-22 14:45:05,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1778564487] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 14:45:05,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 14:45:05,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-22 14:45:05,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822568400] [2023-12-22 14:45:05,540 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 14:45:05,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-22 14:45:05,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:45:05,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-22 14:45:05,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-22 14:45:05,542 INFO L87 Difference]: Start difference. First operand 9544 states and 10261 transitions. Second operand has 9 states, 9 states have (on average 152.22222222222223) internal successors, (1370), 8 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:46:12,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:46:20,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:46:32,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:46:51,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:46:51,422 INFO L93 Difference]: Finished difference Result 20846 states and 22388 transitions. [2023-12-22 14:46:51,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 14:46:51,431 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 152.22222222222223) internal successors, (1370), 8 states have internal predecessors, (1370), 0 states have call successors, (0), 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 802 [2023-12-22 14:46:51,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:46:51,451 INFO L225 Difference]: With dead ends: 20846 [2023-12-22 14:46:51,451 INFO L226 Difference]: Without dead ends: 12290 [2023-12-22 14:46:51,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1608 GetRequests, 1595 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-12-22 14:46:51,460 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 1655 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 8032 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1655 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 8242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 8032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 103.5s IncrementalHoareTripleChecker+Time [2023-12-22 14:46:51,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1655 Valid, 146 Invalid, 8242 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [210 Valid, 8032 Invalid, 0 Unknown, 0 Unchecked, 103.5s Time] [2023-12-22 14:46:51,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12290 states. [2023-12-22 14:46:51,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12290 to 10531. [2023-12-22 14:46:51,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10531 states, 10530 states have (on average 1.0620132953466286) internal successors, (11183), 10530 states have internal predecessors, (11183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:46:51,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10531 states to 10531 states and 11183 transitions. [2023-12-22 14:46:51,593 INFO L78 Accepts]: Start accepts. Automaton has 10531 states and 11183 transitions. Word has length 802 [2023-12-22 14:46:51,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:46:51,594 INFO L495 AbstractCegarLoop]: Abstraction has 10531 states and 11183 transitions. [2023-12-22 14:46:51,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.22222222222223) internal successors, (1370), 8 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:46:51,595 INFO L276 IsEmpty]: Start isEmpty. Operand 10531 states and 11183 transitions. [2023-12-22 14:46:51,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1074 [2023-12-22 14:46:51,643 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:46:51,644 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 14:46:51,656 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 [2023-12-22 14:46:51,851 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 [2023-12-22 14:46:51,851 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:46:51,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:46:51,852 INFO L85 PathProgramCache]: Analyzing trace with hash -2112763081, now seen corresponding path program 1 times [2023-12-22 14:46:51,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:46:51,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [931979311] [2023-12-22 14:46:51,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:46:51,856 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:46:51,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:46:51,857 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) [2023-12-22 14:46:51,860 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 [2023-12-22 14:46:52,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:46:52,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 1145 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 14:46:52,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:46:59,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1759 backedges. 967 proven. 453 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2023-12-22 14:46:59,378 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 14:47:31,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1759 backedges. 967 proven. 453 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2023-12-22 14:47:31,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:47:31,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [931979311] [2023-12-22 14:47:31,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [931979311] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 14:47:31,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 14:47:31,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-12-22 14:47:31,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038184682] [2023-12-22 14:47:31,309 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 14:47:31,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-22 14:47:31,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:47:31,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-22 14:47:31,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=195, Unknown=0, NotChecked=0, Total=306 [2023-12-22 14:47:31,311 INFO L87 Difference]: Start difference. First operand 10531 states and 11183 transitions. Second operand has 18 states, 18 states have (on average 69.16666666666667) internal successors, (1245), 17 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:47:51,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:48:14,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:48:22,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:48:29,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:48:45,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:48:45,396 INFO L93 Difference]: Finished difference Result 25507 states and 27165 transitions. [2023-12-22 14:48:45,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-22 14:48:45,406 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 69.16666666666667) internal successors, (1245), 17 states have internal predecessors, (1245), 0 states have call successors, (0), 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 1073 [2023-12-22 14:48:45,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:48:45,422 INFO L225 Difference]: With dead ends: 25507 [2023-12-22 14:48:45,422 INFO L226 Difference]: Without dead ends: 15832 [2023-12-22 14:48:45,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2151 GetRequests, 2128 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=209, Invalid=391, Unknown=0, NotChecked=0, Total=600 [2023-12-22 14:48:45,432 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 198 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 4571 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 4724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 4571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.6s IncrementalHoareTripleChecker+Time [2023-12-22 14:48:45,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 69 Invalid, 4724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 4571 Invalid, 0 Unknown, 0 Unchecked, 71.6s Time] [2023-12-22 14:48:45,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15832 states. [2023-12-22 14:48:45,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15832 to 12359. [2023-12-22 14:48:45,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12359 states, 12358 states have (on average 1.0689431946916976) internal successors, (13210), 12358 states have internal predecessors, (13210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:48:45,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12359 states to 12359 states and 13210 transitions. [2023-12-22 14:48:45,597 INFO L78 Accepts]: Start accepts. Automaton has 12359 states and 13210 transitions. Word has length 1073 [2023-12-22 14:48:45,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:48:45,598 INFO L495 AbstractCegarLoop]: Abstraction has 12359 states and 13210 transitions. [2023-12-22 14:48:45,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 69.16666666666667) internal successors, (1245), 17 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:48:45,599 INFO L276 IsEmpty]: Start isEmpty. Operand 12359 states and 13210 transitions. [2023-12-22 14:48:45,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1076 [2023-12-22 14:48:45,610 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:48:45,610 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 14:48:45,619 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 [2023-12-22 14:48:45,817 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 [2023-12-22 14:48:45,818 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:48:45,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:48:45,818 INFO L85 PathProgramCache]: Analyzing trace with hash 973641522, now seen corresponding path program 1 times [2023-12-22 14:48:45,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:48:45,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304179255] [2023-12-22 14:48:45,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:48:45,821 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:48:45,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:48:45,822 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) [2023-12-22 14:48:45,823 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 [2023-12-22 14:48:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:48:46,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 1147 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 14:48:46,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:48:48,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1765 backedges. 1435 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2023-12-22 14:48:48,140 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 14:48:48,140 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:48:48,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304179255] [2023-12-22 14:48:48,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304179255] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 14:48:48,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 14:48:48,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 14:48:48,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008986262] [2023-12-22 14:48:48,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 14:48:48,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 14:48:48,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:48:48,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 14:48:48,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 14:48:48,143 INFO L87 Difference]: Start difference. First operand 12359 states and 13210 transitions. Second operand has 4 states, 4 states have (on average 192.25) internal successors, (769), 3 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:48:53,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:48:53,989 INFO L93 Difference]: Finished difference Result 24059 states and 25769 transitions. [2023-12-22 14:48:53,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 14:48:53,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 192.25) internal successors, (769), 3 states have internal predecessors, (769), 0 states have call successors, (0), 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 1075 [2023-12-22 14:48:54,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:48:54,032 INFO L225 Difference]: With dead ends: 24059 [2023-12-22 14:48:54,032 INFO L226 Difference]: Without dead ends: 12688 [2023-12-22 14:48:54,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1074 GetRequests, 1072 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 14:48:54,047 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 171 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-12-22 14:48:54,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 113 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-12-22 14:48:54,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12688 states. [2023-12-22 14:48:54,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12688 to 12688. [2023-12-22 14:48:54,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12688 states, 12687 states have (on average 1.0662095057933318) internal successors, (13527), 12687 states have internal predecessors, (13527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:48:54,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12688 states to 12688 states and 13527 transitions. [2023-12-22 14:48:54,181 INFO L78 Accepts]: Start accepts. Automaton has 12688 states and 13527 transitions. Word has length 1075 [2023-12-22 14:48:54,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:48:54,182 INFO L495 AbstractCegarLoop]: Abstraction has 12688 states and 13527 transitions. [2023-12-22 14:48:54,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 192.25) internal successors, (769), 3 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:48:54,182 INFO L276 IsEmpty]: Start isEmpty. Operand 12688 states and 13527 transitions. [2023-12-22 14:48:54,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1107 [2023-12-22 14:48:54,195 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:48:54,196 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 14:48:54,207 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 [2023-12-22 14:48:54,403 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 [2023-12-22 14:48:54,403 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:48:54,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:48:54,404 INFO L85 PathProgramCache]: Analyzing trace with hash 748798689, now seen corresponding path program 1 times [2023-12-22 14:48:54,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:48:54,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731011561] [2023-12-22 14:48:54,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:48:54,407 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:48:54,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:48:54,408 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) [2023-12-22 14:48:54,409 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 [2023-12-22 14:48:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:48:54,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 14:48:54,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:48:55,005 INFO L134 CoverageAnalysis]: Checked inductivity of 2588 backedges. 1746 proven. 0 refuted. 0 times theorem prover too weak. 842 trivial. 0 not checked. [2023-12-22 14:48:55,006 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 14:48:55,006 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:48:55,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [731011561] [2023-12-22 14:48:55,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [731011561] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 14:48:55,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 14:48:55,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 14:48:55,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46770976] [2023-12-22 14:48:55,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 14:48:55,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 14:48:55,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:48:55,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 14:48:55,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 14:48:55,008 INFO L87 Difference]: Start difference. First operand 12688 states and 13527 transitions. Second operand has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:49:01,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:49:01,344 INFO L93 Difference]: Finished difference Result 26033 states and 27839 transitions. [2023-12-22 14:49:01,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 14:49:01,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 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 1106 [2023-12-22 14:49:01,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:49:01,358 INFO L225 Difference]: With dead ends: 26033 [2023-12-22 14:49:01,358 INFO L226 Difference]: Without dead ends: 14333 [2023-12-22 14:49:01,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1105 GetRequests, 1104 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 14:49:01,366 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 223 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-12-22 14:49:01,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 421 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-12-22 14:49:01,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14333 states. [2023-12-22 14:49:01,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14333 to 14004. [2023-12-22 14:49:01,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14004 states, 14003 states have (on average 1.0500607012782974) internal successors, (14704), 14003 states have internal predecessors, (14704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:49:01,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14004 states to 14004 states and 14704 transitions. [2023-12-22 14:49:01,557 INFO L78 Accepts]: Start accepts. Automaton has 14004 states and 14704 transitions. Word has length 1106 [2023-12-22 14:49:01,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:49:01,558 INFO L495 AbstractCegarLoop]: Abstraction has 14004 states and 14704 transitions. [2023-12-22 14:49:01,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:49:01,558 INFO L276 IsEmpty]: Start isEmpty. Operand 14004 states and 14704 transitions. [2023-12-22 14:49:01,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1282 [2023-12-22 14:49:01,575 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:49:01,575 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 14:49:01,581 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 [2023-12-22 14:49:01,781 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 [2023-12-22 14:49:01,782 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:49:01,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:49:01,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1144957164, now seen corresponding path program 1 times [2023-12-22 14:49:01,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:49:01,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506271049] [2023-12-22 14:49:01,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:49:01,786 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:49:01,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:49:01,787 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) [2023-12-22 14:49:01,792 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 [2023-12-22 14:49:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:49:02,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 1393 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 14:49:02,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:49:04,012 INFO L134 CoverageAnalysis]: Checked inductivity of 4063 backedges. 2316 proven. 952 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2023-12-22 14:49:04,012 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 14:49:05,147 INFO L134 CoverageAnalysis]: Checked inductivity of 4063 backedges. 2575 proven. 0 refuted. 0 times theorem prover too weak. 1488 trivial. 0 not checked. [2023-12-22 14:49:05,148 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:49:05,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506271049] [2023-12-22 14:49:05,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506271049] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 14:49:05,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 14:49:05,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2023-12-22 14:49:05,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814823246] [2023-12-22 14:49:05,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 14:49:05,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 14:49:05,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:49:05,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 14:49:05,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-22 14:49:05,150 INFO L87 Difference]: Start difference. First operand 14004 states and 14704 transitions. Second operand has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:49:18,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:49:18,744 INFO L93 Difference]: Finished difference Result 29323 states and 30943 transitions. [2023-12-22 14:49:18,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 14:49:18,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 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 1281 [2023-12-22 14:49:18,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:49:18,761 INFO L225 Difference]: With dead ends: 29323 [2023-12-22 14:49:18,761 INFO L226 Difference]: Without dead ends: 16307 [2023-12-22 14:49:18,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2560 GetRequests, 2554 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-22 14:49:18,772 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 270 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2023-12-22 14:49:18,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 18 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time] [2023-12-22 14:49:18,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16307 states. [2023-12-22 14:49:18,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16307 to 15649. [2023-12-22 14:49:18,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15649 states, 15648 states have (on average 1.0534253578732107) internal successors, (16484), 15648 states have internal predecessors, (16484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:49:18,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15649 states to 15649 states and 16484 transitions. [2023-12-22 14:49:18,970 INFO L78 Accepts]: Start accepts. Automaton has 15649 states and 16484 transitions. Word has length 1281 [2023-12-22 14:49:18,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:49:18,971 INFO L495 AbstractCegarLoop]: Abstraction has 15649 states and 16484 transitions. [2023-12-22 14:49:18,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:49:18,971 INFO L276 IsEmpty]: Start isEmpty. Operand 15649 states and 16484 transitions. [2023-12-22 14:49:18,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1283 [2023-12-22 14:49:18,988 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:49:18,988 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 14:49:18,996 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-12-22 14:49:19,196 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 [2023-12-22 14:49:19,197 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:49:19,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:49:19,197 INFO L85 PathProgramCache]: Analyzing trace with hash -2014933025, now seen corresponding path program 1 times [2023-12-22 14:49:19,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:49:19,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1222098364] [2023-12-22 14:49:19,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:49:19,200 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 14:49:19,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:49:19,201 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) [2023-12-22 14:49:19,204 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 [2023-12-22 14:49:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:49:19,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 1396 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 14:49:19,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:49:21,655 INFO L134 CoverageAnalysis]: Checked inductivity of 4071 backedges. 2175 proven. 1450 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2023-12-22 14:49:21,655 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 14:49:46,027 INFO L134 CoverageAnalysis]: Checked inductivity of 4071 backedges. 2866 proven. 66 refuted. 0 times theorem prover too weak. 1139 trivial. 0 not checked. [2023-12-22 14:49:46,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:49:46,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1222098364] [2023-12-22 14:49:46,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1222098364] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 14:49:46,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 14:49:46,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 10 [2023-12-22 14:49:46,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584124460] [2023-12-22 14:49:46,030 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 14:49:46,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-22 14:49:46,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:49:46,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-22 14:49:46,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-22 14:49:46,033 INFO L87 Difference]: Start difference. First operand 15649 states and 16484 transitions. Second operand has 10 states, 10 states have (on average 141.1) internal successors, (1411), 10 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:50:14,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:50:20,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:50:27,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:50:30,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:50:40,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:50:42,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:50:45,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:50:52,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:50:53,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:50:56,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:51:04,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:51:10,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:51:15,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:51:19,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:51:23,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:51:26,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:51:34,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:51:36,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:51:41,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:51:45,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:51:48,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:51:51,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:51:54,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:51:55,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:51:58,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:52:01,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:52:06,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:52:11,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:52:16,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:52:21,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:52:22,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:52:26,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-22 14:52:27,829 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 14:52:27,857 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 14:52:28,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:52:28,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-22 14:52:28,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2564 GetRequests, 2555 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-12-22 14:52:28,650 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 1899 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 14634 mSolverCounterSat, 173 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 149.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1899 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 14813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 14634 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 161.4s IncrementalHoareTripleChecker+Time [2023-12-22 14:52:28,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1899 Valid, 209 Invalid, 14813 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [173 Valid, 14634 Invalid, 6 Unknown, 0 Unchecked, 161.4s Time] [2023-12-22 14:52:28,652 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 14:52:28,662 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 [2023-12-22 14:52:28,852 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 [2023-12-22 14:52:28,853 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (15649states) and FLOYD_HOARE automaton (currently 11 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (26459 states constructed, input type IntersectNwa). [2023-12-22 14:52:28,860 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] [2023-12-22 14:52:28,862 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 14:52:28,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 02:52:28 BoogieIcfgContainer [2023-12-22 14:52:28,865 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 14:52:28,866 INFO L158 Benchmark]: Toolchain (without parser) took 873483.04ms. Allocated memory was 175.1MB in the beginning and 381.7MB in the end (delta: 206.6MB). Free memory was 118.5MB in the beginning and 190.9MB in the end (delta: -72.4MB). Peak memory consumption was 233.2MB. Max. memory is 8.0GB. [2023-12-22 14:52:28,866 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 175.1MB. Free memory was 130.5MB in the beginning and 130.4MB in the end (delta: 66.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 14:52:28,866 INFO L158 Benchmark]: CACSL2BoogieTranslator took 766.33ms. Allocated memory was 175.1MB in the beginning and 219.2MB in the end (delta: 44.0MB). Free memory was 118.5MB in the beginning and 145.0MB in the end (delta: -26.5MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2023-12-22 14:52:28,868 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.09ms. Allocated memory is still 219.2MB. Free memory was 145.0MB in the beginning and 132.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-22 14:52:28,868 INFO L158 Benchmark]: Boogie Preprocessor took 95.48ms. Allocated memory is still 219.2MB. Free memory was 132.4MB in the beginning and 119.3MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-22 14:52:28,872 INFO L158 Benchmark]: RCFGBuilder took 6706.18ms. Allocated memory is still 219.2MB. Free memory was 119.3MB in the beginning and 125.2MB in the end (delta: -5.8MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. [2023-12-22 14:52:28,873 INFO L158 Benchmark]: TraceAbstraction took 865792.70ms. Allocated memory was 219.2MB in the beginning and 381.7MB in the end (delta: 162.5MB). Free memory was 124.6MB in the beginning and 190.9MB in the end (delta: -66.3MB). Peak memory consumption was 194.4MB. Max. memory is 8.0GB. [2023-12-22 14:52:28,875 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 175.1MB. Free memory was 130.5MB in the beginning and 130.4MB in the end (delta: 66.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 766.33ms. Allocated memory was 175.1MB in the beginning and 219.2MB in the end (delta: 44.0MB). Free memory was 118.5MB in the beginning and 145.0MB in the end (delta: -26.5MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 118.09ms. Allocated memory is still 219.2MB. Free memory was 145.0MB in the beginning and 132.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 95.48ms. Allocated memory is still 219.2MB. Free memory was 132.4MB in the beginning and 119.3MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * RCFGBuilder took 6706.18ms. Allocated memory is still 219.2MB. Free memory was 119.3MB in the beginning and 125.2MB in the end (delta: -5.8MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. * TraceAbstraction took 865792.70ms. Allocated memory was 219.2MB in the beginning and 381.7MB in the end (delta: 162.5MB). Free memory was 124.6MB in the beginning and 190.9MB in the end (delta: -66.3MB). Peak memory consumption was 194.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 86). Cancelled while NwaCegarLoop was constructing difference of abstraction (15649states) and FLOYD_HOARE automaton (currently 11 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (26459 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 334 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 865.7s, OverallIterations: 19, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 702.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 mSolverCounterUnknown, 12056 SdHoareTripleChecker+Valid, 694.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12056 mSDsluCounter, 4337 SdHoareTripleChecker+Invalid, 626.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 505 mSDsCounter, 3134 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51309 IncrementalHoareTripleChecker+Invalid, 54450 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3134 mSolverCounterUnsat, 3832 mSDtfsCounter, 51309 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17539 GetRequests, 17442 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 8.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15649occurred in iteration=18, InterpolantAutomatonStates: 102, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 18 MinimizatonAttempts, 7549 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 154.1s InterpolantComputationTime, 11108 NumberOfCodeBlocks, 11108 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 17512 ConstructedInterpolants, 0 QuantifiedInterpolants, 101812 SizeOfPredicates, 20 NumberOfNonLiveVariables, 12224 ConjunctsInSsa, 84 ConjunctsInUnsatCore, 27 InterpolantComputations, 13 PerfectInterpolantSequences, 24785/30873 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown