/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/Problem14_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 12:23:34,035 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 12:23:34,100 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 12:23:34,104 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 12:23:34,104 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 12:23:34,128 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 12:23:34,129 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 12:23:34,129 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 12:23:34,129 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 12:23:34,132 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 12:23:34,133 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 12:23:34,133 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 12:23:34,133 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 12:23:34,133 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 12:23:34,134 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 12:23:34,134 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 12:23:34,134 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 12:23:34,134 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 12:23:34,134 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 12:23:34,134 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 12:23:34,135 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 12:23:34,136 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 12:23:34,136 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 12:23:34,136 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 12:23:34,136 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 12:23:34,136 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 12:23:34,136 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 12:23:34,136 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 12:23:34,136 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 12:23:34,137 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 12:23:34,138 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 12:23:34,138 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 12:23:34,138 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 12:23:34,138 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 12:23:34,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 12:23:34,138 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 12:23:34,138 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 12:23:34,138 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 12:23:34,138 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 12:23:34,139 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 12:23:34,139 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 12:23:34,139 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 12:23:34,139 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 12:23:34,139 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 12:23:34,139 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 12:23:34,140 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 12:23:34,140 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 12:23:34,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 12:23:34,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 12:23:34,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 12:23:34,366 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 12:23:34,366 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 12:23:34,367 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label26.c [2023-12-22 12:23:35,349 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 12:23:35,553 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 12:23:35,554 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label26.c [2023-12-22 12:23:35,578 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae0f7758a/27abb64b6eed4ab7af38a30412bc5e1f/FLAG548cef0c8 [2023-12-22 12:23:35,590 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae0f7758a/27abb64b6eed4ab7af38a30412bc5e1f [2023-12-22 12:23:35,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 12:23:35,593 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 12:23:35,594 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 12:23:35,594 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 12:23:35,598 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 12:23:35,599 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:23:35" (1/1) ... [2023-12-22 12:23:35,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dbc15c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:23:35, skipping insertion in model container [2023-12-22 12:23:35,600 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:23:35" (1/1) ... [2023-12-22 12:23:35,655 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 12:23:35,809 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/Problem14_label26.c[6725,6738] [2023-12-22 12:23:35,952 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 12:23:35,964 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 12:23:35,999 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/Problem14_label26.c[6725,6738] [2023-12-22 12:23:36,099 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 12:23:36,110 INFO L206 MainTranslator]: Completed translation [2023-12-22 12:23:36,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:23:36 WrapperNode [2023-12-22 12:23:36,110 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 12:23:36,111 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 12:23:36,111 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 12:23:36,111 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 12:23:36,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:23:36" (1/1) ... [2023-12-22 12:23:36,145 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:23:36" (1/1) ... [2023-12-22 12:23:36,203 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 857 [2023-12-22 12:23:36,209 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 12:23:36,210 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 12:23:36,210 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 12:23:36,210 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 12:23:36,218 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:23:36" (1/1) ... [2023-12-22 12:23:36,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:23:36" (1/1) ... [2023-12-22 12:23:36,228 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:23:36" (1/1) ... [2023-12-22 12:23:36,262 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 12:23:36,262 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:23:36" (1/1) ... [2023-12-22 12:23:36,262 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:23:36" (1/1) ... [2023-12-22 12:23:36,295 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:23:36" (1/1) ... [2023-12-22 12:23:36,300 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:23:36" (1/1) ... [2023-12-22 12:23:36,323 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:23:36" (1/1) ... [2023-12-22 12:23:36,327 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:23:36" (1/1) ... [2023-12-22 12:23:36,333 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 12:23:36,334 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 12:23:36,334 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 12:23:36,334 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 12:23:36,334 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:23:36" (1/1) ... [2023-12-22 12:23:36,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 12:23:36,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 12:23:36,369 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 12:23:36,390 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 12:23:36,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 12:23:36,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 12:23:36,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 12:23:36,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 12:23:36,456 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 12:23:36,458 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 12:23:40,117 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 12:23:40,154 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 12:23:40,155 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 12:23:40,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:23:40 BoogieIcfgContainer [2023-12-22 12:23:40,155 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 12:23:40,157 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 12:23:40,157 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 12:23:40,161 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 12:23:40,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:23:35" (1/3) ... [2023-12-22 12:23:40,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f6827d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:23:40, skipping insertion in model container [2023-12-22 12:23:40,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:23:36" (2/3) ... [2023-12-22 12:23:40,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f6827d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:23:40, skipping insertion in model container [2023-12-22 12:23:40,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:23:40" (3/3) ... [2023-12-22 12:23:40,163 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label26.c [2023-12-22 12:23:40,180 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 12:23:40,180 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 12:23:40,226 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 12:23:40,232 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;@5e367529, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 12:23:40,233 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 12:23:40,238 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 0 states have call successors, (0), 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 12:23:40,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-22 12:23:40,248 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:23:40,248 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:23:40,249 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:23:40,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:23:40,254 INFO L85 PathProgramCache]: Analyzing trace with hash 73273614, now seen corresponding path program 1 times [2023-12-22 12:23:40,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:23:40,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877301189] [2023-12-22 12:23:40,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:23:40,268 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 12:23:40,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:23:40,271 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 12:23:40,281 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 12:23:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:23:40,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 12:23:40,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:23:40,359 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 12:23:40,359 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:23:40,360 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:23:40,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877301189] [2023-12-22 12:23:40,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877301189] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:23:40,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:23:40,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 12:23:40,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821708985] [2023-12-22 12:23:40,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:23:40,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 12:23:40,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:23:40,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 12:23:40,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 12:23:40,396 INFO L87 Difference]: Start difference. First operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 0 states have call successors, (0), 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 32.5) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 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 12:23:40,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:23:40,434 INFO L93 Difference]: Finished difference Result 365 states and 719 transitions. [2023-12-22 12:23:40,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 12:23:40,437 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2023-12-22 12:23:40,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:23:40,446 INFO L225 Difference]: With dead ends: 365 [2023-12-22 12:23:40,446 INFO L226 Difference]: Without dead ends: 181 [2023-12-22 12:23:40,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 64 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 12:23:40,453 INFO L413 NwaCegarLoop]: 295 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, 295 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 12:23:40,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 295 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 12:23:40,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-12-22 12:23:40,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2023-12-22 12:23:40,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.6388888888888888) internal successors, (295), 180 states have internal predecessors, (295), 0 states have call successors, (0), 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 12:23:40,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 295 transitions. [2023-12-22 12:23:40,509 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 295 transitions. Word has length 65 [2023-12-22 12:23:40,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:23:40,509 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 295 transitions. [2023-12-22 12:23:40,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 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 12:23:40,510 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 295 transitions. [2023-12-22 12:23:40,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-22 12:23:40,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:23:40,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:23:40,518 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 12:23:40,714 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 12:23:40,715 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:23:40,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:23:40,716 INFO L85 PathProgramCache]: Analyzing trace with hash -343051089, now seen corresponding path program 1 times [2023-12-22 12:23:40,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:23:40,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233203225] [2023-12-22 12:23:40,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:23:40,717 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 12:23:40,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:23:40,718 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 12:23:40,726 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 12:23:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:23:40,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:23:40,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:23:40,948 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 12:23:40,949 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:23:40,949 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:23:40,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1233203225] [2023-12-22 12:23:40,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1233203225] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:23:40,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:23:40,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 12:23:40,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829627193] [2023-12-22 12:23:40,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:23:40,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:23:40,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:23:40,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:23:40,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:23:40,952 INFO L87 Difference]: Start difference. First operand 181 states and 295 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 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 12:23:45,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:23:45,326 INFO L93 Difference]: Finished difference Result 539 states and 882 transitions. [2023-12-22 12:23:45,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:23:45,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2023-12-22 12:23:45,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:23:45,329 INFO L225 Difference]: With dead ends: 539 [2023-12-22 12:23:45,329 INFO L226 Difference]: Without dead ends: 359 [2023-12-22 12:23:45,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 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 12:23:45,331 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 133 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-22 12:23:45,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 87 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-22 12:23:45,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-12-22 12:23:45,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2023-12-22 12:23:45,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 358 states have (on average 1.4217877094972067) internal successors, (509), 358 states have internal predecessors, (509), 0 states have call successors, (0), 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 12:23:45,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 509 transitions. [2023-12-22 12:23:45,352 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 509 transitions. Word has length 65 [2023-12-22 12:23:45,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:23:45,353 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 509 transitions. [2023-12-22 12:23:45,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 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 12:23:45,353 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 509 transitions. [2023-12-22 12:23:45,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-22 12:23:45,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:23:45,357 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 12:23:45,360 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 12:23:45,559 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 12:23:45,560 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:23:45,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:23:45,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1606686927, now seen corresponding path program 1 times [2023-12-22 12:23:45,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:23:45,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [702140714] [2023-12-22 12:23:45,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:23:45,563 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 12:23:45,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:23:45,564 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 12:23:45,566 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 12:23:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:23:45,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 12:23:45,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:23:46,214 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 12:23:46,215 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:23:46,215 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:23:46,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [702140714] [2023-12-22 12:23:46,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [702140714] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:23:46,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:23:46,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 12:23:46,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266575771] [2023-12-22 12:23:46,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:23:46,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:23:46,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:23:46,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:23:46,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:23:46,218 INFO L87 Difference]: Start difference. First operand 359 states and 509 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 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 12:23:49,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:23:49,770 INFO L93 Difference]: Finished difference Result 895 states and 1231 transitions. [2023-12-22 12:23:49,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:23:49,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2023-12-22 12:23:49,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:23:49,773 INFO L225 Difference]: With dead ends: 895 [2023-12-22 12:23:49,773 INFO L226 Difference]: Without dead ends: 537 [2023-12-22 12:23:49,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 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 12:23:49,775 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 112 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-22 12:23:49,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 112 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-22 12:23:49,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2023-12-22 12:23:49,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2023-12-22 12:23:49,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 536 states have (on average 1.3041044776119404) internal successors, (699), 536 states have internal predecessors, (699), 0 states have call successors, (0), 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 12:23:49,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 699 transitions. [2023-12-22 12:23:49,802 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 699 transitions. Word has length 134 [2023-12-22 12:23:49,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:23:49,803 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 699 transitions. [2023-12-22 12:23:49,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 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 12:23:49,803 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 699 transitions. [2023-12-22 12:23:49,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-12-22 12:23:49,807 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:23:49,815 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 12:23:49,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-22 12:23:50,018 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 12:23:50,019 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:23:50,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:23:50,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1104250071, now seen corresponding path program 1 times [2023-12-22 12:23:50,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:23:50,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [962570096] [2023-12-22 12:23:50,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:23:50,021 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 12:23:50,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:23:50,040 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 12:23:50,042 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 12:23:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:23:50,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:23:50,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:23:50,406 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 12:23:50,406 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:23:50,409 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:23:50,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [962570096] [2023-12-22 12:23:50,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [962570096] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:23:50,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:23:50,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 12:23:50,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170889712] [2023-12-22 12:23:50,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:23:50,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:23:50,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:23:50,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:23:50,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:23:50,413 INFO L87 Difference]: Start difference. First operand 537 states and 699 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 2 states have internal predecessors, (170), 0 states have call successors, (0), 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 12:23:55,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:23:55,407 INFO L93 Difference]: Finished difference Result 1251 states and 1690 transitions. [2023-12-22 12:23:55,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:23:55,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 2 states have internal predecessors, (170), 0 states have call successors, (0), 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 170 [2023-12-22 12:23:55,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:23:55,411 INFO L225 Difference]: With dead ends: 1251 [2023-12-22 12:23:55,411 INFO L226 Difference]: Without dead ends: 893 [2023-12-22 12:23:55,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 168 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 12:23:55,413 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 75 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-22 12:23:55,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 118 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-22 12:23:55,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2023-12-22 12:23:55,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 893. [2023-12-22 12:23:55,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 893 states, 892 states have (on average 1.243273542600897) internal successors, (1109), 892 states have internal predecessors, (1109), 0 states have call successors, (0), 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 12:23:55,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 1109 transitions. [2023-12-22 12:23:55,431 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 1109 transitions. Word has length 170 [2023-12-22 12:23:55,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:23:55,432 INFO L495 AbstractCegarLoop]: Abstraction has 893 states and 1109 transitions. [2023-12-22 12:23:55,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 2 states have internal predecessors, (170), 0 states have call successors, (0), 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 12:23:55,432 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1109 transitions. [2023-12-22 12:23:55,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-12-22 12:23:55,438 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:23:55,438 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 12:23:55,443 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 12:23:55,643 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 12:23:55,644 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:23:55,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:23:55,644 INFO L85 PathProgramCache]: Analyzing trace with hash 2044302085, now seen corresponding path program 1 times [2023-12-22 12:23:55,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:23:55,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [561745312] [2023-12-22 12:23:55,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:23:55,645 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 12:23:55,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:23:55,647 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 12:23:55,650 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 12:23:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:23:55,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 12:23:55,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:23:56,515 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-22 12:23:56,515 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:23:56,515 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:23:56,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [561745312] [2023-12-22 12:23:56,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [561745312] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:23:56,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:23:56,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:23:56,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949667373] [2023-12-22 12:23:56,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:23:56,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 12:23:56,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:23:56,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 12:23:56,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 12:23:56,517 INFO L87 Difference]: Start difference. First operand 893 states and 1109 transitions. Second operand has 4 states, 4 states have (on average 45.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 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 12:23:59,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:23:59,800 INFO L93 Difference]: Finished difference Result 1280 states and 1658 transitions. [2023-12-22 12:23:59,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 12:23:59,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 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 214 [2023-12-22 12:23:59,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:23:59,803 INFO L225 Difference]: With dead ends: 1280 [2023-12-22 12:23:59,803 INFO L226 Difference]: Without dead ends: 715 [2023-12-22 12:23:59,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 211 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 12:23:59,804 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 110 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-22 12:23:59,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 116 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-22 12:23:59,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2023-12-22 12:23:59,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 715. [2023-12-22 12:23:59,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 714 states have (on average 1.2324929971988796) internal successors, (880), 714 states have internal predecessors, (880), 0 states have call successors, (0), 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 12:23:59,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 880 transitions. [2023-12-22 12:23:59,818 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 880 transitions. Word has length 214 [2023-12-22 12:23:59,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:23:59,818 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 880 transitions. [2023-12-22 12:23:59,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 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 12:23:59,819 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 880 transitions. [2023-12-22 12:23:59,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2023-12-22 12:23:59,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:23:59,822 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:23:59,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-22 12:24:00,027 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 12:24:00,028 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:24:00,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:24:00,028 INFO L85 PathProgramCache]: Analyzing trace with hash 454423003, now seen corresponding path program 1 times [2023-12-22 12:24:00,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:24:00,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499845908] [2023-12-22 12:24:00,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:24:00,030 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 12:24:00,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:24:00,031 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 12:24:00,060 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 12:24:00,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:24:00,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 12:24:00,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:24:00,690 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 191 proven. 131 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-22 12:24:00,690 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:24:01,565 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-22 12:24:01,565 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:24:01,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499845908] [2023-12-22 12:24:01,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [499845908] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 12:24:01,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 12:24:01,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 12:24:01,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421365290] [2023-12-22 12:24:01,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:24:01,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:24:01,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:24:01,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:24:01,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 12:24:01,568 INFO L87 Difference]: Start difference. First operand 715 states and 880 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 12:24:09,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:24:09,656 INFO L93 Difference]: Finished difference Result 1429 states and 1919 transitions. [2023-12-22 12:24:09,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:24:09,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 342 [2023-12-22 12:24:09,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:24:09,661 INFO L225 Difference]: With dead ends: 1429 [2023-12-22 12:24:09,661 INFO L226 Difference]: Without dead ends: 1071 [2023-12-22 12:24:09,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 682 GetRequests, 679 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 12:24:09,662 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 122 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-12-22 12:24:09,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 264 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2023-12-22 12:24:09,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-12-22 12:24:09,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1071. [2023-12-22 12:24:09,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1070 states have (on average 1.2794392523364486) internal successors, (1369), 1070 states have internal predecessors, (1369), 0 states have call successors, (0), 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 12:24:09,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1369 transitions. [2023-12-22 12:24:09,681 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1369 transitions. Word has length 342 [2023-12-22 12:24:09,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:24:09,681 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1369 transitions. [2023-12-22 12:24:09,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 12:24:09,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1369 transitions. [2023-12-22 12:24:09,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2023-12-22 12:24:09,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:24:09,686 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:24:09,695 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 12:24:09,892 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 12:24:09,893 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:24:09,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:24:09,893 INFO L85 PathProgramCache]: Analyzing trace with hash 242008630, now seen corresponding path program 1 times [2023-12-22 12:24:09,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:24:09,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614158441] [2023-12-22 12:24:09,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:24:09,895 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 12:24:09,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:24:09,896 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 12:24:09,915 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 12:24:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:24:10,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 12:24:10,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:24:10,447 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 191 proven. 135 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-22 12:24:10,448 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:24:11,166 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 326 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-22 12:24:11,166 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:24:11,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614158441] [2023-12-22 12:24:11,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [614158441] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 12:24:11,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 12:24:11,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 12:24:11,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048720190] [2023-12-22 12:24:11,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:24:11,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:24:11,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:24:11,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:24:11,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 12:24:11,168 INFO L87 Difference]: Start difference. First operand 1071 states and 1369 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 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 12:24:19,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:24:19,452 INFO L93 Difference]: Finished difference Result 2319 states and 3160 transitions. [2023-12-22 12:24:19,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:24:19,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 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 344 [2023-12-22 12:24:19,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:24:19,458 INFO L225 Difference]: With dead ends: 2319 [2023-12-22 12:24:19,458 INFO L226 Difference]: Without dead ends: 1605 [2023-12-22 12:24:19,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 686 GetRequests, 683 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 12:24:19,460 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 134 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-12-22 12:24:19,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 55 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2023-12-22 12:24:19,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1605 states. [2023-12-22 12:24:19,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1605 to 1605. [2023-12-22 12:24:19,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1605 states, 1604 states have (on average 1.2662094763092269) internal successors, (2031), 1604 states have internal predecessors, (2031), 0 states have call successors, (0), 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 12:24:19,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 2031 transitions. [2023-12-22 12:24:19,491 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 2031 transitions. Word has length 344 [2023-12-22 12:24:19,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:24:19,492 INFO L495 AbstractCegarLoop]: Abstraction has 1605 states and 2031 transitions. [2023-12-22 12:24:19,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 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 12:24:19,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 2031 transitions. [2023-12-22 12:24:19,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2023-12-22 12:24:19,496 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:24:19,496 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 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 12:24:19,503 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 12:24:19,702 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 12:24:19,703 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:24:19,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:24:19,703 INFO L85 PathProgramCache]: Analyzing trace with hash 776084295, now seen corresponding path program 1 times [2023-12-22 12:24:19,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:24:19,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [202371076] [2023-12-22 12:24:19,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:24:19,705 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 12:24:19,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:24:19,707 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 12:24:19,731 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 12:24:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:24:19,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:24:19,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:24:20,219 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2023-12-22 12:24:20,219 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:24:20,219 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:24:20,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [202371076] [2023-12-22 12:24:20,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [202371076] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:24:20,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:24:20,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 12:24:20,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815498630] [2023-12-22 12:24:20,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:24:20,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:24:20,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:24:20,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:24:20,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:24:20,221 INFO L87 Difference]: Start difference. First operand 1605 states and 2031 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 2 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:24:24,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:24:24,776 INFO L93 Difference]: Finished difference Result 3387 states and 4449 transitions. [2023-12-22 12:24:24,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:24:24,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 2 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 350 [2023-12-22 12:24:24,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:24:24,783 INFO L225 Difference]: With dead ends: 3387 [2023-12-22 12:24:24,783 INFO L226 Difference]: Without dead ends: 2139 [2023-12-22 12:24:24,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 348 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 12:24:24,786 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 74 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-22 12:24:24,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 115 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-22 12:24:24,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2023-12-22 12:24:24,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 2139. [2023-12-22 12:24:24,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2138 states have (on average 1.2474275023386343) internal successors, (2667), 2138 states have internal predecessors, (2667), 0 states have call successors, (0), 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 12:24:24,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 2667 transitions. [2023-12-22 12:24:24,821 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 2667 transitions. Word has length 350 [2023-12-22 12:24:24,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:24:24,821 INFO L495 AbstractCegarLoop]: Abstraction has 2139 states and 2667 transitions. [2023-12-22 12:24:24,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 2 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:24:24,821 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 2667 transitions. [2023-12-22 12:24:24,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2023-12-22 12:24:24,823 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:24:24,823 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:24:24,832 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 12:24:25,030 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 12:24:25,030 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:24:25,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:24:25,031 INFO L85 PathProgramCache]: Analyzing trace with hash 463799088, now seen corresponding path program 1 times [2023-12-22 12:24:25,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:24:25,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850652487] [2023-12-22 12:24:25,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:24:25,033 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 12:24:25,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:24:25,034 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 12:24:25,063 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 12:24:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:24:25,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 12:24:25,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:24:26,736 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 105 proven. 277 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-22 12:24:26,736 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:24:37,078 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 353 proven. 29 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-22 12:24:37,079 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:24:37,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850652487] [2023-12-22 12:24:37,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [850652487] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:24:37,079 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:24:37,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-22 12:24:37,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279310099] [2023-12-22 12:24:37,079 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:24:37,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 12:24:37,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:24:37,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 12:24:37,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-22 12:24:37,081 INFO L87 Difference]: Start difference. First operand 2139 states and 2667 transitions. Second operand has 8 states, 8 states have (on average 62.75) internal successors, (502), 7 states have internal predecessors, (502), 0 states have call successors, (0), 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 12:25:24,411 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 12:25:28,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:25:31,781 WARN L539 Checker$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 12:25:34,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:25:34,058 INFO L93 Difference]: Finished difference Result 5817 states and 7414 transitions. [2023-12-22 12:25:34,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 12:25:34,059 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 62.75) internal successors, (502), 7 states have internal predecessors, (502), 0 states have call successors, (0), 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 372 [2023-12-22 12:25:34,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:25:34,070 INFO L225 Difference]: With dead ends: 5817 [2023-12-22 12:25:34,070 INFO L226 Difference]: Without dead ends: 3919 [2023-12-22 12:25:34,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 743 GetRequests, 736 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-22 12:25:34,073 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 871 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 2032 mSolverCounterSat, 463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 2495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 463 IncrementalHoareTripleChecker+Valid, 2032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.5s IncrementalHoareTripleChecker+Time [2023-12-22 12:25:34,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 43 Invalid, 2495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [463 Valid, 2032 Invalid, 0 Unknown, 0 Unchecked, 56.5s Time] [2023-12-22 12:25:34,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3919 states. [2023-12-22 12:25:34,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3919 to 3741. [2023-12-22 12:25:34,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3741 states, 3740 states have (on average 1.1090909090909091) internal successors, (4148), 3740 states have internal predecessors, (4148), 0 states have call successors, (0), 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 12:25:34,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3741 states to 3741 states and 4148 transitions. [2023-12-22 12:25:34,132 INFO L78 Accepts]: Start accepts. Automaton has 3741 states and 4148 transitions. Word has length 372 [2023-12-22 12:25:34,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:25:34,133 INFO L495 AbstractCegarLoop]: Abstraction has 3741 states and 4148 transitions. [2023-12-22 12:25:34,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 62.75) internal successors, (502), 7 states have internal predecessors, (502), 0 states have call successors, (0), 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 12:25:34,133 INFO L276 IsEmpty]: Start isEmpty. Operand 3741 states and 4148 transitions. [2023-12-22 12:25:34,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 720 [2023-12-22 12:25:34,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:25:34,139 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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, 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, 1, 1, 1, 1, 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 12:25:34,155 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 12:25:34,346 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 12:25:34,346 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:25:34,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:25:34,347 INFO L85 PathProgramCache]: Analyzing trace with hash 973858324, now seen corresponding path program 1 times [2023-12-22 12:25:34,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:25:34,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546916072] [2023-12-22 12:25:34,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:25:34,350 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 12:25:34,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:25:34,351 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 12:25:34,357 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 12:25:34,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:25:34,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-22 12:25:34,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:25:43,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1434 backedges. 423 proven. 898 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-12-22 12:25:43,008 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:26:06,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1434 backedges. 1053 proven. 268 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-12-22 12:26:06,360 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:26:06,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546916072] [2023-12-22 12:26:06,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [546916072] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:26:06,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:26:06,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2023-12-22 12:26:06,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744778426] [2023-12-22 12:26:06,361 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:26:06,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-22 12:26:06,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:26:06,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-22 12:26:06,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2023-12-22 12:26:06,365 INFO L87 Difference]: Start difference. First operand 3741 states and 4148 transitions. Second operand has 21 states, 21 states have (on average 54.42857142857143) internal successors, (1143), 21 states have internal predecessors, (1143), 0 states have call successors, (0), 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 12:26:13,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:26:15,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:26:15,152 INFO L93 Difference]: Finished difference Result 7107 states and 7927 transitions. [2023-12-22 12:26:15,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-22 12:26:15,153 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 54.42857142857143) internal successors, (1143), 21 states have internal predecessors, (1143), 0 states have call successors, (0), 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 719 [2023-12-22 12:26:15,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:26:15,162 INFO L225 Difference]: With dead ends: 7107 [2023-12-22 12:26:15,163 INFO L226 Difference]: Without dead ends: 4079 [2023-12-22 12:26:15,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1436 GetRequests, 1417 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2023-12-22 12:26:15,166 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 203 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 5011 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 5044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 5011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2023-12-22 12:26:15,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 106 Invalid, 5044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 5011 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2023-12-22 12:26:15,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4079 states. [2023-12-22 12:26:15,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4079 to 3554. [2023-12-22 12:26:15,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3554 states, 3553 states have (on average 1.1131438221221504) internal successors, (3955), 3553 states have internal predecessors, (3955), 0 states have call successors, (0), 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 12:26:15,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3554 states to 3554 states and 3955 transitions. [2023-12-22 12:26:15,213 INFO L78 Accepts]: Start accepts. Automaton has 3554 states and 3955 transitions. Word has length 719 [2023-12-22 12:26:15,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:26:15,215 INFO L495 AbstractCegarLoop]: Abstraction has 3554 states and 3955 transitions. [2023-12-22 12:26:15,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 54.42857142857143) internal successors, (1143), 21 states have internal predecessors, (1143), 0 states have call successors, (0), 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 12:26:15,215 INFO L276 IsEmpty]: Start isEmpty. Operand 3554 states and 3955 transitions. [2023-12-22 12:26:15,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 738 [2023-12-22 12:26:15,220 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:26:15,221 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:26:15,234 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 12:26:15,426 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 12:26:15,427 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:26:15,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:26:15,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1704825121, now seen corresponding path program 1 times [2023-12-22 12:26:15,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:26:15,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [453831323] [2023-12-22 12:26:15,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:26:15,430 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 12:26:15,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:26:15,431 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 12:26:15,431 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 12:26:15,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:26:15,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 12:26:15,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:26:21,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 864 proven. 420 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-12-22 12:26:21,797 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:26:34,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 1248 proven. 36 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-12-22 12:26:34,092 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:26:34,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [453831323] [2023-12-22 12:26:34,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [453831323] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:26:34,094 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:26:34,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-12-22 12:26:34,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162384270] [2023-12-22 12:26:34,104 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:26:34,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-22 12:26:34,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:26:34,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-22 12:26:34,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2023-12-22 12:26:34,108 INFO L87 Difference]: Start difference. First operand 3554 states and 3955 transitions. Second operand has 20 states, 20 states have (on average 47.8) internal successors, (956), 20 states have internal predecessors, (956), 0 states have call successors, (0), 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 12:26:47,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:26:47,057 INFO L93 Difference]: Finished difference Result 7435 states and 8255 transitions. [2023-12-22 12:26:47,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-22 12:26:47,058 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 47.8) internal successors, (956), 20 states have internal predecessors, (956), 0 states have call successors, (0), 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 737 [2023-12-22 12:26:47,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:26:47,068 INFO L225 Difference]: With dead ends: 7435 [2023-12-22 12:26:47,069 INFO L226 Difference]: Without dead ends: 3864 [2023-12-22 12:26:47,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1486 GetRequests, 1458 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=264, Invalid=606, Unknown=0, NotChecked=0, Total=870 [2023-12-22 12:26:47,073 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 1264 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 5575 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 5701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 5575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2023-12-22 12:26:47,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1264 Valid, 77 Invalid, 5701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 5575 Invalid, 0 Unknown, 0 Unchecked, 11.5s Time] [2023-12-22 12:26:47,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3864 states. [2023-12-22 12:26:47,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3864 to 3531. [2023-12-22 12:26:47,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3531 states, 3530 states have (on average 1.0875354107648725) internal successors, (3839), 3530 states have internal predecessors, (3839), 0 states have call successors, (0), 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 12:26:47,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3531 states to 3531 states and 3839 transitions. [2023-12-22 12:26:47,122 INFO L78 Accepts]: Start accepts. Automaton has 3531 states and 3839 transitions. Word has length 737 [2023-12-22 12:26:47,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:26:47,122 INFO L495 AbstractCegarLoop]: Abstraction has 3531 states and 3839 transitions. [2023-12-22 12:26:47,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 47.8) internal successors, (956), 20 states have internal predecessors, (956), 0 states have call successors, (0), 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 12:26:47,123 INFO L276 IsEmpty]: Start isEmpty. Operand 3531 states and 3839 transitions. [2023-12-22 12:26:47,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 815 [2023-12-22 12:26:47,130 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:26:47,130 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:26:47,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-22 12:26:47,336 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 12:26:47,337 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:26:47,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:26:47,337 INFO L85 PathProgramCache]: Analyzing trace with hash 487682433, now seen corresponding path program 1 times [2023-12-22 12:26:47,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:26:47,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141016460] [2023-12-22 12:26:47,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:26:47,341 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:26:47,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:26:47,342 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 12:26:47,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-22 12:26:47,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:26:47,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 895 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-22 12:26:47,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:26:53,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1900 backedges. 518 proven. 1115 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2023-12-22 12:26:53,337 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:28:40,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1900 backedges. 1633 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2023-12-22 12:28:40,861 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:28:40,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141016460] [2023-12-22 12:28:40,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [141016460] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 12:28:40,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 12:28:40,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11] total 22 [2023-12-22 12:28:40,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576161408] [2023-12-22 12:28:40,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:28:40,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-22 12:28:40,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:28:40,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-22 12:28:40,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=298, Unknown=1, NotChecked=0, Total=462 [2023-12-22 12:28:40,863 INFO L87 Difference]: Start difference. First operand 3531 states and 3839 transitions. Second operand has 12 states, 12 states have (on average 52.166666666666664) internal successors, (626), 12 states have internal predecessors, (626), 0 states have call successors, (0), 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 12:28:50,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:28:50,903 INFO L93 Difference]: Finished difference Result 6669 states and 7285 transitions. [2023-12-22 12:28:50,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-22 12:28:50,904 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 52.166666666666664) internal successors, (626), 12 states have internal predecessors, (626), 0 states have call successors, (0), 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 814 [2023-12-22 12:28:50,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:28:50,912 INFO L225 Difference]: With dead ends: 6669 [2023-12-22 12:28:50,912 INFO L226 Difference]: Without dead ends: 3603 [2023-12-22 12:28:50,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1626 GetRequests, 1604 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 23.3s TimeCoverageRelationStatistics Valid=163, Invalid=298, Unknown=1, NotChecked=0, Total=462 [2023-12-22 12:28:50,915 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 18 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2023-12-22 12:28:50,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 59 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2023-12-22 12:28:50,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3603 states. [2023-12-22 12:28:50,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3603 to 3603. [2023-12-22 12:28:50,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3603 states, 3602 states have (on average 1.0857856746252081) internal successors, (3911), 3602 states have internal predecessors, (3911), 0 states have call successors, (0), 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 12:28:50,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3603 states to 3603 states and 3911 transitions. [2023-12-22 12:28:50,956 INFO L78 Accepts]: Start accepts. Automaton has 3603 states and 3911 transitions. Word has length 814 [2023-12-22 12:28:50,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:28:50,956 INFO L495 AbstractCegarLoop]: Abstraction has 3603 states and 3911 transitions. [2023-12-22 12:28:50,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 52.166666666666664) internal successors, (626), 12 states have internal predecessors, (626), 0 states have call successors, (0), 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 12:28:50,957 INFO L276 IsEmpty]: Start isEmpty. Operand 3603 states and 3911 transitions. [2023-12-22 12:28:50,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 887 [2023-12-22 12:28:50,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:28:50,964 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:28:50,984 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 12:28:51,170 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 12:28:51,171 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:28:51,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:28:51,172 INFO L85 PathProgramCache]: Analyzing trace with hash -723927231, now seen corresponding path program 1 times [2023-12-22 12:28:51,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:28:51,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236580333] [2023-12-22 12:28:51,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:28:51,175 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 12:28:51,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:28:51,190 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 12:28:51,193 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 12:28:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:28:51,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 977 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 12:28:51,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:28:52,962 INFO L134 CoverageAnalysis]: Checked inductivity of 2395 backedges. 0 proven. 2024 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2023-12-22 12:28:52,962 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:28:56,906 INFO L134 CoverageAnalysis]: Checked inductivity of 2395 backedges. 1387 proven. 64 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2023-12-22 12:28:56,906 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:28:56,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236580333] [2023-12-22 12:28:56,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236580333] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:28:56,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:28:56,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2023-12-22 12:28:56,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133327183] [2023-12-22 12:28:56,907 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:28:56,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-22 12:28:56,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:28:56,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-22 12:28:56,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-12-22 12:28:56,914 INFO L87 Difference]: Start difference. First operand 3603 states and 3911 transitions. Second operand has 10 states, 10 states have (on average 108.4) internal successors, (1084), 10 states have internal predecessors, (1084), 0 states have call successors, (0), 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 12:29:06,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:29:17,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:29:17,733 INFO L93 Difference]: Finished difference Result 7966 states and 8735 transitions. [2023-12-22 12:29:17,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 12:29:17,734 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 108.4) internal successors, (1084), 10 states have internal predecessors, (1084), 0 states have call successors, (0), 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 886 [2023-12-22 12:29:17,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:29:17,745 INFO L225 Difference]: With dead ends: 7966 [2023-12-22 12:29:17,745 INFO L226 Difference]: Without dead ends: 4898 [2023-12-22 12:29:17,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1772 GetRequests, 1763 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-12-22 12:29:17,748 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 490 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 4221 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 4418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 4221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2023-12-22 12:29:17,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 81 Invalid, 4418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 4221 Invalid, 0 Unknown, 0 Unchecked, 20.7s Time] [2023-12-22 12:29:17,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4898 states. [2023-12-22 12:29:17,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4898 to 4108. [2023-12-22 12:29:17,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4108 states, 4107 states have (on average 1.067445824202581) internal successors, (4384), 4107 states have internal predecessors, (4384), 0 states have call successors, (0), 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 12:29:17,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4108 states to 4108 states and 4384 transitions. [2023-12-22 12:29:17,814 INFO L78 Accepts]: Start accepts. Automaton has 4108 states and 4384 transitions. Word has length 886 [2023-12-22 12:29:17,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:29:17,814 INFO L495 AbstractCegarLoop]: Abstraction has 4108 states and 4384 transitions. [2023-12-22 12:29:17,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 108.4) internal successors, (1084), 10 states have internal predecessors, (1084), 0 states have call successors, (0), 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 12:29:17,815 INFO L276 IsEmpty]: Start isEmpty. Operand 4108 states and 4384 transitions. [2023-12-22 12:29:17,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 966 [2023-12-22 12:29:17,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:29:17,822 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 7, 7, 7, 7, 7, 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:29:17,828 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 12:29:18,028 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 12:29:18,029 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:29:18,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:29:18,030 INFO L85 PathProgramCache]: Analyzing trace with hash 85131078, now seen corresponding path program 1 times [2023-12-22 12:29:18,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:29:18,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786988792] [2023-12-22 12:29:18,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:29:18,032 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 12:29:18,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:29:18,033 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 12:29:18,037 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 12:29:18,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:29:18,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 1064 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 12:29:18,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:29:19,769 INFO L134 CoverageAnalysis]: Checked inductivity of 3002 backedges. 1054 proven. 0 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2023-12-22 12:29:19,770 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:29:19,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:29:19,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786988792] [2023-12-22 12:29:19,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786988792] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:29:19,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:29:19,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:29:19,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623500438] [2023-12-22 12:29:19,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:29:19,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 12:29:19,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:29:19,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 12:29:19,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 12:29:19,772 INFO L87 Difference]: Start difference. First operand 4108 states and 4384 transitions. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 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 12:29:23,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:29:23,258 INFO L93 Difference]: Finished difference Result 8422 states and 9096 transitions. [2023-12-22 12:29:23,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 12:29:23,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 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 965 [2023-12-22 12:29:23,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:29:23,269 INFO L225 Difference]: With dead ends: 8422 [2023-12-22 12:29:23,269 INFO L226 Difference]: Without dead ends: 5354 [2023-12-22 12:29:23,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 964 GetRequests, 962 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 12:29:23,272 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 144 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-22 12:29:23,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 13 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-22 12:29:23,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5354 states. [2023-12-22 12:29:23,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5354 to 5176. [2023-12-22 12:29:23,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5176 states, 5175 states have (on average 1.0492753623188407) internal successors, (5430), 5175 states have internal predecessors, (5430), 0 states have call successors, (0), 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 12:29:23,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 5430 transitions. [2023-12-22 12:29:23,333 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 5430 transitions. Word has length 965 [2023-12-22 12:29:23,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:29:23,334 INFO L495 AbstractCegarLoop]: Abstraction has 5176 states and 5430 transitions. [2023-12-22 12:29:23,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 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 12:29:23,334 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 5430 transitions. [2023-12-22 12:29:23,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 991 [2023-12-22 12:29:23,342 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:29:23,343 INFO L195 NwaCegarLoop]: trace histogram [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, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 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, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:29:23,353 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 12:29:23,551 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 12:29:23,552 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:29:23,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:29:23,552 INFO L85 PathProgramCache]: Analyzing trace with hash -945620914, now seen corresponding path program 1 times [2023-12-22 12:29:23,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:29:23,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1009129843] [2023-12-22 12:29:23,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:29:23,555 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 12:29:23,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:29:23,556 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 12:29:23,560 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 12:29:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:29:23,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 1088 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 12:29:23,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:29:25,239 INFO L134 CoverageAnalysis]: Checked inductivity of 3162 backedges. 1850 proven. 0 refuted. 0 times theorem prover too weak. 1312 trivial. 0 not checked. [2023-12-22 12:29:25,240 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:29:25,240 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:29:25,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1009129843] [2023-12-22 12:29:25,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1009129843] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:29:25,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:29:25,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:29:25,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063496244] [2023-12-22 12:29:25,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:29:25,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 12:29:25,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:29:25,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 12:29:25,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 12:29:25,241 INFO L87 Difference]: Start difference. First operand 5176 states and 5430 transitions. Second operand has 4 states, 4 states have (on average 96.25) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 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 12:29:27,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:29:27,810 INFO L93 Difference]: Finished difference Result 9490 states and 9997 transitions. [2023-12-22 12:29:27,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 12:29:27,811 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 96.25) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 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 990 [2023-12-22 12:29:27,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:29:27,821 INFO L225 Difference]: With dead ends: 9490 [2023-12-22 12:29:27,822 INFO L226 Difference]: Without dead ends: 5354 [2023-12-22 12:29:27,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 989 GetRequests, 987 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 12:29:27,830 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 65 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-22 12:29:27,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 54 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-22 12:29:27,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5354 states. [2023-12-22 12:29:27,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5354 to 5354. [2023-12-22 12:29:27,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5353 states have (on average 1.0481972725574444) internal successors, (5611), 5353 states have internal predecessors, (5611), 0 states have call successors, (0), 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 12:29:27,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 5611 transitions. [2023-12-22 12:29:27,891 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 5611 transitions. Word has length 990 [2023-12-22 12:29:27,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:29:27,891 INFO L495 AbstractCegarLoop]: Abstraction has 5354 states and 5611 transitions. [2023-12-22 12:29:27,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.25) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 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 12:29:27,892 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 5611 transitions. [2023-12-22 12:29:27,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1080 [2023-12-22 12:29:27,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:29:27,902 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 8, 8, 8, 8, 8, 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, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:29:27,915 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 12:29:28,112 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 12:29:28,113 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:29:28,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:29:28,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1973369327, now seen corresponding path program 1 times [2023-12-22 12:29:28,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:29:28,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [705536123] [2023-12-22 12:29:28,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:29:28,117 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 12:29:28,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:29:28,118 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 12:29:28,120 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 12:29:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:29:28,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 1186 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 12:29:28,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:29:31,596 INFO L134 CoverageAnalysis]: Checked inductivity of 3845 backedges. 575 proven. 2820 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2023-12-22 12:29:31,596 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:29:45,675 INFO L134 CoverageAnalysis]: Checked inductivity of 3845 backedges. 575 proven. 2247 refuted. 0 times theorem prover too weak. 1023 trivial. 0 not checked. [2023-12-22 12:29:45,676 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:29:45,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [705536123] [2023-12-22 12:29:45,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [705536123] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:29:45,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:29:45,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2023-12-22 12:29:45,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508962152] [2023-12-22 12:29:45,677 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:29:45,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-22 12:29:45,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:29:45,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-22 12:29:45,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-12-22 12:29:45,679 INFO L87 Difference]: Start difference. First operand 5354 states and 5611 transitions. Second operand has 11 states, 11 states have (on average 113.63636363636364) internal successors, (1250), 10 states have internal predecessors, (1250), 0 states have call successors, (0), 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 12:30:14,605 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 12:30:19,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:30:19,216 INFO L93 Difference]: Finished difference Result 11348 states and 11982 transitions. [2023-12-22 12:30:19,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-22 12:30:19,217 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 113.63636363636364) internal successors, (1250), 10 states have internal predecessors, (1250), 0 states have call successors, (0), 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 1079 [2023-12-22 12:30:19,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:30:19,229 INFO L225 Difference]: With dead ends: 11348 [2023-12-22 12:30:19,229 INFO L226 Difference]: Without dead ends: 7034 [2023-12-22 12:30:19,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2159 GetRequests, 2147 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2023-12-22 12:30:19,235 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 898 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 5164 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 898 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 5372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 5164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.6s IncrementalHoareTripleChecker+Time [2023-12-22 12:30:19,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [898 Valid, 96 Invalid, 5372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 5164 Invalid, 0 Unknown, 0 Unchecked, 32.6s Time] [2023-12-22 12:30:19,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7034 states. [2023-12-22 12:30:19,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7034 to 6244. [2023-12-22 12:30:19,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6244 states, 6243 states have (on average 1.0480538202787122) internal successors, (6543), 6243 states have internal predecessors, (6543), 0 states have call successors, (0), 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 12:30:19,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6244 states to 6244 states and 6543 transitions. [2023-12-22 12:30:19,328 INFO L78 Accepts]: Start accepts. Automaton has 6244 states and 6543 transitions. Word has length 1079 [2023-12-22 12:30:19,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:30:19,329 INFO L495 AbstractCegarLoop]: Abstraction has 6244 states and 6543 transitions. [2023-12-22 12:30:19,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 113.63636363636364) internal successors, (1250), 10 states have internal predecessors, (1250), 0 states have call successors, (0), 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 12:30:19,329 INFO L276 IsEmpty]: Start isEmpty. Operand 6244 states and 6543 transitions. [2023-12-22 12:30:19,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1137 [2023-12-22 12:30:19,341 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:30:19,342 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 6, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2023-12-22 12:30:19,352 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 12:30:19,551 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 12:30:19,552 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:30:19,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:30:19,553 INFO L85 PathProgramCache]: Analyzing trace with hash 797754200, now seen corresponding path program 1 times [2023-12-22 12:30:19,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:30:19,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080602119] [2023-12-22 12:30:19,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:30:19,557 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 12:30:19,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:30:19,558 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 12:30:19,565 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 12:30:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:30:19,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:30:19,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:30:20,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4081 backedges. 1891 proven. 0 refuted. 0 times theorem prover too weak. 2190 trivial. 0 not checked. [2023-12-22 12:30:20,500 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:30:20,500 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:30:20,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2080602119] [2023-12-22 12:30:20,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2080602119] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:30:20,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:30:20,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:30:20,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871025041] [2023-12-22 12:30:20,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:30:20,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:30:20,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:30:20,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:30:20,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:30:20,502 INFO L87 Difference]: Start difference. First operand 6244 states and 6543 transitions. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 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 12:30:24,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:30:24,262 INFO L93 Difference]: Finished difference Result 7314 states and 7721 transitions. [2023-12-22 12:30:24,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:30:24,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 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 1136 [2023-12-22 12:30:24,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:30:24,273 INFO L225 Difference]: With dead ends: 7314 [2023-12-22 12:30:24,274 INFO L226 Difference]: Without dead ends: 7312 [2023-12-22 12:30:24,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1135 GetRequests, 1134 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 12:30:24,276 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 45 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-22 12:30:24,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 236 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-22 12:30:24,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7312 states. [2023-12-22 12:30:24,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7312 to 6956. [2023-12-22 12:30:24,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6956 states, 6955 states have (on average 1.0565061107117182) internal successors, (7348), 6955 states have internal predecessors, (7348), 0 states have call successors, (0), 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 12:30:24,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6956 states to 6956 states and 7348 transitions. [2023-12-22 12:30:24,367 INFO L78 Accepts]: Start accepts. Automaton has 6956 states and 7348 transitions. Word has length 1136 [2023-12-22 12:30:24,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:30:24,367 INFO L495 AbstractCegarLoop]: Abstraction has 6956 states and 7348 transitions. [2023-12-22 12:30:24,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 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 12:30:24,368 INFO L276 IsEmpty]: Start isEmpty. Operand 6956 states and 7348 transitions. [2023-12-22 12:30:24,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1414 [2023-12-22 12:30:24,383 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:30:24,384 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:30:24,393 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 (18)] Forceful destruction successful, exit code 0 [2023-12-22 12:30:24,594 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 12:30:24,594 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:30:24,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:30:24,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1545819942, now seen corresponding path program 1 times [2023-12-22 12:30:24,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:30:24,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665174146] [2023-12-22 12:30:24,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:30:24,599 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 12:30:24,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:30:24,626 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 12:30:24,644 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 12:30:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:30:25,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 1540 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:30:25,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:30:30,395 INFO L134 CoverageAnalysis]: Checked inductivity of 6219 backedges. 440 proven. 5195 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2023-12-22 12:30:30,395 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:30:33,777 INFO L134 CoverageAnalysis]: Checked inductivity of 6219 backedges. 2566 proven. 48 refuted. 0 times theorem prover too weak. 3605 trivial. 0 not checked. [2023-12-22 12:30:33,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:30:33,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665174146] [2023-12-22 12:30:33,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [665174146] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:30:33,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:30:33,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4] total 11 [2023-12-22 12:30:33,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787839115] [2023-12-22 12:30:33,778 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:30:33,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-22 12:30:33,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:30:33,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-22 12:30:33,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:30:33,780 INFO L87 Difference]: Start difference. First operand 6956 states and 7348 transitions. Second operand has 12 states, 12 states have (on average 108.16666666666667) internal successors, (1298), 11 states have internal predecessors, (1298), 0 states have call successors, (0), 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 12:30:47,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:30:47,298 INFO L93 Difference]: Finished difference Result 15490 states and 16494 transitions. [2023-12-22 12:30:47,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 12:30:47,310 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 108.16666666666667) internal successors, (1298), 11 states have internal predecessors, (1298), 0 states have call successors, (0), 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 1413 [2023-12-22 12:30:47,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:30:47,323 INFO L225 Difference]: With dead ends: 15490 [2023-12-22 12:30:47,324 INFO L226 Difference]: Without dead ends: 9526 [2023-12-22 12:30:47,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2825 GetRequests, 2814 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-12-22 12:30:47,330 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 178 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 6891 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 6957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 6891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2023-12-22 12:30:47,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 152 Invalid, 6957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 6891 Invalid, 0 Unknown, 0 Unchecked, 13.3s Time] [2023-12-22 12:30:47,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9526 states. [2023-12-22 12:30:47,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9526 to 6956. [2023-12-22 12:30:47,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6956 states, 6955 states have (on average 1.055355859094177) internal successors, (7340), 6955 states have internal predecessors, (7340), 0 states have call successors, (0), 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 12:30:47,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6956 states to 6956 states and 7340 transitions. [2023-12-22 12:30:47,416 INFO L78 Accepts]: Start accepts. Automaton has 6956 states and 7340 transitions. Word has length 1413 [2023-12-22 12:30:47,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:30:47,416 INFO L495 AbstractCegarLoop]: Abstraction has 6956 states and 7340 transitions. [2023-12-22 12:30:47,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 108.16666666666667) internal successors, (1298), 11 states have internal predecessors, (1298), 0 states have call successors, (0), 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 12:30:47,417 INFO L276 IsEmpty]: Start isEmpty. Operand 6956 states and 7340 transitions. [2023-12-22 12:30:47,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1422 [2023-12-22 12:30:47,430 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:30:47,431 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 8, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:30:47,439 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 12:30:47,639 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 12:30:47,640 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:30:47,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:30:47,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1267659538, now seen corresponding path program 1 times [2023-12-22 12:30:47,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:30:47,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571927166] [2023-12-22 12:30:47,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:30:47,644 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 12:30:47,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:30:47,645 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 12:30:47,672 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 12:30:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:30:48,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 1548 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:30:48,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:30:53,912 INFO L134 CoverageAnalysis]: Checked inductivity of 6280 backedges. 396 proven. 5292 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2023-12-22 12:30:53,913 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:31:17,981 INFO L134 CoverageAnalysis]: Checked inductivity of 6280 backedges. 2667 proven. 0 refuted. 0 times theorem prover too weak. 3613 trivial. 0 not checked. [2023-12-22 12:31:17,981 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:31:17,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571927166] [2023-12-22 12:31:17,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571927166] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 12:31:17,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 12:31:17,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-22 12:31:17,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686637926] [2023-12-22 12:31:17,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:31:17,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 12:31:17,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:31:17,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 12:31:17,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:31:17,993 INFO L87 Difference]: Start difference. First operand 6956 states and 7340 transitions. Second operand has 5 states, 5 states have (on average 85.6) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 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 12:31:24,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:31:37,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:31:41,784 WARN L539 Checker$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 12:31:44,084 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 12:31:44,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:31:44,147 INFO L93 Difference]: Finished difference Result 13434 states and 14213 transitions. [2023-12-22 12:31:44,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 12:31:44,148 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.6) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 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 1421 [2023-12-22 12:31:44,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:31:44,173 INFO L225 Difference]: With dead ends: 13434 [2023-12-22 12:31:44,173 INFO L226 Difference]: Without dead ends: 7490 [2023-12-22 12:31:44,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2840 GetRequests, 2830 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:31:44,179 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 37 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.0s IncrementalHoareTripleChecker+Time [2023-12-22 12:31:44,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 17 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 846 Invalid, 0 Unknown, 0 Unchecked, 26.0s Time] [2023-12-22 12:31:44,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7490 states. [2023-12-22 12:31:44,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7490 to 6956. [2023-12-22 12:31:44,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6956 states, 6955 states have (on average 1.0542056074766355) internal successors, (7332), 6955 states have internal predecessors, (7332), 0 states have call successors, (0), 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 12:31:44,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6956 states to 6956 states and 7332 transitions. [2023-12-22 12:31:44,378 INFO L78 Accepts]: Start accepts. Automaton has 6956 states and 7332 transitions. Word has length 1421 [2023-12-22 12:31:44,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:31:44,379 INFO L495 AbstractCegarLoop]: Abstraction has 6956 states and 7332 transitions. [2023-12-22 12:31:44,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.6) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 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 12:31:44,379 INFO L276 IsEmpty]: Start isEmpty. Operand 6956 states and 7332 transitions. [2023-12-22 12:31:44,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1489 [2023-12-22 12:31:44,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:31:44,432 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 8, 7, 7, 7, 7, 7, 7, 7, 6, 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, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:31:44,443 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 12:31:44,633 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 12:31:44,633 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:31:44,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:31:44,634 INFO L85 PathProgramCache]: Analyzing trace with hash 2003897488, now seen corresponding path program 1 times [2023-12-22 12:31:44,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:31:44,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775356265] [2023-12-22 12:31:44,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:31:44,639 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 12:31:44,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:31:44,640 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:31:44,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-22 12:31:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:31:45,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 1615 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:31:45,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:31:50,589 INFO L134 CoverageAnalysis]: Checked inductivity of 6522 backedges. 429 proven. 5434 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2023-12-22 12:31:50,590 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:32:42,370 INFO L134 CoverageAnalysis]: Checked inductivity of 6522 backedges. 2792 proven. 50 refuted. 0 times theorem prover too weak. 3680 trivial. 0 not checked. [2023-12-22 12:32:42,370 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:32:42,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775356265] [2023-12-22 12:32:42,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [775356265] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:32:42,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:32:42,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4] total 11 [2023-12-22 12:32:42,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363459584] [2023-12-22 12:32:42,371 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:32:42,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-22 12:32:42,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:32:42,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-22 12:32:42,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:32:42,373 INFO L87 Difference]: Start difference. First operand 6956 states and 7332 transitions. Second operand has 12 states, 12 states have (on average 108.25) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 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 12:33:02,383 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 12:33:04,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:33:07,809 WARN L539 Checker$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 12:33:10,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:33:14,315 WARN L539 Checker$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 12:33:18,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:33:20,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:33:20,809 INFO L93 Difference]: Finished difference Result 14958 states and 15835 transitions. [2023-12-22 12:33:20,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 12:33:20,810 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 108.25) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 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 1488 [2023-12-22 12:33:20,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:33:20,817 INFO L225 Difference]: With dead ends: 14958 [2023-12-22 12:33:20,818 INFO L226 Difference]: Without dead ends: 8992 [2023-12-22 12:33:20,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2975 GetRequests, 2964 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-12-22 12:33:20,823 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 184 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 8605 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 8662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 8605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.7s IncrementalHoareTripleChecker+Time [2023-12-22 12:33:20,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 183 Invalid, 8662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 8605 Invalid, 0 Unknown, 0 Unchecked, 37.7s Time] [2023-12-22 12:33:20,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8992 states. [2023-12-22 12:33:20,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8992 to 6956. [2023-12-22 12:33:20,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6956 states, 6955 states have (on average 1.0530553558590943) internal successors, (7324), 6955 states have internal predecessors, (7324), 0 states have call successors, (0), 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 12:33:20,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6956 states to 6956 states and 7324 transitions. [2023-12-22 12:33:20,925 INFO L78 Accepts]: Start accepts. Automaton has 6956 states and 7324 transitions. Word has length 1488 [2023-12-22 12:33:20,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:33:20,926 INFO L495 AbstractCegarLoop]: Abstraction has 6956 states and 7324 transitions. [2023-12-22 12:33:20,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 108.25) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 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 12:33:20,926 INFO L276 IsEmpty]: Start isEmpty. Operand 6956 states and 7324 transitions. [2023-12-22 12:33:20,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1514 [2023-12-22 12:33:20,941 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:33:20,943 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 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, 8, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:33:20,951 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 (21)] Ended with exit code 0 [2023-12-22 12:33:21,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:33:21,152 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:33:21,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:33:21,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1740277696, now seen corresponding path program 1 times [2023-12-22 12:33:21,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:33:21,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725471856] [2023-12-22 12:33:21,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:33:21,157 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 12:33:21,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:33:21,159 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:33:21,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-22 12:33:21,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:33:21,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 1649 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:33:21,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:33:28,048 INFO L134 CoverageAnalysis]: Checked inductivity of 7314 backedges. 0 proven. 6699 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2023-12-22 12:33:28,048 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:33:33,007 INFO L134 CoverageAnalysis]: Checked inductivity of 7314 backedges. 2940 proven. 738 refuted. 0 times theorem prover too weak. 3636 trivial. 0 not checked. [2023-12-22 12:33:33,007 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:33:33,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [725471856] [2023-12-22 12:33:33,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [725471856] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:33:33,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:33:33,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 12 [2023-12-22 12:33:33,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011220843] [2023-12-22 12:33:33,008 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:33:33,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-22 12:33:33,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:33:33,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-22 12:33:33,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-12-22 12:33:33,010 INFO L87 Difference]: Start difference. First operand 6956 states and 7324 transitions. Second operand has 13 states, 13 states have (on average 110.38461538461539) internal successors, (1435), 12 states have internal predecessors, (1435), 0 states have call successors, (0), 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 12:33:46,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:33:46,647 INFO L93 Difference]: Finished difference Result 14969 states and 15782 transitions. [2023-12-22 12:33:46,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 12:33:46,648 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 110.38461538461539) internal successors, (1435), 12 states have internal predecessors, (1435), 0 states have call successors, (0), 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 1513 [2023-12-22 12:33:46,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:33:46,649 INFO L225 Difference]: With dead ends: 14969 [2023-12-22 12:33:46,649 INFO L226 Difference]: Without dead ends: 0 [2023-12-22 12:33:46,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3036 GetRequests, 3013 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=120, Invalid=480, Unknown=0, NotChecked=0, Total=600 [2023-12-22 12:33:46,656 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 1183 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 9589 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 9737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 9589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2023-12-22 12:33:46,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 174 Invalid, 9737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 9589 Invalid, 0 Unknown, 0 Unchecked, 13.0s Time] [2023-12-22 12:33:46,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-22 12:33:46,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-22 12:33:46,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:33:46,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-22 12:33:46,657 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1513 [2023-12-22 12:33:46,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:33:46,657 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-22 12:33:46,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.38461538461539) internal successors, (1435), 12 states have internal predecessors, (1435), 0 states have call successors, (0), 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 12:33:46,657 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-22 12:33:46,657 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-22 12:33:46,659 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 12:33:46,671 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 (22)] Ended with exit code 0 [2023-12-22 12:33:46,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:33:46,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-22 12:33:56,757 WARN L293 SmtUtils]: Spent 9.18s on a formula simplification. DAG size of input: 289 DAG size of output: 45 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-22 12:33:56,760 INFO L899 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2023-12-22 12:33:56,760 INFO L899 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2023-12-22 12:33:56,760 INFO L899 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2023-12-22 12:33:56,760 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2023-12-22 12:33:56,760 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2023-12-22 12:33:56,760 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,760 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,760 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,760 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2023-12-22 12:33:56,760 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2023-12-22 12:33:56,760 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2023-12-22 12:33:56,760 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2023-12-22 12:33:56,760 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2023-12-22 12:33:56,760 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,760 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,760 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,761 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2023-12-22 12:33:56,761 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2023-12-22 12:33:56,761 INFO L899 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2023-12-22 12:33:56,761 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2023-12-22 12:33:56,761 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2023-12-22 12:33:56,761 INFO L899 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2023-12-22 12:33:56,761 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,761 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,761 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,761 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2023-12-22 12:33:56,761 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2023-12-22 12:33:56,761 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2023-12-22 12:33:56,761 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2023-12-22 12:33:56,761 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,761 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,761 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,761 INFO L899 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2023-12-22 12:33:56,761 INFO L899 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2023-12-22 12:33:56,761 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2023-12-22 12:33:56,761 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2023-12-22 12:33:56,761 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2023-12-22 12:33:56,761 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,762 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 212) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2023-12-22 12:33:56,763 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,764 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,765 INFO L899 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L884(lines 884 900) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2023-12-22 12:33:56,766 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,767 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,767 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2023-12-22 12:33:56,767 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,767 INFO L899 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2023-12-22 12:33:56,767 INFO L895 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (= (_ bv8 32) ~a15~0)) (.cse1 (not (bvslt (_ bv4294967253 32) (bvadd (_ bv4294367247 32) ~a12~0)))) (.cse2 (or (not (= (_ bv8 32) ~a21~0)) (not (= (_ bv6 32) ~a15~0)))) (.cse3 (= (_ bv1 32) ~a24~0)) (.cse4 (bvslt (_ bv11 32) ~a12~0))) (or (and (= (bvadd (_ bv49 32) ~a12~0) (_ bv0 32)) .cse0) (and .cse1 .cse2 (not (bvslt (_ bv4294967253 32) ~a12~0)) (or (not .cse3) (not .cse0))) (and (= (_ bv5 32) ~a15~0) (= (_ bv6 32) ~a21~0) .cse3 (not .cse4)) (and .cse1 .cse2 (not (bvsle ~a12~0 (_ bv4294967253 32))) .cse3) (and (not (bvslt (_ bv80 32) ~a12~0)) .cse3 .cse4))) [2023-12-22 12:33:56,767 INFO L899 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2023-12-22 12:33:56,767 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2023-12-22 12:33:56,767 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,767 INFO L899 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2023-12-22 12:33:56,767 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2023-12-22 12:33:56,767 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2023-12-22 12:33:56,767 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2023-12-22 12:33:56,767 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,767 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,768 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:33:56,768 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2023-12-22 12:33:56,791 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:33:56,804 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 12:33:56,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 12:33:56 BoogieIcfgContainer [2023-12-22 12:33:56,821 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 12:33:56,822 INFO L158 Benchmark]: Toolchain (without parser) took 621229.00ms. Allocated memory was 231.7MB in the beginning and 597.7MB in the end (delta: 366.0MB). Free memory was 185.0MB in the beginning and 521.4MB in the end (delta: -336.4MB). Peak memory consumption was 392.1MB. Max. memory is 8.0GB. [2023-12-22 12:33:56,822 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 172.0MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 12:33:56,823 INFO L158 Benchmark]: CACSL2BoogieTranslator took 516.74ms. Allocated memory is still 231.7MB. Free memory was 185.0MB in the beginning and 147.2MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2023-12-22 12:33:56,824 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.90ms. Allocated memory is still 231.7MB. Free memory was 147.2MB in the beginning and 140.4MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-22 12:33:56,824 INFO L158 Benchmark]: Boogie Preprocessor took 122.83ms. Allocated memory is still 231.7MB. Free memory was 140.4MB in the beginning and 133.6MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-22 12:33:56,825 INFO L158 Benchmark]: RCFGBuilder took 3821.73ms. Allocated memory is still 231.7MB. Free memory was 133.6MB in the beginning and 180.2MB in the end (delta: -46.6MB). Peak memory consumption was 55.6MB. Max. memory is 8.0GB. [2023-12-22 12:33:56,825 INFO L158 Benchmark]: TraceAbstraction took 616664.17ms. Allocated memory was 231.7MB in the beginning and 597.7MB in the end (delta: 366.0MB). Free memory was 179.1MB in the beginning and 521.4MB in the end (delta: -342.3MB). Peak memory consumption was 384.7MB. Max. memory is 8.0GB. [2023-12-22 12:33:56,827 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 172.0MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 516.74ms. Allocated memory is still 231.7MB. Free memory was 185.0MB in the beginning and 147.2MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 98.90ms. Allocated memory is still 231.7MB. Free memory was 147.2MB in the beginning and 140.4MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 122.83ms. Allocated memory is still 231.7MB. Free memory was 140.4MB in the beginning and 133.6MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 3821.73ms. Allocated memory is still 231.7MB. Free memory was 133.6MB in the beginning and 180.2MB in the end (delta: -46.6MB). Peak memory consumption was 55.6MB. Max. memory is 8.0GB. * TraceAbstraction took 616664.17ms. Allocated memory was 231.7MB in the beginning and 597.7MB in the end (delta: 366.0MB). Free memory was 179.1MB in the beginning and 521.4MB in the end (delta: -342.3MB). Peak memory consumption was 384.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 212]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 183 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 616.6s, OverallIterations: 21, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 282.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6340 SdHoareTripleChecker+Valid, 276.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6340 mSDsluCounter, 2453 SdHoareTripleChecker+Invalid, 249.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 791 mSDsCounter, 1903 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55097 IncrementalHoareTripleChecker+Invalid, 57000 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1903 mSolverCounterUnsat, 1662 mSDtfsCounter, 55097 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26346 GetRequests, 26177 SyntacticMatches, 2 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 30.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6956occurred in iteration=17, InterpolantAutomatonStates: 165, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 21 MinimizatonAttempts, 8290 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 68 NumberOfFragments, 87 HoareAnnotationTreeSize, 1 FormulaSimplifications, 32215 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 1 FormulaSimplificationsInter, 5711 FormulaSimplificationTreeSizeReductionInter, 9.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 313.7s InterpolantComputationTime, 15217 NumberOfCodeBlocks, 15217 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 26312 ConstructedInterpolants, 0 QuantifiedInterpolants, 205920 SizeOfPredicates, 20 NumberOfNonLiveVariables, 16857 ConjunctsInSsa, 137 ConjunctsInUnsatCore, 33 InterpolantComputations, 13 PerfectInterpolantSequences, 54494/88414 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((49 + a12) % 4294967296) == 0) && (8 == a15)) || (((!((-43 < ((-600049 + a12) % 4294967296))) && (!((8 == a21)) || !((6 == a15)))) && !((-43 < a12))) && (!((1 == a24)) || !((8 == a15))))) || ((((5 == a15) && (6 == a21)) && (1 == a24)) && !((11 < a12)))) || (((!((-43 < ((-600049 + a12) % 4294967296))) && (!((8 == a21)) || !((6 == a15)))) && !((a12 <= -43))) && (1 == a24))) || ((!((80 < a12)) && (1 == a24)) && (11 < a12))) RESULT: Ultimate proved your program to be correct! [2023-12-22 12:33:56,865 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...