/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/combinations/Problem05_label49+token_ring.08.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 22:16:54,121 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 22:16:54,203 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-21 22:16:54,211 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 22:16:54,211 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 22:16:54,236 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 22:16:54,237 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 22:16:54,237 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 22:16:54,238 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 22:16:54,241 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 22:16:54,241 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 22:16:54,242 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 22:16:54,243 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 22:16:54,244 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 22:16:54,244 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 22:16:54,244 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 22:16:54,245 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 22:16:54,245 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 22:16:54,245 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 22:16:54,245 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 22:16:54,246 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 22:16:54,246 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 22:16:54,246 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 22:16:54,246 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-21 22:16:54,247 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-21 22:16:54,247 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 22:16:54,247 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-21 22:16:54,247 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 22:16:54,248 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 22:16:54,248 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 22:16:54,249 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 22:16:54,249 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 22:16:54,249 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 22:16:54,249 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 22:16:54,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 22:16:54,250 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 22:16:54,250 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 22:16:54,250 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 22:16:54,250 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-21 22:16:54,250 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-21 22:16:54,250 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 22:16:54,251 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 22:16:54,251 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 22:16:54,251 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 22:16:54,251 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 22:16:54,251 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-21 22:16:54,252 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-21 22:16:54,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 22:16:54,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 22:16:54,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 22:16:54,514 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 22:16:54,515 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 22:16:54,517 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label49+token_ring.08.cil-1.c [2023-12-21 22:16:55,713 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 22:16:56,351 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 22:16:56,352 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.08.cil-1.c [2023-12-21 22:16:56,420 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8537b57b4/f3f5b3d3d2584ef9a25003905400e00f/FLAGb56560c9a [2023-12-21 22:16:56,430 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8537b57b4/f3f5b3d3d2584ef9a25003905400e00f [2023-12-21 22:16:56,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 22:16:56,433 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 22:16:56,434 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 22:16:56,434 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 22:16:56,439 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 22:16:56,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:16:56" (1/1) ... [2023-12-21 22:16:56,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a7dd89f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:16:56, skipping insertion in model container [2023-12-21 22:16:56,441 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:16:56" (1/1) ... [2023-12-21 22:16:56,645 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 22:16:58,151 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.08.cil-1.c[380593,380606] [2023-12-21 22:16:58,182 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.08.cil-1.c[383339,383352] [2023-12-21 22:16:58,344 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 22:16:58,355 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 22:16:59,078 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.08.cil-1.c[380593,380606] [2023-12-21 22:16:59,082 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.08.cil-1.c[383339,383352] [2023-12-21 22:16:59,106 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 22:16:59,162 INFO L206 MainTranslator]: Completed translation [2023-12-21 22:16:59,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:16:59 WrapperNode [2023-12-21 22:16:59,164 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 22:16:59,165 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 22:16:59,165 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 22:16:59,165 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 22:16:59,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:16:59" (1/1) ... [2023-12-21 22:16:59,257 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:16:59" (1/1) ... [2023-12-21 22:16:59,538 INFO L138 Inliner]: procedures = 61, calls = 65, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 12959 [2023-12-21 22:16:59,538 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 22:16:59,539 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 22:16:59,539 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 22:16:59,539 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 22:16:59,680 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:16:59" (1/1) ... [2023-12-21 22:16:59,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:16:59" (1/1) ... [2023-12-21 22:16:59,812 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:16:59" (1/1) ... [2023-12-21 22:16:59,920 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-21 22:16:59,920 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:16:59" (1/1) ... [2023-12-21 22:16:59,921 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:16:59" (1/1) ... [2023-12-21 22:17:00,217 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:16:59" (1/1) ... [2023-12-21 22:17:00,288 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:16:59" (1/1) ... [2023-12-21 22:17:00,317 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:16:59" (1/1) ... [2023-12-21 22:17:00,339 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:16:59" (1/1) ... [2023-12-21 22:17:00,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 22:17:00,412 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 22:17:00,413 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 22:17:00,413 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 22:17:00,413 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:16:59" (1/1) ... [2023-12-21 22:17:00,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 22:17:00,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 22:17:00,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-21 22:17:00,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-21 22:17:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 22:17:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-21 22:17:00,514 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-21 22:17:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-21 22:17:00,514 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-21 22:17:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-21 22:17:00,514 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-21 22:17:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-21 22:17:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-21 22:17:00,515 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-21 22:17:00,515 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-21 22:17:00,515 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-21 22:17:00,515 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-21 22:17:00,515 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-21 22:17:00,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 22:17:00,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 22:17:00,654 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 22:17:00,656 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 22:17:09,543 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 22:17:09,629 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 22:17:09,629 INFO L309 CfgBuilder]: Removed 12 assume(true) statements. [2023-12-21 22:17:09,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:17:09 BoogieIcfgContainer [2023-12-21 22:17:09,630 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 22:17:09,632 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 22:17:09,632 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 22:17:09,635 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 22:17:09,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 10:16:56" (1/3) ... [2023-12-21 22:17:09,636 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b3fc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:17:09, skipping insertion in model container [2023-12-21 22:17:09,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:16:59" (2/3) ... [2023-12-21 22:17:09,636 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b3fc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:17:09, skipping insertion in model container [2023-12-21 22:17:09,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:17:09" (3/3) ... [2023-12-21 22:17:09,637 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.08.cil-1.c [2023-12-21 22:17:09,651 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 22:17:09,652 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-21 22:17:09,736 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 22:17:09,741 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;@2bd148fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 22:17:09,741 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-21 22:17:09,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 2379 states, 2348 states have (on average 1.8794718909710393) internal successors, (4413), 2351 states have internal predecessors, (4413), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-21 22:17:09,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:09,777 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:09,778 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:09,779 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:09,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:09,786 INFO L85 PathProgramCache]: Analyzing trace with hash 854879499, now seen corresponding path program 1 times [2023-12-21 22:17:09,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:09,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785506698] [2023-12-21 22:17:09,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:09,801 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:09,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:09,803 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:09,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-21 22:17:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:10,019 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:17:10,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:10,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:10,083 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:10,083 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:10,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785506698] [2023-12-21 22:17:10,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785506698] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:10,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:10,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:17:10,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894658680] [2023-12-21 22:17:10,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:10,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:17:10,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:10,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:17:10,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:10,121 INFO L87 Difference]: Start difference. First operand has 2379 states, 2348 states have (on average 1.8794718909710393) internal successors, (4413), 2351 states have internal predecessors, (4413), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:10,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:10,316 INFO L93 Difference]: Finished difference Result 4754 states and 8905 transitions. [2023-12-21 22:17:10,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:17:10,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:10,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:10,338 INFO L225 Difference]: With dead ends: 4754 [2023-12-21 22:17:10,338 INFO L226 Difference]: Without dead ends: 2375 [2023-12-21 22:17:10,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:10,350 INFO L413 NwaCegarLoop]: 4335 mSDtfsCounter, 404 mSDsluCounter, 3959 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 8294 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:10,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 8294 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 22:17:10,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2023-12-21 22:17:10,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 2375. [2023-12-21 22:17:10,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2375 states, 2345 states have (on average 1.8426439232409382) internal successors, (4321), 2347 states have internal predecessors, (4321), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-21 22:17:10,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2375 states to 2375 states and 4365 transitions. [2023-12-21 22:17:10,463 INFO L78 Accepts]: Start accepts. Automaton has 2375 states and 4365 transitions. Word has length 121 [2023-12-21 22:17:10,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:10,465 INFO L495 AbstractCegarLoop]: Abstraction has 2375 states and 4365 transitions. [2023-12-21 22:17:10,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:10,466 INFO L276 IsEmpty]: Start isEmpty. Operand 2375 states and 4365 transitions. [2023-12-21 22:17:10,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:10,471 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:10,474 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:10,479 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 (2)] Ended with exit code 0 [2023-12-21 22:17:10,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:10,677 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:10,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:10,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1147006771, now seen corresponding path program 1 times [2023-12-21 22:17:10,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:10,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787874882] [2023-12-21 22:17:10,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:10,679 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:10,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:10,680 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:10,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-21 22:17:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:10,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:10,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:10,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:10,956 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:10,956 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:10,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787874882] [2023-12-21 22:17:10,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787874882] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:10,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:10,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:10,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922223591] [2023-12-21 22:17:10,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:10,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:10,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:10,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:10,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:10,964 INFO L87 Difference]: Start difference. First operand 2375 states and 4365 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:11,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:11,779 INFO L93 Difference]: Finished difference Result 2888 states and 5198 transitions. [2023-12-21 22:17:11,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 22:17:11,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:11,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:11,792 INFO L225 Difference]: With dead ends: 2888 [2023-12-21 22:17:11,793 INFO L226 Difference]: Without dead ends: 2648 [2023-12-21 22:17:11,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:11,795 INFO L413 NwaCegarLoop]: 4254 mSDtfsCounter, 4726 mSDsluCounter, 8656 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4742 SdHoareTripleChecker+Valid, 12910 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:11,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4742 Valid, 12910 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 22:17:11,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2648 states. [2023-12-21 22:17:11,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2648 to 2627. [2023-12-21 22:17:11,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2573 states have (on average 1.8239409249902838) internal successors, (4693), 2576 states have internal predecessors, (4693), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-21 22:17:11,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 4772 transitions. [2023-12-21 22:17:11,874 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 4772 transitions. Word has length 121 [2023-12-21 22:17:11,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:11,874 INFO L495 AbstractCegarLoop]: Abstraction has 2627 states and 4772 transitions. [2023-12-21 22:17:11,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:11,875 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 4772 transitions. [2023-12-21 22:17:11,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:11,883 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:11,883 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:11,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:12,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:12,089 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:12,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:12,090 INFO L85 PathProgramCache]: Analyzing trace with hash -601718259, now seen corresponding path program 1 times [2023-12-21 22:17:12,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:12,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613913272] [2023-12-21 22:17:12,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:12,091 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:12,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:12,092 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:12,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-21 22:17:12,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:12,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:12,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:12,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:12,330 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:12,330 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:12,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613913272] [2023-12-21 22:17:12,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613913272] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:12,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:12,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:12,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554572369] [2023-12-21 22:17:12,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:12,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:12,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:12,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:12,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:12,333 INFO L87 Difference]: Start difference. First operand 2627 states and 4772 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:12,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:12,813 INFO L93 Difference]: Finished difference Result 3119 states and 5569 transitions. [2023-12-21 22:17:12,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:12,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:12,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:12,825 INFO L225 Difference]: With dead ends: 3119 [2023-12-21 22:17:12,826 INFO L226 Difference]: Without dead ends: 2627 [2023-12-21 22:17:12,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:12,829 INFO L413 NwaCegarLoop]: 4210 mSDtfsCounter, 4499 mSDsluCounter, 8308 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4515 SdHoareTripleChecker+Valid, 12518 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:12,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4515 Valid, 12518 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:12,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2627 states. [2023-12-21 22:17:12,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2627 to 2627. [2023-12-21 22:17:12,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2573 states have (on average 1.821220365332297) internal successors, (4686), 2576 states have internal predecessors, (4686), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-21 22:17:12,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 4765 transitions. [2023-12-21 22:17:12,909 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 4765 transitions. Word has length 121 [2023-12-21 22:17:12,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:12,909 INFO L495 AbstractCegarLoop]: Abstraction has 2627 states and 4765 transitions. [2023-12-21 22:17:12,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:12,910 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 4765 transitions. [2023-12-21 22:17:12,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:12,911 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:12,911 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:12,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:13,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:13,114 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:13,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:13,114 INFO L85 PathProgramCache]: Analyzing trace with hash -584128307, now seen corresponding path program 1 times [2023-12-21 22:17:13,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:13,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440334333] [2023-12-21 22:17:13,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:13,115 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:13,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:13,116 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:13,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-21 22:17:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:13,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:13,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:13,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:13,344 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:13,345 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:13,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440334333] [2023-12-21 22:17:13,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440334333] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:13,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:13,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:13,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813488181] [2023-12-21 22:17:13,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:13,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:13,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:13,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:13,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:13,348 INFO L87 Difference]: Start difference. First operand 2627 states and 4765 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:13,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:13,833 INFO L93 Difference]: Finished difference Result 3119 states and 5555 transitions. [2023-12-21 22:17:13,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:13,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:13,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:13,846 INFO L225 Difference]: With dead ends: 3119 [2023-12-21 22:17:13,846 INFO L226 Difference]: Without dead ends: 2627 [2023-12-21 22:17:13,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:13,853 INFO L413 NwaCegarLoop]: 4207 mSDtfsCounter, 4493 mSDsluCounter, 8304 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4509 SdHoareTripleChecker+Valid, 12511 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:13,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4509 Valid, 12511 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 22:17:13,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2627 states. [2023-12-21 22:17:13,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2627 to 2627. [2023-12-21 22:17:13,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2573 states have (on average 1.8184998056743102) internal successors, (4679), 2576 states have internal predecessors, (4679), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-21 22:17:13,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 4758 transitions. [2023-12-21 22:17:13,946 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 4758 transitions. Word has length 121 [2023-12-21 22:17:13,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:13,946 INFO L495 AbstractCegarLoop]: Abstraction has 2627 states and 4758 transitions. [2023-12-21 22:17:13,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:13,947 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 4758 transitions. [2023-12-21 22:17:13,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:13,948 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:13,948 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:13,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:14,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:14,158 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:14,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:14,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1844130315, now seen corresponding path program 1 times [2023-12-21 22:17:14,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:14,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1676118174] [2023-12-21 22:17:14,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:14,159 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:14,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:14,160 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:14,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-21 22:17:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:14,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:14,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:14,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:14,368 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:14,369 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:14,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1676118174] [2023-12-21 22:17:14,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1676118174] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:14,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:14,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:14,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201717336] [2023-12-21 22:17:14,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:14,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:14,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:14,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:14,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:14,371 INFO L87 Difference]: Start difference. First operand 2627 states and 4758 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:14,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:14,831 INFO L93 Difference]: Finished difference Result 3119 states and 5541 transitions. [2023-12-21 22:17:14,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:14,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:14,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:14,842 INFO L225 Difference]: With dead ends: 3119 [2023-12-21 22:17:14,842 INFO L226 Difference]: Without dead ends: 2627 [2023-12-21 22:17:14,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:14,846 INFO L413 NwaCegarLoop]: 4204 mSDtfsCounter, 4487 mSDsluCounter, 8300 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4503 SdHoareTripleChecker+Valid, 12504 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:14,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4503 Valid, 12504 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:14,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2627 states. [2023-12-21 22:17:14,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2627 to 2627. [2023-12-21 22:17:14,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2573 states have (on average 1.8157792460163233) internal successors, (4672), 2576 states have internal predecessors, (4672), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-21 22:17:14,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 4751 transitions. [2023-12-21 22:17:14,921 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 4751 transitions. Word has length 121 [2023-12-21 22:17:14,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:14,921 INFO L495 AbstractCegarLoop]: Abstraction has 2627 states and 4751 transitions. [2023-12-21 22:17:14,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:14,922 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 4751 transitions. [2023-12-21 22:17:14,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:14,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:14,923 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:14,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:15,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:15,129 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:15,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:15,130 INFO L85 PathProgramCache]: Analyzing trace with hash 811747531, now seen corresponding path program 1 times [2023-12-21 22:17:15,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:15,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1241608646] [2023-12-21 22:17:15,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:15,131 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:15,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:15,132 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:15,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-21 22:17:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:15,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:15,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:15,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:15,339 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:15,339 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:15,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1241608646] [2023-12-21 22:17:15,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1241608646] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:15,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:15,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:15,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775301824] [2023-12-21 22:17:15,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:15,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:15,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:15,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:15,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:15,341 INFO L87 Difference]: Start difference. First operand 2627 states and 4751 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:15,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:15,793 INFO L93 Difference]: Finished difference Result 3119 states and 5527 transitions. [2023-12-21 22:17:15,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:15,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:15,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:15,805 INFO L225 Difference]: With dead ends: 3119 [2023-12-21 22:17:15,805 INFO L226 Difference]: Without dead ends: 2627 [2023-12-21 22:17:15,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:15,809 INFO L413 NwaCegarLoop]: 4201 mSDtfsCounter, 4480 mSDsluCounter, 8296 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4496 SdHoareTripleChecker+Valid, 12497 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:15,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4496 Valid, 12497 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:15,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2627 states. [2023-12-21 22:17:15,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2627 to 2627. [2023-12-21 22:17:15,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2573 states have (on average 1.8130586863583367) internal successors, (4665), 2576 states have internal predecessors, (4665), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-21 22:17:15,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 4744 transitions. [2023-12-21 22:17:15,903 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 4744 transitions. Word has length 121 [2023-12-21 22:17:15,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:15,904 INFO L495 AbstractCegarLoop]: Abstraction has 2627 states and 4744 transitions. [2023-12-21 22:17:15,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:15,905 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 4744 transitions. [2023-12-21 22:17:15,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:15,906 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:15,906 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:15,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:16,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:16,113 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:16,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:16,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1865420683, now seen corresponding path program 1 times [2023-12-21 22:17:16,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:16,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1714145954] [2023-12-21 22:17:16,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:16,114 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:16,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:16,115 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:16,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-21 22:17:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:16,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:16,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:16,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:16,314 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:16,314 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:16,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1714145954] [2023-12-21 22:17:16,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1714145954] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:16,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:16,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:16,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184974197] [2023-12-21 22:17:16,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:16,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:16,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:16,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:16,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:16,316 INFO L87 Difference]: Start difference. First operand 2627 states and 4744 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:16,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:16,739 INFO L93 Difference]: Finished difference Result 3119 states and 5513 transitions. [2023-12-21 22:17:16,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:16,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:16,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:16,751 INFO L225 Difference]: With dead ends: 3119 [2023-12-21 22:17:16,752 INFO L226 Difference]: Without dead ends: 2627 [2023-12-21 22:17:16,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:16,755 INFO L413 NwaCegarLoop]: 4198 mSDtfsCounter, 4474 mSDsluCounter, 8292 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4490 SdHoareTripleChecker+Valid, 12490 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:16,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4490 Valid, 12490 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:16,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2627 states. [2023-12-21 22:17:16,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2627 to 2627. [2023-12-21 22:17:16,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2573 states have (on average 1.8103381267003498) internal successors, (4658), 2576 states have internal predecessors, (4658), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-21 22:17:16,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 4737 transitions. [2023-12-21 22:17:16,833 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 4737 transitions. Word has length 121 [2023-12-21 22:17:16,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:16,834 INFO L495 AbstractCegarLoop]: Abstraction has 2627 states and 4737 transitions. [2023-12-21 22:17:16,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:16,834 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 4737 transitions. [2023-12-21 22:17:16,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:16,835 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:16,835 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:16,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-21 22:17:17,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:17,041 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:17,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:17,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1345220811, now seen corresponding path program 1 times [2023-12-21 22:17:17,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:17,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1700103379] [2023-12-21 22:17:17,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:17,042 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:17,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:17,043 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:17,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-21 22:17:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:17,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:17,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:17,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:17,299 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:17,299 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:17,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1700103379] [2023-12-21 22:17:17,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1700103379] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:17,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:17,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:17,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979901705] [2023-12-21 22:17:17,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:17,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:17,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:17,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:17,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:17,301 INFO L87 Difference]: Start difference. First operand 2627 states and 4737 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:17,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:17,660 INFO L93 Difference]: Finished difference Result 3119 states and 5499 transitions. [2023-12-21 22:17:17,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:17,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:17,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:17,671 INFO L225 Difference]: With dead ends: 3119 [2023-12-21 22:17:17,671 INFO L226 Difference]: Without dead ends: 2627 [2023-12-21 22:17:17,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:17,673 INFO L413 NwaCegarLoop]: 4195 mSDtfsCounter, 4468 mSDsluCounter, 8288 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4484 SdHoareTripleChecker+Valid, 12483 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:17,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4484 Valid, 12483 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:17,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2627 states. [2023-12-21 22:17:17,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2627 to 2627. [2023-12-21 22:17:17,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2573 states have (on average 1.807617567042363) internal successors, (4651), 2576 states have internal predecessors, (4651), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-21 22:17:17,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 4730 transitions. [2023-12-21 22:17:17,729 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 4730 transitions. Word has length 121 [2023-12-21 22:17:17,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:17,729 INFO L495 AbstractCegarLoop]: Abstraction has 2627 states and 4730 transitions. [2023-12-21 22:17:17,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:17,730 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 4730 transitions. [2023-12-21 22:17:17,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:17,731 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:17,731 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:17,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:17,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:17,936 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:17,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:17,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1858148469, now seen corresponding path program 1 times [2023-12-21 22:17:17,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:17,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [516037057] [2023-12-21 22:17:17,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:17,938 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:17,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:17,939 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:17,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-21 22:17:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:18,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:18,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:18,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:18,130 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:18,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:18,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [516037057] [2023-12-21 22:17:18,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [516037057] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:18,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:18,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:18,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096070486] [2023-12-21 22:17:18,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:18,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:18,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:18,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:18,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:18,132 INFO L87 Difference]: Start difference. First operand 2627 states and 4730 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:18,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:18,487 INFO L93 Difference]: Finished difference Result 3119 states and 5485 transitions. [2023-12-21 22:17:18,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:18,487 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:18,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:18,502 INFO L225 Difference]: With dead ends: 3119 [2023-12-21 22:17:18,502 INFO L226 Difference]: Without dead ends: 2627 [2023-12-21 22:17:18,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:18,505 INFO L413 NwaCegarLoop]: 4192 mSDtfsCounter, 4462 mSDsluCounter, 8284 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4478 SdHoareTripleChecker+Valid, 12476 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:18,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4478 Valid, 12476 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:18,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2627 states. [2023-12-21 22:17:18,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2627 to 2627. [2023-12-21 22:17:18,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2573 states have (on average 1.8048970073843762) internal successors, (4644), 2576 states have internal predecessors, (4644), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-21 22:17:18,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 4723 transitions. [2023-12-21 22:17:18,565 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 4723 transitions. Word has length 121 [2023-12-21 22:17:18,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:18,567 INFO L495 AbstractCegarLoop]: Abstraction has 2627 states and 4723 transitions. [2023-12-21 22:17:18,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:18,567 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 4723 transitions. [2023-12-21 22:17:18,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:18,569 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:18,569 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:18,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:18,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:18,777 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:18,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:18,778 INFO L85 PathProgramCache]: Analyzing trace with hash -991651637, now seen corresponding path program 1 times [2023-12-21 22:17:18,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:18,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489812372] [2023-12-21 22:17:18,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:18,779 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:18,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:18,784 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:18,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-21 22:17:18,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:18,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:18,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:18,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:18,960 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:18,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:18,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489812372] [2023-12-21 22:17:18,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [489812372] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:18,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:18,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:18,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772097067] [2023-12-21 22:17:18,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:18,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:18,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:18,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:18,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:18,962 INFO L87 Difference]: Start difference. First operand 2627 states and 4723 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:19,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:19,389 INFO L93 Difference]: Finished difference Result 3237 states and 5663 transitions. [2023-12-21 22:17:19,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:19,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:19,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:19,398 INFO L225 Difference]: With dead ends: 3237 [2023-12-21 22:17:19,398 INFO L226 Difference]: Without dead ends: 2745 [2023-12-21 22:17:19,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:19,402 INFO L413 NwaCegarLoop]: 4190 mSDtfsCounter, 4534 mSDsluCounter, 8280 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4550 SdHoareTripleChecker+Valid, 12470 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:19,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4550 Valid, 12470 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:19,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2745 states. [2023-12-21 22:17:19,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2745 to 2745. [2023-12-21 22:17:19,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2745 states, 2685 states have (on average 1.7880819366852887) internal successors, (4801), 2688 states have internal predecessors, (4801), 41 states have call successors, (41), 16 states have call predecessors, (41), 17 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-21 22:17:19,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2745 states to 2745 states and 4884 transitions. [2023-12-21 22:17:19,465 INFO L78 Accepts]: Start accepts. Automaton has 2745 states and 4884 transitions. Word has length 121 [2023-12-21 22:17:19,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:19,466 INFO L495 AbstractCegarLoop]: Abstraction has 2745 states and 4884 transitions. [2023-12-21 22:17:19,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:19,466 INFO L276 IsEmpty]: Start isEmpty. Operand 2745 states and 4884 transitions. [2023-12-21 22:17:19,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:19,467 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:19,467 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:19,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:19,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:19,673 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:19,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:19,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1563055510, now seen corresponding path program 1 times [2023-12-21 22:17:19,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:19,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615034884] [2023-12-21 22:17:19,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:19,674 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:19,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:19,675 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:19,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-21 22:17:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:19,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:19,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:19,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:19,859 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:19,859 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:19,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1615034884] [2023-12-21 22:17:19,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1615034884] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:19,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:19,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:19,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663745281] [2023-12-21 22:17:19,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:19,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:19,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:19,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:19,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:19,861 INFO L87 Difference]: Start difference. First operand 2745 states and 4884 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:20,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:20,333 INFO L93 Difference]: Finished difference Result 3473 states and 5985 transitions. [2023-12-21 22:17:20,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:20,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:20,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:20,340 INFO L225 Difference]: With dead ends: 3473 [2023-12-21 22:17:20,340 INFO L226 Difference]: Without dead ends: 2863 [2023-12-21 22:17:20,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:20,343 INFO L413 NwaCegarLoop]: 4187 mSDtfsCounter, 4527 mSDsluCounter, 8276 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4543 SdHoareTripleChecker+Valid, 12463 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:20,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4543 Valid, 12463 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 22:17:20,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2023-12-21 22:17:20,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 2863. [2023-12-21 22:17:20,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2863 states, 2797 states have (on average 1.7711834107972828) internal successors, (4954), 2800 states have internal predecessors, (4954), 43 states have call successors, (43), 20 states have call predecessors, (43), 21 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-21 22:17:20,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2863 states to 2863 states and 5041 transitions. [2023-12-21 22:17:20,417 INFO L78 Accepts]: Start accepts. Automaton has 2863 states and 5041 transitions. Word has length 121 [2023-12-21 22:17:20,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:20,417 INFO L495 AbstractCegarLoop]: Abstraction has 2863 states and 5041 transitions. [2023-12-21 22:17:20,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:20,417 INFO L276 IsEmpty]: Start isEmpty. Operand 2863 states and 5041 transitions. [2023-12-21 22:17:20,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:20,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:20,418 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:20,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:20,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:20,625 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:20,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:20,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1112936872, now seen corresponding path program 1 times [2023-12-21 22:17:20,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:20,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [343322157] [2023-12-21 22:17:20,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:20,626 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:20,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:20,627 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:20,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-21 22:17:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:20,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:20,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:20,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:20,788 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:20,788 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:20,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [343322157] [2023-12-21 22:17:20,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [343322157] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:20,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:20,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:20,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089401556] [2023-12-21 22:17:20,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:20,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:20,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:20,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:20,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:20,790 INFO L87 Difference]: Start difference. First operand 2863 states and 5041 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:21,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:21,290 INFO L93 Difference]: Finished difference Result 3709 states and 6299 transitions. [2023-12-21 22:17:21,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:21,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:21,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:21,296 INFO L225 Difference]: With dead ends: 3709 [2023-12-21 22:17:21,297 INFO L226 Difference]: Without dead ends: 2981 [2023-12-21 22:17:21,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:21,301 INFO L413 NwaCegarLoop]: 4184 mSDtfsCounter, 4521 mSDsluCounter, 8272 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4537 SdHoareTripleChecker+Valid, 12456 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:21,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4537 Valid, 12456 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 22:17:21,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2023-12-21 22:17:21,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 2981. [2023-12-21 22:17:21,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2981 states, 2909 states have (on average 1.7542110690959092) internal successors, (5103), 2912 states have internal predecessors, (5103), 45 states have call successors, (45), 24 states have call predecessors, (45), 25 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2023-12-21 22:17:21,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2981 states to 2981 states and 5194 transitions. [2023-12-21 22:17:21,454 INFO L78 Accepts]: Start accepts. Automaton has 2981 states and 5194 transitions. Word has length 121 [2023-12-21 22:17:21,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:21,455 INFO L495 AbstractCegarLoop]: Abstraction has 2981 states and 5194 transitions. [2023-12-21 22:17:21,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:21,455 INFO L276 IsEmpty]: Start isEmpty. Operand 2981 states and 5194 transitions. [2023-12-21 22:17:21,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:21,456 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:21,456 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:21,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:21,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:21,665 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:21,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:21,666 INFO L85 PathProgramCache]: Analyzing trace with hash -390001145, now seen corresponding path program 1 times [2023-12-21 22:17:21,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:21,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [104062107] [2023-12-21 22:17:21,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:21,666 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:21,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:21,667 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:21,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-21 22:17:21,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:21,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:21,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:21,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:21,853 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:21,854 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:21,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [104062107] [2023-12-21 22:17:21,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [104062107] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:21,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:21,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:21,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428724046] [2023-12-21 22:17:21,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:21,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:21,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:21,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:21,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:21,856 INFO L87 Difference]: Start difference. First operand 2981 states and 5194 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:22,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:22,435 INFO L93 Difference]: Finished difference Result 3945 states and 6605 transitions. [2023-12-21 22:17:22,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:22,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:22,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:22,443 INFO L225 Difference]: With dead ends: 3945 [2023-12-21 22:17:22,444 INFO L226 Difference]: Without dead ends: 3099 [2023-12-21 22:17:22,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:22,448 INFO L413 NwaCegarLoop]: 4181 mSDtfsCounter, 4513 mSDsluCounter, 8268 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4529 SdHoareTripleChecker+Valid, 12449 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:22,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4529 Valid, 12449 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 22:17:22,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3099 states. [2023-12-21 22:17:22,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3099 to 3099. [2023-12-21 22:17:22,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3099 states, 3021 states have (on average 1.7371731214829527) internal successors, (5248), 3024 states have internal predecessors, (5248), 47 states have call successors, (47), 28 states have call predecessors, (47), 29 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-21 22:17:22,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3099 states to 3099 states and 5343 transitions. [2023-12-21 22:17:22,529 INFO L78 Accepts]: Start accepts. Automaton has 3099 states and 5343 transitions. Word has length 121 [2023-12-21 22:17:22,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:22,530 INFO L495 AbstractCegarLoop]: Abstraction has 3099 states and 5343 transitions. [2023-12-21 22:17:22,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:22,531 INFO L276 IsEmpty]: Start isEmpty. Operand 3099 states and 5343 transitions. [2023-12-21 22:17:22,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:22,532 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:22,532 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:22,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:22,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:22,737 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:22,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:22,738 INFO L85 PathProgramCache]: Analyzing trace with hash -2111728441, now seen corresponding path program 1 times [2023-12-21 22:17:22,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:22,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720495082] [2023-12-21 22:17:22,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:22,738 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:22,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:22,740 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:22,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-21 22:17:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:22,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:22,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:22,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:22,901 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:22,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:22,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720495082] [2023-12-21 22:17:22,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1720495082] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:22,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:22,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:22,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270841216] [2023-12-21 22:17:22,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:22,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:22,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:22,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:22,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:22,903 INFO L87 Difference]: Start difference. First operand 3099 states and 5343 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:23,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:23,364 INFO L93 Difference]: Finished difference Result 4181 states and 6903 transitions. [2023-12-21 22:17:23,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:23,365 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:23,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:23,372 INFO L225 Difference]: With dead ends: 4181 [2023-12-21 22:17:23,372 INFO L226 Difference]: Without dead ends: 3217 [2023-12-21 22:17:23,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:23,376 INFO L413 NwaCegarLoop]: 4178 mSDtfsCounter, 4506 mSDsluCounter, 8264 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4522 SdHoareTripleChecker+Valid, 12442 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:23,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4522 Valid, 12442 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 22:17:23,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3217 states. [2023-12-21 22:17:23,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3217 to 3217. [2023-12-21 22:17:23,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3217 states, 3133 states have (on average 1.7200766038940314) internal successors, (5389), 3136 states have internal predecessors, (5389), 49 states have call successors, (49), 32 states have call predecessors, (49), 33 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-21 22:17:23,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3217 states to 3217 states and 5488 transitions. [2023-12-21 22:17:23,457 INFO L78 Accepts]: Start accepts. Automaton has 3217 states and 5488 transitions. Word has length 121 [2023-12-21 22:17:23,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:23,457 INFO L495 AbstractCegarLoop]: Abstraction has 3217 states and 5488 transitions. [2023-12-21 22:17:23,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:23,458 INFO L276 IsEmpty]: Start isEmpty. Operand 3217 states and 5488 transitions. [2023-12-21 22:17:23,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:23,459 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:23,459 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:23,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:23,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:23,665 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:23,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:23,665 INFO L85 PathProgramCache]: Analyzing trace with hash 428303944, now seen corresponding path program 1 times [2023-12-21 22:17:23,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:23,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654436678] [2023-12-21 22:17:23,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:23,666 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:23,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:23,667 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:23,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-21 22:17:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:23,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:23,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:23,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:23,830 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:23,830 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:23,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [654436678] [2023-12-21 22:17:23,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [654436678] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:23,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:23,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:23,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049083872] [2023-12-21 22:17:23,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:23,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:23,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:23,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:23,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:23,832 INFO L87 Difference]: Start difference. First operand 3217 states and 5488 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:24,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:24,253 INFO L93 Difference]: Finished difference Result 4417 states and 7193 transitions. [2023-12-21 22:17:24,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:24,254 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:24,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:24,261 INFO L225 Difference]: With dead ends: 4417 [2023-12-21 22:17:24,261 INFO L226 Difference]: Without dead ends: 3335 [2023-12-21 22:17:24,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:24,266 INFO L413 NwaCegarLoop]: 4175 mSDtfsCounter, 4499 mSDsluCounter, 8260 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4515 SdHoareTripleChecker+Valid, 12435 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:24,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4515 Valid, 12435 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:24,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3335 states. [2023-12-21 22:17:24,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3335 to 3335. [2023-12-21 22:17:24,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3335 states, 3245 states have (on average 1.7029275808936826) internal successors, (5526), 3248 states have internal predecessors, (5526), 51 states have call successors, (51), 36 states have call predecessors, (51), 37 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-21 22:17:24,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3335 states to 3335 states and 5629 transitions. [2023-12-21 22:17:24,356 INFO L78 Accepts]: Start accepts. Automaton has 3335 states and 5629 transitions. Word has length 121 [2023-12-21 22:17:24,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:24,356 INFO L495 AbstractCegarLoop]: Abstraction has 3335 states and 5629 transitions. [2023-12-21 22:17:24,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:24,357 INFO L276 IsEmpty]: Start isEmpty. Operand 3335 states and 5629 transitions. [2023-12-21 22:17:24,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:24,358 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:24,358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:24,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:24,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:24,564 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:24,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:24,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1160078072, now seen corresponding path program 1 times [2023-12-21 22:17:24,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:24,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [855538314] [2023-12-21 22:17:24,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:24,565 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:24,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:24,566 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:24,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-21 22:17:24,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:24,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:24,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:24,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:24,736 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:24,736 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:24,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [855538314] [2023-12-21 22:17:24,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [855538314] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:24,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:24,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:24,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468661859] [2023-12-21 22:17:24,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:24,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:24,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:24,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:24,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:24,738 INFO L87 Difference]: Start difference. First operand 3335 states and 5629 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:25,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:25,178 INFO L93 Difference]: Finished difference Result 4653 states and 7475 transitions. [2023-12-21 22:17:25,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:25,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:25,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:25,188 INFO L225 Difference]: With dead ends: 4653 [2023-12-21 22:17:25,188 INFO L226 Difference]: Without dead ends: 3453 [2023-12-21 22:17:25,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:25,193 INFO L413 NwaCegarLoop]: 4172 mSDtfsCounter, 4492 mSDsluCounter, 8256 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4508 SdHoareTripleChecker+Valid, 12428 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:25,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4508 Valid, 12428 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 22:17:25,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3453 states. [2023-12-21 22:17:25,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3453 to 3453. [2023-12-21 22:17:25,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3453 states, 3357 states have (on average 1.6857313077152218) internal successors, (5659), 3360 states have internal predecessors, (5659), 53 states have call successors, (53), 40 states have call predecessors, (53), 41 states have return successors, (54), 53 states have call predecessors, (54), 53 states have call successors, (54) [2023-12-21 22:17:25,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3453 states to 3453 states and 5766 transitions. [2023-12-21 22:17:25,278 INFO L78 Accepts]: Start accepts. Automaton has 3453 states and 5766 transitions. Word has length 121 [2023-12-21 22:17:25,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:25,279 INFO L495 AbstractCegarLoop]: Abstraction has 3453 states and 5766 transitions. [2023-12-21 22:17:25,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:25,279 INFO L276 IsEmpty]: Start isEmpty. Operand 3453 states and 5766 transitions. [2023-12-21 22:17:25,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:25,280 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:25,280 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:25,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:25,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:25,486 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:25,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:25,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1442190391, now seen corresponding path program 1 times [2023-12-21 22:17:25,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:25,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125003288] [2023-12-21 22:17:25,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:25,487 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:25,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:25,488 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:25,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-21 22:17:25,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:25,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:25,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:25,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:25,660 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:25,661 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:25,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125003288] [2023-12-21 22:17:25,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125003288] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:25,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:25,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:25,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91538264] [2023-12-21 22:17:25,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:25,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:25,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:25,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:25,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:25,663 INFO L87 Difference]: Start difference. First operand 3453 states and 5766 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:26,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:26,203 INFO L93 Difference]: Finished difference Result 4889 states and 7749 transitions. [2023-12-21 22:17:26,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:26,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:26,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:26,210 INFO L225 Difference]: With dead ends: 4889 [2023-12-21 22:17:26,210 INFO L226 Difference]: Without dead ends: 3571 [2023-12-21 22:17:26,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:26,213 INFO L413 NwaCegarLoop]: 4169 mSDtfsCounter, 4485 mSDsluCounter, 8252 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4501 SdHoareTripleChecker+Valid, 12421 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:26,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4501 Valid, 12421 Invalid, 482 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 22:17:26,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3571 states. [2023-12-21 22:17:26,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3571 to 3571. [2023-12-21 22:17:26,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3571 states, 3469 states have (on average 1.6684923609109252) internal successors, (5788), 3472 states have internal predecessors, (5788), 55 states have call successors, (55), 44 states have call predecessors, (55), 45 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-21 22:17:26,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3571 states to 3571 states and 5899 transitions. [2023-12-21 22:17:26,302 INFO L78 Accepts]: Start accepts. Automaton has 3571 states and 5899 transitions. Word has length 121 [2023-12-21 22:17:26,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:26,303 INFO L495 AbstractCegarLoop]: Abstraction has 3571 states and 5899 transitions. [2023-12-21 22:17:26,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:26,303 INFO L276 IsEmpty]: Start isEmpty. Operand 3571 states and 5899 transitions. [2023-12-21 22:17:26,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:26,304 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:26,304 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:26,312 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 [2023-12-21 22:17:26,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:26,510 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:26,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:26,510 INFO L85 PathProgramCache]: Analyzing trace with hash 272355977, now seen corresponding path program 1 times [2023-12-21 22:17:26,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:26,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [303651891] [2023-12-21 22:17:26,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:26,511 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:26,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:26,512 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:26,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-21 22:17:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:26,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:26,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:26,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:26,638 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:26,638 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:26,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [303651891] [2023-12-21 22:17:26,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [303651891] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:26,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:26,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:26,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686506543] [2023-12-21 22:17:26,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:26,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:26,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:26,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:26,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:26,643 INFO L87 Difference]: Start difference. First operand 3571 states and 5899 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:26,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:26,796 INFO L93 Difference]: Finished difference Result 5110 states and 7994 transitions. [2023-12-21 22:17:26,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:26,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:26,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:26,803 INFO L225 Difference]: With dead ends: 5110 [2023-12-21 22:17:26,803 INFO L226 Difference]: Without dead ends: 3675 [2023-12-21 22:17:26,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:26,809 INFO L413 NwaCegarLoop]: 4287 mSDtfsCounter, 74 mSDsluCounter, 8562 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 12849 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:26,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 12849 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:26,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3675 states. [2023-12-21 22:17:26,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3675 to 3575. [2023-12-21 22:17:26,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3575 states, 3473 states have (on average 1.6631154621364814) internal successors, (5776), 3476 states have internal predecessors, (5776), 55 states have call successors, (55), 44 states have call predecessors, (55), 45 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-21 22:17:26,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3575 states to 3575 states and 5887 transitions. [2023-12-21 22:17:26,905 INFO L78 Accepts]: Start accepts. Automaton has 3575 states and 5887 transitions. Word has length 121 [2023-12-21 22:17:26,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:26,905 INFO L495 AbstractCegarLoop]: Abstraction has 3575 states and 5887 transitions. [2023-12-21 22:17:26,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:26,905 INFO L276 IsEmpty]: Start isEmpty. Operand 3575 states and 5887 transitions. [2023-12-21 22:17:26,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:26,906 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:26,906 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:26,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:27,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:27,114 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:27,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:27,115 INFO L85 PathProgramCache]: Analyzing trace with hash 512595723, now seen corresponding path program 1 times [2023-12-21 22:17:27,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:27,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1667013681] [2023-12-21 22:17:27,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:27,115 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:27,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:27,116 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:27,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-21 22:17:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:27,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:27,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:27,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:27,229 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:27,230 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:27,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1667013681] [2023-12-21 22:17:27,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1667013681] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:27,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:27,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:27,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287122093] [2023-12-21 22:17:27,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:27,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:27,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:27,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:27,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:27,232 INFO L87 Difference]: Start difference. First operand 3575 states and 5887 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:27,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:27,392 INFO L93 Difference]: Finished difference Result 5106 states and 7954 transitions. [2023-12-21 22:17:27,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:27,393 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:27,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:27,400 INFO L225 Difference]: With dead ends: 5106 [2023-12-21 22:17:27,401 INFO L226 Difference]: Without dead ends: 3667 [2023-12-21 22:17:27,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:27,406 INFO L413 NwaCegarLoop]: 4287 mSDtfsCounter, 65 mSDsluCounter, 8563 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 12850 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:27,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 12850 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:27,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3667 states. [2023-12-21 22:17:27,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3667 to 3579. [2023-12-21 22:17:27,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3579 states, 3477 states have (on average 1.6577509347138337) internal successors, (5764), 3480 states have internal predecessors, (5764), 55 states have call successors, (55), 44 states have call predecessors, (55), 45 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-21 22:17:27,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3579 states to 3579 states and 5875 transitions. [2023-12-21 22:17:27,512 INFO L78 Accepts]: Start accepts. Automaton has 3579 states and 5875 transitions. Word has length 121 [2023-12-21 22:17:27,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:27,512 INFO L495 AbstractCegarLoop]: Abstraction has 3579 states and 5875 transitions. [2023-12-21 22:17:27,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:27,512 INFO L276 IsEmpty]: Start isEmpty. Operand 3579 states and 5875 transitions. [2023-12-21 22:17:27,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:27,514 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:27,514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:27,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:27,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:27,719 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:27,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:27,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1399818569, now seen corresponding path program 1 times [2023-12-21 22:17:27,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:27,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [755347140] [2023-12-21 22:17:27,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:27,720 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:27,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:27,722 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:27,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-21 22:17:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:27,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:27,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:27,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:27,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:27,842 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:27,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [755347140] [2023-12-21 22:17:27,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [755347140] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:27,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:27,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:27,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166888369] [2023-12-21 22:17:27,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:27,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:27,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:27,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:27,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:27,844 INFO L87 Difference]: Start difference. First operand 3579 states and 5875 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:27,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:27,990 INFO L93 Difference]: Finished difference Result 5102 states and 7914 transitions. [2023-12-21 22:17:27,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:27,991 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:27,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:27,996 INFO L225 Difference]: With dead ends: 5102 [2023-12-21 22:17:27,996 INFO L226 Difference]: Without dead ends: 3659 [2023-12-21 22:17:27,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:28,000 INFO L413 NwaCegarLoop]: 4287 mSDtfsCounter, 56 mSDsluCounter, 8564 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 12851 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:28,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 12851 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:28,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3659 states. [2023-12-21 22:17:28,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3659 to 3583. [2023-12-21 22:17:28,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3583 states, 3481 states have (on average 1.6523987359954035) internal successors, (5752), 3484 states have internal predecessors, (5752), 55 states have call successors, (55), 44 states have call predecessors, (55), 45 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-21 22:17:28,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3583 states to 3583 states and 5863 transitions. [2023-12-21 22:17:28,098 INFO L78 Accepts]: Start accepts. Automaton has 3583 states and 5863 transitions. Word has length 121 [2023-12-21 22:17:28,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:28,098 INFO L495 AbstractCegarLoop]: Abstraction has 3583 states and 5863 transitions. [2023-12-21 22:17:28,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:28,098 INFO L276 IsEmpty]: Start isEmpty. Operand 3583 states and 5863 transitions. [2023-12-21 22:17:28,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:28,100 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:28,100 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:28,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:28,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:28,305 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:28,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:28,306 INFO L85 PathProgramCache]: Analyzing trace with hash 907192395, now seen corresponding path program 1 times [2023-12-21 22:17:28,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:28,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [848278009] [2023-12-21 22:17:28,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:28,306 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:28,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:28,307 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:28,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-21 22:17:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:28,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:17:28,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:28,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:28,484 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:28,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:28,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [848278009] [2023-12-21 22:17:28,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [848278009] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:28,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:28,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 22:17:28,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112511758] [2023-12-21 22:17:28,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:28,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:17:28,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:28,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:17:28,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:28,486 INFO L87 Difference]: Start difference. First operand 3583 states and 5863 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:28,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:28,714 INFO L93 Difference]: Finished difference Result 6334 states and 9461 transitions. [2023-12-21 22:17:28,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:17:28,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:28,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:28,722 INFO L225 Difference]: With dead ends: 6334 [2023-12-21 22:17:28,722 INFO L226 Difference]: Without dead ends: 4887 [2023-12-21 22:17:28,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:28,726 INFO L413 NwaCegarLoop]: 4334 mSDtfsCounter, 4254 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4254 SdHoareTripleChecker+Valid, 4633 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:28,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4254 Valid, 4633 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:28,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4887 states. [2023-12-21 22:17:28,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4887 to 4883. [2023-12-21 22:17:28,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4883 states, 4693 states have (on average 1.559556786703601) internal successors, (7319), 4697 states have internal predecessors, (7319), 102 states have call successors, (102), 84 states have call predecessors, (102), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-21 22:17:28,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4883 states to 4883 states and 7525 transitions. [2023-12-21 22:17:28,867 INFO L78 Accepts]: Start accepts. Automaton has 4883 states and 7525 transitions. Word has length 121 [2023-12-21 22:17:28,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:28,868 INFO L495 AbstractCegarLoop]: Abstraction has 4883 states and 7525 transitions. [2023-12-21 22:17:28,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:28,868 INFO L276 IsEmpty]: Start isEmpty. Operand 4883 states and 7525 transitions. [2023-12-21 22:17:28,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:28,869 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:28,869 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:28,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:29,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:29,074 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:29,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:29,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1250280628, now seen corresponding path program 1 times [2023-12-21 22:17:29,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:29,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1693447069] [2023-12-21 22:17:29,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:29,075 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:29,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:29,077 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:29,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-21 22:17:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:29,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:29,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:29,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:29,216 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:29,216 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:29,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1693447069] [2023-12-21 22:17:29,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1693447069] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:29,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:29,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:29,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619421653] [2023-12-21 22:17:29,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:29,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:29,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:29,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:29,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:29,218 INFO L87 Difference]: Start difference. First operand 4883 states and 7525 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:29,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:29,434 INFO L93 Difference]: Finished difference Result 8242 states and 11964 transitions. [2023-12-21 22:17:29,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:29,434 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:29,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:29,443 INFO L225 Difference]: With dead ends: 8242 [2023-12-21 22:17:29,443 INFO L226 Difference]: Without dead ends: 5495 [2023-12-21 22:17:29,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:29,451 INFO L413 NwaCegarLoop]: 4290 mSDtfsCounter, 47 mSDsluCounter, 8574 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 12864 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:29,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 12864 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:29,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5495 states. [2023-12-21 22:17:29,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5495 to 4919. [2023-12-21 22:17:29,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4919 states, 4729 states have (on average 1.551913723831677) internal successors, (7339), 4733 states have internal predecessors, (7339), 102 states have call successors, (102), 84 states have call predecessors, (102), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-21 22:17:29,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4919 states to 4919 states and 7545 transitions. [2023-12-21 22:17:29,599 INFO L78 Accepts]: Start accepts. Automaton has 4919 states and 7545 transitions. Word has length 121 [2023-12-21 22:17:29,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:29,600 INFO L495 AbstractCegarLoop]: Abstraction has 4919 states and 7545 transitions. [2023-12-21 22:17:29,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:29,600 INFO L276 IsEmpty]: Start isEmpty. Operand 4919 states and 7545 transitions. [2023-12-21 22:17:29,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:29,601 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:29,601 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:29,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:29,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:29,806 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:29,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:29,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1304673526, now seen corresponding path program 1 times [2023-12-21 22:17:29,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:29,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533041744] [2023-12-21 22:17:29,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:29,807 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:29,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:29,808 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:29,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-21 22:17:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:29,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:29,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:29,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:29,942 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:29,942 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:29,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533041744] [2023-12-21 22:17:29,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [533041744] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:29,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:29,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:29,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131627229] [2023-12-21 22:17:29,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:29,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:29,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:29,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:29,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:29,944 INFO L87 Difference]: Start difference. First operand 4919 states and 7545 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:30,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:30,145 INFO L93 Difference]: Finished difference Result 7790 states and 11297 transitions. [2023-12-21 22:17:30,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:30,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:30,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:30,153 INFO L225 Difference]: With dead ends: 7790 [2023-12-21 22:17:30,154 INFO L226 Difference]: Without dead ends: 5007 [2023-12-21 22:17:30,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:30,161 INFO L413 NwaCegarLoop]: 4287 mSDtfsCounter, 29 mSDsluCounter, 8566 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 12853 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:30,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 12853 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:30,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5007 states. [2023-12-21 22:17:30,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5007 to 4927. [2023-12-21 22:17:30,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4927 states, 4737 states have (on average 1.544648511716276) internal successors, (7317), 4741 states have internal predecessors, (7317), 102 states have call successors, (102), 84 states have call predecessors, (102), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-21 22:17:30,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4927 states to 4927 states and 7523 transitions. [2023-12-21 22:17:30,317 INFO L78 Accepts]: Start accepts. Automaton has 4927 states and 7523 transitions. Word has length 121 [2023-12-21 22:17:30,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:30,317 INFO L495 AbstractCegarLoop]: Abstraction has 4927 states and 7523 transitions. [2023-12-21 22:17:30,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:30,318 INFO L276 IsEmpty]: Start isEmpty. Operand 4927 states and 7523 transitions. [2023-12-21 22:17:30,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:30,319 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:30,319 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:30,324 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 (24)] Ended with exit code 0 [2023-12-21 22:17:30,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:30,524 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:30,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:30,525 INFO L85 PathProgramCache]: Analyzing trace with hash -428654520, now seen corresponding path program 1 times [2023-12-21 22:17:30,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:30,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1494702119] [2023-12-21 22:17:30,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:30,525 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:30,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:30,527 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:30,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-21 22:17:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:30,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:30,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:30,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:30,654 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:30,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:30,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1494702119] [2023-12-21 22:17:30,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1494702119] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:30,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:30,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:30,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187956950] [2023-12-21 22:17:30,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:30,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:30,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:30,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:30,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:30,656 INFO L87 Difference]: Start difference. First operand 4927 states and 7523 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:30,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:30,944 INFO L93 Difference]: Finished difference Result 7782 states and 11221 transitions. [2023-12-21 22:17:30,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:30,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:30,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:30,952 INFO L225 Difference]: With dead ends: 7782 [2023-12-21 22:17:30,953 INFO L226 Difference]: Without dead ends: 4991 [2023-12-21 22:17:30,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:30,958 INFO L413 NwaCegarLoop]: 4287 mSDtfsCounter, 20 mSDsluCounter, 8567 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 12854 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:30,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 12854 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:30,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4991 states. [2023-12-21 22:17:31,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4991 to 4935. [2023-12-21 22:17:31,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4935 states, 4745 states have (on average 1.5374077976817704) internal successors, (7295), 4749 states have internal predecessors, (7295), 102 states have call successors, (102), 84 states have call predecessors, (102), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-21 22:17:31,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4935 states to 4935 states and 7501 transitions. [2023-12-21 22:17:31,100 INFO L78 Accepts]: Start accepts. Automaton has 4935 states and 7501 transitions. Word has length 121 [2023-12-21 22:17:31,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:31,100 INFO L495 AbstractCegarLoop]: Abstraction has 4935 states and 7501 transitions. [2023-12-21 22:17:31,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:31,100 INFO L276 IsEmpty]: Start isEmpty. Operand 4935 states and 7501 transitions. [2023-12-21 22:17:31,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:31,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:31,102 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:31,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:31,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:31,306 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:31,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:31,307 INFO L85 PathProgramCache]: Analyzing trace with hash -444173238, now seen corresponding path program 1 times [2023-12-21 22:17:31,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:31,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958845489] [2023-12-21 22:17:31,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:31,307 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:31,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:31,308 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:31,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-21 22:17:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:31,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:31,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:31,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:31,425 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:31,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:31,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1958845489] [2023-12-21 22:17:31,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1958845489] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:31,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:31,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:31,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037494977] [2023-12-21 22:17:31,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:31,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:31,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:31,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:31,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:31,426 INFO L87 Difference]: Start difference. First operand 4935 states and 7501 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:31,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:31,615 INFO L93 Difference]: Finished difference Result 7774 states and 11145 transitions. [2023-12-21 22:17:31,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:31,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:31,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:31,621 INFO L225 Difference]: With dead ends: 7774 [2023-12-21 22:17:31,621 INFO L226 Difference]: Without dead ends: 4975 [2023-12-21 22:17:31,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:31,625 INFO L413 NwaCegarLoop]: 4287 mSDtfsCounter, 11 mSDsluCounter, 8568 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12855 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:31,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12855 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:31,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4975 states. [2023-12-21 22:17:31,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4975 to 4943. [2023-12-21 22:17:31,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4943 states, 4753 states have (on average 1.5301914580265095) internal successors, (7273), 4757 states have internal predecessors, (7273), 102 states have call successors, (102), 84 states have call predecessors, (102), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-21 22:17:31,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4943 states to 4943 states and 7479 transitions. [2023-12-21 22:17:31,770 INFO L78 Accepts]: Start accepts. Automaton has 4943 states and 7479 transitions. Word has length 121 [2023-12-21 22:17:31,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:31,770 INFO L495 AbstractCegarLoop]: Abstraction has 4943 states and 7479 transitions. [2023-12-21 22:17:31,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:31,770 INFO L276 IsEmpty]: Start isEmpty. Operand 4943 states and 7479 transitions. [2023-12-21 22:17:31,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:31,772 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:31,772 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:31,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:31,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:31,977 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:31,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:31,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1801406216, now seen corresponding path program 1 times [2023-12-21 22:17:31,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:31,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282904802] [2023-12-21 22:17:31,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:31,978 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:31,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:31,979 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:32,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-21 22:17:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:32,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:32,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:32,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:32,116 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:32,116 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:32,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282904802] [2023-12-21 22:17:32,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282904802] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:32,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:32,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:32,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944393124] [2023-12-21 22:17:32,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:32,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:32,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:32,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:32,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:32,119 INFO L87 Difference]: Start difference. First operand 4943 states and 7479 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:32,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:32,276 INFO L93 Difference]: Finished difference Result 7766 states and 11069 transitions. [2023-12-21 22:17:32,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:32,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:32,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:32,283 INFO L225 Difference]: With dead ends: 7766 [2023-12-21 22:17:32,283 INFO L226 Difference]: Without dead ends: 4959 [2023-12-21 22:17:32,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:32,287 INFO L413 NwaCegarLoop]: 4287 mSDtfsCounter, 2 mSDsluCounter, 8569 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12856 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:32,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12856 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:32,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4959 states. [2023-12-21 22:17:32,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4959 to 4951. [2023-12-21 22:17:32,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4951 states, 4761 states have (on average 1.5229993698802773) internal successors, (7251), 4765 states have internal predecessors, (7251), 102 states have call successors, (102), 84 states have call predecessors, (102), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-21 22:17:32,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4951 states to 4951 states and 7457 transitions. [2023-12-21 22:17:32,521 INFO L78 Accepts]: Start accepts. Automaton has 4951 states and 7457 transitions. Word has length 121 [2023-12-21 22:17:32,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:32,522 INFO L495 AbstractCegarLoop]: Abstraction has 4951 states and 7457 transitions. [2023-12-21 22:17:32,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:32,522 INFO L276 IsEmpty]: Start isEmpty. Operand 4951 states and 7457 transitions. [2023-12-21 22:17:32,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:32,523 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:32,523 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:32,530 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 (27)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:32,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:32,728 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:32,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:32,729 INFO L85 PathProgramCache]: Analyzing trace with hash -43960950, now seen corresponding path program 1 times [2023-12-21 22:17:32,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:32,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217700822] [2023-12-21 22:17:32,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:32,729 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:32,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:32,731 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:32,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-21 22:17:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:32,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 22:17:32,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:32,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:32,989 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:32,989 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:32,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [217700822] [2023-12-21 22:17:32,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [217700822] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:32,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:32,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:32,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045454952] [2023-12-21 22:17:32,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:32,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:32,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:32,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:32,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:32,991 INFO L87 Difference]: Start difference. First operand 4951 states and 7457 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:33,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:33,451 INFO L93 Difference]: Finished difference Result 7767 states and 10944 transitions. [2023-12-21 22:17:33,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:33,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:33,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:33,457 INFO L225 Difference]: With dead ends: 7767 [2023-12-21 22:17:33,457 INFO L226 Difference]: Without dead ends: 4951 [2023-12-21 22:17:33,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:33,461 INFO L413 NwaCegarLoop]: 4165 mSDtfsCounter, 4355 mSDsluCounter, 8248 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4370 SdHoareTripleChecker+Valid, 12413 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:33,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4370 Valid, 12413 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:33,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4951 states. [2023-12-21 22:17:33,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4951 to 4951. [2023-12-21 22:17:33,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4951 states, 4761 states have (on average 1.5200588111741231) internal successors, (7237), 4765 states have internal predecessors, (7237), 102 states have call successors, (102), 84 states have call predecessors, (102), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-21 22:17:33,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4951 states to 4951 states and 7443 transitions. [2023-12-21 22:17:33,571 INFO L78 Accepts]: Start accepts. Automaton has 4951 states and 7443 transitions. Word has length 121 [2023-12-21 22:17:33,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:33,571 INFO L495 AbstractCegarLoop]: Abstraction has 4951 states and 7443 transitions. [2023-12-21 22:17:33,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:33,572 INFO L276 IsEmpty]: Start isEmpty. Operand 4951 states and 7443 transitions. [2023-12-21 22:17:33,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:33,573 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:33,573 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:33,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:33,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:33,777 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:33,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:33,778 INFO L85 PathProgramCache]: Analyzing trace with hash 657638924, now seen corresponding path program 1 times [2023-12-21 22:17:33,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:33,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1981666559] [2023-12-21 22:17:33,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:33,778 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:33,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:33,779 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:33,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-21 22:17:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:33,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 22:17:33,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:34,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:34,039 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:34,040 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:34,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1981666559] [2023-12-21 22:17:34,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1981666559] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:34,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:34,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:34,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304578291] [2023-12-21 22:17:34,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:34,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:34,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:34,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:34,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:34,041 INFO L87 Difference]: Start difference. First operand 4951 states and 7443 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:34,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:34,616 INFO L93 Difference]: Finished difference Result 8025 states and 11241 transitions. [2023-12-21 22:17:34,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 22:17:34,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-21 22:17:34,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:34,624 INFO L225 Difference]: With dead ends: 8025 [2023-12-21 22:17:34,624 INFO L226 Difference]: Without dead ends: 5209 [2023-12-21 22:17:34,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 22:17:34,630 INFO L413 NwaCegarLoop]: 4164 mSDtfsCounter, 4445 mSDsluCounter, 8244 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4460 SdHoareTripleChecker+Valid, 12408 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:34,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4460 Valid, 12408 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 22:17:34,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5209 states. [2023-12-21 22:17:34,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5209 to 5141. [2023-12-21 22:17:34,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 4947 states have (on average 1.4988882150798464) internal successors, (7415), 4951 states have internal predecessors, (7415), 102 states have call successors, (102), 88 states have call predecessors, (102), 90 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-21 22:17:34,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 7621 transitions. [2023-12-21 22:17:34,773 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 7621 transitions. Word has length 121 [2023-12-21 22:17:34,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:34,774 INFO L495 AbstractCegarLoop]: Abstraction has 5141 states and 7621 transitions. [2023-12-21 22:17:34,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:34,774 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 7621 transitions. [2023-12-21 22:17:34,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 22:17:34,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:34,775 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:34,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:34,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:34,979 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:34,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:34,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1147799410, now seen corresponding path program 1 times [2023-12-21 22:17:34,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:34,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775151236] [2023-12-21 22:17:34,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:34,980 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:34,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:34,981 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:34,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-21 22:17:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:35,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:17:35,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:35,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:35,234 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:35,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:35,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775151236] [2023-12-21 22:17:35,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [775151236] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:35,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:35,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 22:17:35,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939215332] [2023-12-21 22:17:35,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:35,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:17:35,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:35,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:17:35,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:35,236 INFO L87 Difference]: Start difference. First operand 5141 states and 7621 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-21 22:17:35,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:35,561 INFO L93 Difference]: Finished difference Result 11090 states and 14893 transitions. [2023-12-21 22:17:35,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:17:35,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 121 [2023-12-21 22:17:35,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:35,570 INFO L225 Difference]: With dead ends: 11090 [2023-12-21 22:17:35,571 INFO L226 Difference]: Without dead ends: 8085 [2023-12-21 22:17:35,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:35,576 INFO L413 NwaCegarLoop]: 4280 mSDtfsCounter, 4185 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4185 SdHoareTripleChecker+Valid, 4571 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:35,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4185 Valid, 4571 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:35,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8085 states. [2023-12-21 22:17:35,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8085 to 8081. [2023-12-21 22:17:35,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8081 states, 7699 states have (on average 1.393817378880374) internal successors, (10731), 7709 states have internal predecessors, (10731), 200 states have call successors, (200), 176 states have call predecessors, (200), 180 states have return successors, (204), 196 states have call predecessors, (204), 200 states have call successors, (204) [2023-12-21 22:17:35,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8081 states to 8081 states and 11135 transitions. [2023-12-21 22:17:35,805 INFO L78 Accepts]: Start accepts. Automaton has 8081 states and 11135 transitions. Word has length 121 [2023-12-21 22:17:35,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:35,805 INFO L495 AbstractCegarLoop]: Abstraction has 8081 states and 11135 transitions. [2023-12-21 22:17:35,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-21 22:17:35,806 INFO L276 IsEmpty]: Start isEmpty. Operand 8081 states and 11135 transitions. [2023-12-21 22:17:35,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-12-21 22:17:35,810 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:35,811 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:35,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:36,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:36,016 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:36,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:36,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1774089058, now seen corresponding path program 1 times [2023-12-21 22:17:36,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:36,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534677508] [2023-12-21 22:17:36,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:36,017 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:36,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:36,018 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:36,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-21 22:17:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:36,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 22:17:36,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:36,360 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-21 22:17:36,360 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:36,360 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:36,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534677508] [2023-12-21 22:17:36,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [534677508] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:36,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:36,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:36,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122700901] [2023-12-21 22:17:36,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:36,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:36,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:36,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:36,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:36,362 INFO L87 Difference]: Start difference. First operand 8081 states and 11135 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:17:37,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:37,166 INFO L93 Difference]: Finished difference Result 19741 states and 25145 transitions. [2023-12-21 22:17:37,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:37,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 195 [2023-12-21 22:17:37,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:37,193 INFO L225 Difference]: With dead ends: 19741 [2023-12-21 22:17:37,193 INFO L226 Difference]: Without dead ends: 13797 [2023-12-21 22:17:37,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:37,205 INFO L413 NwaCegarLoop]: 4245 mSDtfsCounter, 4425 mSDsluCounter, 4388 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4430 SdHoareTripleChecker+Valid, 8633 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:37,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4430 Valid, 8633 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:37,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13797 states. [2023-12-21 22:17:37,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13797 to 13795. [2023-12-21 22:17:37,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13795 states, 13053 states have (on average 1.3136443729410863) internal successors, (17147), 13079 states have internal predecessors, (17147), 380 states have call successors, (380), 336 states have call predecessors, (380), 360 states have return successors, (428), 380 states have call predecessors, (428), 380 states have call successors, (428) [2023-12-21 22:17:37,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13795 states to 13795 states and 17955 transitions. [2023-12-21 22:17:37,744 INFO L78 Accepts]: Start accepts. Automaton has 13795 states and 17955 transitions. Word has length 195 [2023-12-21 22:17:37,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:37,744 INFO L495 AbstractCegarLoop]: Abstraction has 13795 states and 17955 transitions. [2023-12-21 22:17:37,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:17:37,745 INFO L276 IsEmpty]: Start isEmpty. Operand 13795 states and 17955 transitions. [2023-12-21 22:17:37,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-12-21 22:17:37,753 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:37,753 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:37,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:37,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:37,959 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:37,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:37,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1419173415, now seen corresponding path program 1 times [2023-12-21 22:17:37,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:37,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1584541156] [2023-12-21 22:17:37,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:37,960 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:37,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:37,961 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:37,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-21 22:17:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:38,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 22:17:38,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:38,305 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-21 22:17:38,306 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:38,306 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:38,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1584541156] [2023-12-21 22:17:38,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1584541156] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:38,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:38,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:38,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965679860] [2023-12-21 22:17:38,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:38,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:38,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:38,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:38,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:38,308 INFO L87 Difference]: Start difference. First operand 13795 states and 17955 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:17:39,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:39,389 INFO L93 Difference]: Finished difference Result 36333 states and 44968 transitions. [2023-12-21 22:17:39,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:39,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 197 [2023-12-21 22:17:39,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:39,436 INFO L225 Difference]: With dead ends: 36333 [2023-12-21 22:17:39,437 INFO L226 Difference]: Without dead ends: 24675 [2023-12-21 22:17:39,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:39,453 INFO L413 NwaCegarLoop]: 4335 mSDtfsCounter, 4405 mSDsluCounter, 4464 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4410 SdHoareTripleChecker+Valid, 8799 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:39,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4410 Valid, 8799 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:39,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24675 states. [2023-12-21 22:17:40,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24675 to 24673. [2023-12-21 22:17:40,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24673 states, 23240 states have (on average 1.2633390705679863) internal successors, (29360), 23299 states have internal predecessors, (29360), 727 states have call successors, (727), 640 states have call predecessors, (727), 704 states have return successors, (863), 735 states have call predecessors, (863), 727 states have call successors, (863) [2023-12-21 22:17:40,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24673 states to 24673 states and 30950 transitions. [2023-12-21 22:17:40,468 INFO L78 Accepts]: Start accepts. Automaton has 24673 states and 30950 transitions. Word has length 197 [2023-12-21 22:17:40,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:40,469 INFO L495 AbstractCegarLoop]: Abstraction has 24673 states and 30950 transitions. [2023-12-21 22:17:40,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:17:40,469 INFO L276 IsEmpty]: Start isEmpty. Operand 24673 states and 30950 transitions. [2023-12-21 22:17:40,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-12-21 22:17:40,483 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:40,483 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:40,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:40,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:40,689 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:40,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:40,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1542455081, now seen corresponding path program 1 times [2023-12-21 22:17:40,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:40,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976265519] [2023-12-21 22:17:40,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:40,690 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:40,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:40,691 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:40,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-21 22:17:40,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:40,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:17:40,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:40,835 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-21 22:17:40,835 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:40,836 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:40,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976265519] [2023-12-21 22:17:40,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [976265519] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:40,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:40,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:17:40,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451558139] [2023-12-21 22:17:40,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:40,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:17:40,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:40,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:17:40,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:40,838 INFO L87 Difference]: Start difference. First operand 24673 states and 30950 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:41,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:41,713 INFO L93 Difference]: Finished difference Result 47199 states and 57895 transitions. [2023-12-21 22:17:41,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:17:41,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 197 [2023-12-21 22:17:41,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:41,753 INFO L225 Difference]: With dead ends: 47199 [2023-12-21 22:17:41,753 INFO L226 Difference]: Without dead ends: 24663 [2023-12-21 22:17:41,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:41,774 INFO L413 NwaCegarLoop]: 4280 mSDtfsCounter, 348 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 8237 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:41,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 8237 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 22:17:41,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24663 states. [2023-12-21 22:17:42,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24663 to 24663. [2023-12-21 22:17:42,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24663 states, 23233 states have (on average 1.2631171178926528) internal successors, (29346), 23291 states have internal predecessors, (29346), 724 states have call successors, (724), 640 states have call predecessors, (724), 704 states have return successors, (860), 732 states have call predecessors, (860), 724 states have call successors, (860) [2023-12-21 22:17:42,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24663 states to 24663 states and 30930 transitions. [2023-12-21 22:17:42,821 INFO L78 Accepts]: Start accepts. Automaton has 24663 states and 30930 transitions. Word has length 197 [2023-12-21 22:17:42,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:42,821 INFO L495 AbstractCegarLoop]: Abstraction has 24663 states and 30930 transitions. [2023-12-21 22:17:42,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:42,822 INFO L276 IsEmpty]: Start isEmpty. Operand 24663 states and 30930 transitions. [2023-12-21 22:17:42,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-12-21 22:17:42,835 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:42,836 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:42,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:43,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:43,041 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:43,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:43,042 INFO L85 PathProgramCache]: Analyzing trace with hash 318911010, now seen corresponding path program 1 times [2023-12-21 22:17:43,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:43,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1079709096] [2023-12-21 22:17:43,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:43,043 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:43,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:43,044 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:43,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-21 22:17:43,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:43,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 22:17:43,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:43,399 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-21 22:17:43,399 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:43,399 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:43,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1079709096] [2023-12-21 22:17:43,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1079709096] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:43,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:43,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:43,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526984589] [2023-12-21 22:17:43,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:43,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:43,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:43,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:43,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:43,401 INFO L87 Difference]: Start difference. First operand 24663 states and 30930 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:17:45,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:45,278 INFO L93 Difference]: Finished difference Result 68860 states and 83797 transitions. [2023-12-21 22:17:45,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:45,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 199 [2023-12-21 22:17:45,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:45,356 INFO L225 Difference]: With dead ends: 68860 [2023-12-21 22:17:45,357 INFO L226 Difference]: Without dead ends: 46334 [2023-12-21 22:17:45,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:45,381 INFO L413 NwaCegarLoop]: 4323 mSDtfsCounter, 4399 mSDsluCounter, 4446 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4405 SdHoareTripleChecker+Valid, 8769 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:45,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4405 Valid, 8769 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:45,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46334 states. [2023-12-21 22:17:47,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46334 to 46332. [2023-12-21 22:17:47,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46332 states, 43523 states have (on average 1.2325666888771454) internal successors, (53645), 43646 states have internal predecessors, (53645), 1415 states have call successors, (1415), 1248 states have call predecessors, (1415), 1392 states have return successors, (1727), 1439 states have call predecessors, (1727), 1415 states have call successors, (1727) [2023-12-21 22:17:47,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46332 states to 46332 states and 56787 transitions. [2023-12-21 22:17:47,559 INFO L78 Accepts]: Start accepts. Automaton has 46332 states and 56787 transitions. Word has length 199 [2023-12-21 22:17:47,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:47,559 INFO L495 AbstractCegarLoop]: Abstraction has 46332 states and 56787 transitions. [2023-12-21 22:17:47,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:17:47,560 INFO L276 IsEmpty]: Start isEmpty. Operand 46332 states and 56787 transitions. [2023-12-21 22:17:47,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-12-21 22:17:47,579 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:47,579 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:47,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:47,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:47,785 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:47,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:47,785 INFO L85 PathProgramCache]: Analyzing trace with hash -154324640, now seen corresponding path program 1 times [2023-12-21 22:17:47,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:47,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [522254503] [2023-12-21 22:17:47,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:47,786 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:47,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:47,787 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:47,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-21 22:17:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:47,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:17:47,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:47,923 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-21 22:17:47,923 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:47,923 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:47,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [522254503] [2023-12-21 22:17:47,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [522254503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:47,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:47,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:17:47,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224756679] [2023-12-21 22:17:47,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:47,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:17:47,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:47,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:17:47,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:47,925 INFO L87 Difference]: Start difference. First operand 46332 states and 56787 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:49,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:49,156 INFO L93 Difference]: Finished difference Result 79890 states and 96916 transitions. [2023-12-21 22:17:49,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:17:49,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 199 [2023-12-21 22:17:49,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:49,209 INFO L225 Difference]: With dead ends: 79890 [2023-12-21 22:17:49,209 INFO L226 Difference]: Without dead ends: 35695 [2023-12-21 22:17:49,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:49,246 INFO L413 NwaCegarLoop]: 4279 mSDtfsCounter, 346 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 8236 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:49,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 8236 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 22:17:49,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35695 states. [2023-12-21 22:17:51,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35695 to 35695. [2023-12-21 22:17:51,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35695 states, 33569 states have (on average 1.2435580446245047) internal successors, (41745), 33663 states have internal predecessors, (41745), 1068 states have call successors, (1068), 944 states have call predecessors, (1068), 1056 states have return successors, (1300), 1088 states have call predecessors, (1300), 1068 states have call successors, (1300) [2023-12-21 22:17:51,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35695 states to 35695 states and 44113 transitions. [2023-12-21 22:17:51,284 INFO L78 Accepts]: Start accepts. Automaton has 35695 states and 44113 transitions. Word has length 199 [2023-12-21 22:17:51,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:51,284 INFO L495 AbstractCegarLoop]: Abstraction has 35695 states and 44113 transitions. [2023-12-21 22:17:51,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:51,284 INFO L276 IsEmpty]: Start isEmpty. Operand 35695 states and 44113 transitions. [2023-12-21 22:17:51,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-12-21 22:17:51,298 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:51,299 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:51,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:51,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:51,504 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:51,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:51,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1696578009, now seen corresponding path program 1 times [2023-12-21 22:17:51,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:51,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637168033] [2023-12-21 22:17:51,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:51,505 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:51,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:51,506 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:51,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-21 22:17:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:51,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 22:17:51,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:51,840 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-21 22:17:51,840 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:51,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:51,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637168033] [2023-12-21 22:17:51,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637168033] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:51,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:51,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:51,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431988106] [2023-12-21 22:17:51,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:51,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:51,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:51,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:51,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:51,841 INFO L87 Difference]: Start difference. First operand 35695 states and 44113 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:17:54,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:54,742 INFO L93 Difference]: Finished difference Result 112395 states and 135475 transitions. [2023-12-21 22:17:54,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:54,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 201 [2023-12-21 22:17:54,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:54,862 INFO L225 Difference]: With dead ends: 112395 [2023-12-21 22:17:54,862 INFO L226 Difference]: Without dead ends: 78837 [2023-12-21 22:17:54,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:54,893 INFO L413 NwaCegarLoop]: 4332 mSDtfsCounter, 4400 mSDsluCounter, 4439 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4406 SdHoareTripleChecker+Valid, 8771 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:54,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4406 Valid, 8771 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:54,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78837 states. [2023-12-21 22:17:57,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78837 to 77299. [2023-12-21 22:17:57,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77299 states, 72498 states have (on average 1.2156749151700736) internal successors, (88134), 73081 states have internal predecessors, (88134), 2039 states have call successors, (2039), 1792 states have call predecessors, (2039), 2760 states have return successors, (3284), 2427 states have call predecessors, (3284), 2039 states have call successors, (3284) [2023-12-21 22:17:58,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77299 states to 77299 states and 93457 transitions. [2023-12-21 22:17:58,116 INFO L78 Accepts]: Start accepts. Automaton has 77299 states and 93457 transitions. Word has length 201 [2023-12-21 22:17:58,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:58,116 INFO L495 AbstractCegarLoop]: Abstraction has 77299 states and 93457 transitions. [2023-12-21 22:17:58,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:17:58,116 INFO L276 IsEmpty]: Start isEmpty. Operand 77299 states and 93457 transitions. [2023-12-21 22:17:58,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-12-21 22:17:58,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:58,143 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:58,147 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2023-12-21 22:17:58,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:58,348 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:58,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:58,348 INFO L85 PathProgramCache]: Analyzing trace with hash 812986025, now seen corresponding path program 1 times [2023-12-21 22:17:58,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:58,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087700364] [2023-12-21 22:17:58,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:58,348 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:58,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:58,349 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:17:58,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-21 22:17:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:58,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:17:58,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:58,488 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-21 22:17:58,488 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:58,488 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:58,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087700364] [2023-12-21 22:17:58,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2087700364] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:58,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:58,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:17:58,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690367413] [2023-12-21 22:17:58,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:58,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:17:58,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:58,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:17:58,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:58,490 INFO L87 Difference]: Start difference. First operand 77299 states and 93457 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:18:01,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:18:01,476 INFO L93 Difference]: Finished difference Result 152454 states and 182916 transitions. [2023-12-21 22:18:01,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:18:01,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 201 [2023-12-21 22:18:01,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:18:01,597 INFO L225 Difference]: With dead ends: 152454 [2023-12-21 22:18:01,597 INFO L226 Difference]: Without dead ends: 77291 [2023-12-21 22:18:01,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:18:01,651 INFO L413 NwaCegarLoop]: 4278 mSDtfsCounter, 344 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 8235 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 22:18:01,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 8235 Invalid, 34 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 22:18:01,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77291 states. [2023-12-21 22:18:04,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77291 to 77291. [2023-12-21 22:18:04,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77291 states, 72493 states have (on average 1.2156208185617923) internal successors, (88124), 73075 states have internal predecessors, (88124), 2036 states have call successors, (2036), 1792 states have call predecessors, (2036), 2760 states have return successors, (3280), 2424 states have call predecessors, (3280), 2036 states have call successors, (3280) [2023-12-21 22:18:04,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77291 states to 77291 states and 93440 transitions. [2023-12-21 22:18:04,702 INFO L78 Accepts]: Start accepts. Automaton has 77291 states and 93440 transitions. Word has length 201 [2023-12-21 22:18:04,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:18:04,702 INFO L495 AbstractCegarLoop]: Abstraction has 77291 states and 93440 transitions. [2023-12-21 22:18:04,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:18:04,703 INFO L276 IsEmpty]: Start isEmpty. Operand 77291 states and 93440 transitions. [2023-12-21 22:18:04,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-12-21 22:18:04,882 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:18:04,883 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:18:04,887 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 (37)] Ended with exit code 0 [2023-12-21 22:18:05,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:18:05,084 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:18:05,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:18:05,084 INFO L85 PathProgramCache]: Analyzing trace with hash 71768290, now seen corresponding path program 1 times [2023-12-21 22:18:05,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:18:05,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [573636569] [2023-12-21 22:18:05,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:18:05,085 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:18:05,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:18:05,086 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:18:05,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-21 22:18:05,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:18:05,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 22:18:05,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:18:05,476 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-21 22:18:05,476 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:18:05,476 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:18:05,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [573636569] [2023-12-21 22:18:05,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [573636569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:18:05,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:18:05,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:18:05,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700425419] [2023-12-21 22:18:05,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:18:05,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:18:05,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:18:05,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:18:05,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:18:05,478 INFO L87 Difference]: Start difference. First operand 77291 states and 93440 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:18:10,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:18:10,573 INFO L93 Difference]: Finished difference Result 220762 states and 264031 transitions. [2023-12-21 22:18:10,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:18:10,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 203 [2023-12-21 22:18:10,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:18:10,843 INFO L225 Difference]: With dead ends: 220762 [2023-12-21 22:18:10,843 INFO L226 Difference]: Without dead ends: 145608 [2023-12-21 22:18:11,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:18:11,049 INFO L413 NwaCegarLoop]: 4299 mSDtfsCounter, 4382 mSDsluCounter, 4412 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4388 SdHoareTripleChecker+Valid, 8711 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:18:11,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4388 Valid, 8711 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:18:11,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145608 states. [2023-12-21 22:18:16,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145608 to 145606. [2023-12-21 22:18:16,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145606 states, 136397 states have (on average 1.2038607887270247) internal successors, (164203), 137560 states have internal predecessors, (164203), 3879 states have call successors, (3879), 3392 states have call predecessors, (3879), 5328 states have return successors, (6379), 4655 states have call predecessors, (6379), 3879 states have call successors, (6379) [2023-12-21 22:18:16,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145606 states to 145606 states and 174461 transitions. [2023-12-21 22:18:16,973 INFO L78 Accepts]: Start accepts. Automaton has 145606 states and 174461 transitions. Word has length 203 [2023-12-21 22:18:16,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:18:16,974 INFO L495 AbstractCegarLoop]: Abstraction has 145606 states and 174461 transitions. [2023-12-21 22:18:16,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:18:16,974 INFO L276 IsEmpty]: Start isEmpty. Operand 145606 states and 174461 transitions. [2023-12-21 22:18:17,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-12-21 22:18:17,023 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:18:17,023 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:18:17,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2023-12-21 22:18:17,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:18:17,229 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:18:17,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:18:17,230 INFO L85 PathProgramCache]: Analyzing trace with hash 558842016, now seen corresponding path program 1 times [2023-12-21 22:18:17,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:18:17,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47434398] [2023-12-21 22:18:17,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:18:17,230 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:18:17,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:18:17,231 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:18:17,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-21 22:18:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:18:17,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:18:17,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:18:17,398 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-21 22:18:17,398 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:18:17,398 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:18:17,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47434398] [2023-12-21 22:18:17,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47434398] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:18:17,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:18:17,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:18:17,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096961977] [2023-12-21 22:18:17,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:18:17,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:18:17,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:18:17,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:18:17,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:18:17,400 INFO L87 Difference]: Start difference. First operand 145606 states and 174461 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:18:22,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:18:22,664 INFO L93 Difference]: Finished difference Result 289068 states and 344926 transitions. [2023-12-21 22:18:22,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:18:22,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 203 [2023-12-21 22:18:22,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:18:23,098 INFO L225 Difference]: With dead ends: 289068 [2023-12-21 22:18:23,098 INFO L226 Difference]: Without dead ends: 145599 [2023-12-21 22:18:23,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:18:23,192 INFO L413 NwaCegarLoop]: 4277 mSDtfsCounter, 342 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 8234 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 22:18:23,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 8234 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 22:18:23,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145599 states.