/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_label42+token_ring.08.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 07:25:09,407 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 07:25:09,476 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 07:25:09,480 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 07:25:09,481 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 07:25:09,503 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 07:25:09,504 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 07:25:09,504 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 07:25:09,505 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 07:25:09,507 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 07:25:09,508 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 07:25:09,508 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 07:25:09,508 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 07:25:09,509 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 07:25:09,509 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 07:25:09,510 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 07:25:09,510 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 07:25:09,510 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 07:25:09,510 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 07:25:09,510 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 07:25:09,511 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 07:25:09,511 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 07:25:09,511 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 07:25:09,511 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 07:25:09,511 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 07:25:09,511 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 07:25:09,512 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 07:25:09,512 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 07:25:09,512 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 07:25:09,512 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 07:25:09,513 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 07:25:09,513 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 07:25:09,513 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 07:25:09,513 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 07:25:09,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:25:09,513 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 07:25:09,513 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 07:25:09,514 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 07:25:09,514 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 07:25:09,514 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 07:25:09,514 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 07:25:09,515 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 07:25:09,515 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 07:25:09,515 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 07:25:09,515 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 07:25:09,515 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 07:25:09,515 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 07:25:09,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 07:25:09,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 07:25:09,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 07:25:09,734 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 07:25:09,734 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 07:25:09,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label42+token_ring.08.cil-2.c [2023-12-16 07:25:10,789 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 07:25:11,341 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 07:25:11,341 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label42+token_ring.08.cil-2.c [2023-12-16 07:25:11,394 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b0015546/47e13be9a391421fa608dcd1f892f663/FLAGa554326c1 [2023-12-16 07:25:11,407 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b0015546/47e13be9a391421fa608dcd1f892f663 [2023-12-16 07:25:11,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 07:25:11,410 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 07:25:11,412 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 07:25:11,412 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 07:25:11,415 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 07:25:11,416 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:25:11" (1/1) ... [2023-12-16 07:25:11,417 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3abfc2b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:25:11, skipping insertion in model container [2023-12-16 07:25:11,417 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:25:11" (1/1) ... [2023-12-16 07:25:11,570 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 07:25:12,799 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_label42+token_ring.08.cil-2.c[378560,378573] [2023-12-16 07:25:12,823 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_label42+token_ring.08.cil-2.c[383339,383352] [2023-12-16 07:25:12,994 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:25:13,010 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 07:25:13,638 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_label42+token_ring.08.cil-2.c[378560,378573] [2023-12-16 07:25:13,644 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_label42+token_ring.08.cil-2.c[383339,383352] [2023-12-16 07:25:13,669 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:25:13,711 INFO L206 MainTranslator]: Completed translation [2023-12-16 07:25:13,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:25:13 WrapperNode [2023-12-16 07:25:13,711 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 07:25:13,713 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 07:25:13,713 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 07:25:13,713 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 07:25:13,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:25:13" (1/1) ... [2023-12-16 07:25:13,790 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:25:13" (1/1) ... [2023-12-16 07:25:13,979 INFO L138 Inliner]: procedures = 61, calls = 66, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 12964 [2023-12-16 07:25:13,980 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 07:25:13,980 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 07:25:13,980 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 07:25:13,981 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 07:25:13,988 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:25:13" (1/1) ... [2023-12-16 07:25:13,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:25:13" (1/1) ... [2023-12-16 07:25:14,164 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:25:13" (1/1) ... [2023-12-16 07:25:14,262 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 07:25:14,262 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:25:13" (1/1) ... [2023-12-16 07:25:14,263 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:25:13" (1/1) ... [2023-12-16 07:25:14,430 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:25:13" (1/1) ... [2023-12-16 07:25:14,473 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:25:13" (1/1) ... [2023-12-16 07:25:14,496 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:25:13" (1/1) ... [2023-12-16 07:25:14,516 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:25:13" (1/1) ... [2023-12-16 07:25:14,558 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 07:25:14,559 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 07:25:14,559 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 07:25:14,559 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 07:25:14,560 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:25:13" (1/1) ... [2023-12-16 07:25:14,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:25:14,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 07:25:14,582 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) [2023-12-16 07:25:14,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 07:25:14,608 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 [2023-12-16 07:25:14,609 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 07:25:14,609 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 07:25:14,609 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 07:25:14,609 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 07:25:14,609 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 07:25:14,609 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 07:25:14,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 07:25:14,609 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-16 07:25:14,609 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-16 07:25:14,609 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 07:25:14,609 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 07:25:14,609 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 07:25:14,609 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 07:25:14,610 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 07:25:14,610 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 07:25:14,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 07:25:14,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 07:25:14,732 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 07:25:14,734 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 07:25:22,068 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 07:25:22,134 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 07:25:22,134 INFO L309 CfgBuilder]: Removed 12 assume(true) statements. [2023-12-16 07:25:22,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:25:22 BoogieIcfgContainer [2023-12-16 07:25:22,134 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 07:25:22,136 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 07:25:22,136 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 07:25:22,138 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 07:25:22,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:25:11" (1/3) ... [2023-12-16 07:25:22,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2217a125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:25:22, skipping insertion in model container [2023-12-16 07:25:22,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:25:13" (2/3) ... [2023-12-16 07:25:22,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2217a125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:25:22, skipping insertion in model container [2023-12-16 07:25:22,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:25:22" (3/3) ... [2023-12-16 07:25:22,140 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.08.cil-2.c [2023-12-16 07:25:22,151 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 07:25:22,152 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 07:25:22,217 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 07:25:22,221 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;@51712bbf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 07:25:22,221 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 07:25:22,231 INFO L276 IsEmpty]: Start isEmpty. Operand has 2387 states, 2353 states have (on average 1.87972800679983) internal successors, (4423), 2358 states have internal predecessors, (4423), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-16 07:25:22,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:22,250 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:22,251 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, 1] [2023-12-16 07:25:22,251 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:22,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:22,256 INFO L85 PathProgramCache]: Analyzing trace with hash -344256000, now seen corresponding path program 1 times [2023-12-16 07:25:22,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:22,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47429524] [2023-12-16 07:25:22,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:22,268 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:25:22,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:22,274 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) [2023-12-16 07:25:22,297 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 [2023-12-16 07:25:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:22,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:25:22,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:22,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:22,533 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:22,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:22,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47429524] [2023-12-16 07:25:22,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47429524] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:22,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:22,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:25:22,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014000185] [2023-12-16 07:25:22,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:22,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:25:22,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:22,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:25:22,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:25:22,572 INFO L87 Difference]: Start difference. First operand has 2387 states, 2353 states have (on average 1.87972800679983) internal successors, (4423), 2358 states have internal predecessors, (4423), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:22,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:22,719 INFO L93 Difference]: Finished difference Result 4769 states and 8933 transitions. [2023-12-16 07:25:22,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:25:22,724 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:22,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:22,744 INFO L225 Difference]: With dead ends: 4769 [2023-12-16 07:25:22,744 INFO L226 Difference]: Without dead ends: 2382 [2023-12-16 07:25:22,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:25:22,757 INFO L413 NwaCegarLoop]: 4347 mSDtfsCounter, 416 mSDsluCounter, 3959 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 8306 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 [2023-12-16 07:25:22,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 8306 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:25:22,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2382 states. [2023-12-16 07:25:22,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2382 to 2382. [2023-12-16 07:25:22,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2382 states, 2350 states have (on average 1.8429787234042554) internal successors, (4331), 2353 states have internal predecessors, (4331), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-16 07:25:22,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 4377 transitions. [2023-12-16 07:25:22,866 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 4377 transitions. Word has length 122 [2023-12-16 07:25:22,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:22,867 INFO L495 AbstractCegarLoop]: Abstraction has 2382 states and 4377 transitions. [2023-12-16 07:25:22,867 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:22,867 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 4377 transitions. [2023-12-16 07:25:22,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:22,869 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:22,869 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, 1] [2023-12-16 07:25:22,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 07:25:23,076 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 [2023-12-16 07:25:23,077 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:23,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:23,077 INFO L85 PathProgramCache]: Analyzing trace with hash 2021779070, now seen corresponding path program 1 times [2023-12-16 07:25:23,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:23,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [738484993] [2023-12-16 07:25:23,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:23,078 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 [2023-12-16 07:25:23,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:23,080 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) [2023-12-16 07:25:23,083 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 [2023-12-16 07:25:23,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:23,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:23,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:23,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:23,312 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:23,312 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:23,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [738484993] [2023-12-16 07:25:23,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [738484993] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:23,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:23,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:23,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078586318] [2023-12-16 07:25:23,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:23,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:25:23,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:23,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:25:23,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:25:23,320 INFO L87 Difference]: Start difference. First operand 2382 states and 4377 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:23,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:23,916 INFO L93 Difference]: Finished difference Result 2909 states and 5234 transitions. [2023-12-16 07:25:23,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:25:23,917 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:23,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:23,927 INFO L225 Difference]: With dead ends: 2909 [2023-12-16 07:25:23,928 INFO L226 Difference]: Without dead ends: 2662 [2023-12-16 07:25:23,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:25:23,930 INFO L413 NwaCegarLoop]: 4265 mSDtfsCounter, 4740 mSDsluCounter, 8685 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4756 SdHoareTripleChecker+Valid, 12950 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:25:23,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4756 Valid, 12950 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:25:23,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2023-12-16 07:25:23,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 2639. [2023-12-16 07:25:23,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2583 states have (on average 1.8246225319396052) internal successors, (4713), 2587 states have internal predecessors, (4713), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 07:25:23,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 4794 transitions. [2023-12-16 07:25:23,986 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 4794 transitions. Word has length 122 [2023-12-16 07:25:23,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:23,987 INFO L495 AbstractCegarLoop]: Abstraction has 2639 states and 4794 transitions. [2023-12-16 07:25:23,987 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:23,987 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 4794 transitions. [2023-12-16 07:25:23,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:23,988 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:23,988 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, 1] [2023-12-16 07:25:23,993 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 [2023-12-16 07:25:24,192 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 [2023-12-16 07:25:24,193 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:24,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:24,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1745853758, now seen corresponding path program 1 times [2023-12-16 07:25:24,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:24,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [896579210] [2023-12-16 07:25:24,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:24,194 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 [2023-12-16 07:25:24,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:24,196 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) [2023-12-16 07:25:24,247 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 [2023-12-16 07:25:24,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:24,348 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:24,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:24,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:24,412 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:24,412 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:24,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [896579210] [2023-12-16 07:25:24,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [896579210] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:24,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:24,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:24,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686861289] [2023-12-16 07:25:24,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:24,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:25:24,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:24,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:25:24,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:25:24,414 INFO L87 Difference]: Start difference. First operand 2639 states and 4794 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:24,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:24,822 INFO L93 Difference]: Finished difference Result 3143 states and 5613 transitions. [2023-12-16 07:25:24,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:25:24,822 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:24,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:24,831 INFO L225 Difference]: With dead ends: 3143 [2023-12-16 07:25:24,831 INFO L226 Difference]: Without dead ends: 2639 [2023-12-16 07:25:24,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:25:24,834 INFO L413 NwaCegarLoop]: 4221 mSDtfsCounter, 4512 mSDsluCounter, 8326 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4528 SdHoareTripleChecker+Valid, 12547 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:25:24,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4528 Valid, 12547 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:25:24,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2023-12-16 07:25:24,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2639. [2023-12-16 07:25:24,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2583 states have (on average 1.821912504839334) internal successors, (4706), 2587 states have internal predecessors, (4706), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 07:25:24,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 4787 transitions. [2023-12-16 07:25:24,892 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 4787 transitions. Word has length 122 [2023-12-16 07:25:24,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:24,892 INFO L495 AbstractCegarLoop]: Abstraction has 2639 states and 4787 transitions. [2023-12-16 07:25:24,893 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:24,893 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 4787 transitions. [2023-12-16 07:25:24,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:24,894 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:24,894 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, 1] [2023-12-16 07:25:24,900 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 (4)] Ended with exit code 0 [2023-12-16 07:25:25,098 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 [2023-12-16 07:25:25,098 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:25,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:25,099 INFO L85 PathProgramCache]: Analyzing trace with hash -2003825026, now seen corresponding path program 1 times [2023-12-16 07:25:25,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:25,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132212778] [2023-12-16 07:25:25,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:25,100 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 [2023-12-16 07:25:25,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:25,101 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) [2023-12-16 07:25:25,102 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 [2023-12-16 07:25:25,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:25,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:25,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:25,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:25,264 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:25,264 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:25,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1132212778] [2023-12-16 07:25:25,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1132212778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:25,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:25,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:25,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595555548] [2023-12-16 07:25:25,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:25,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:25:25,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:25,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:25:25,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:25:25,266 INFO L87 Difference]: Start difference. First operand 2639 states and 4787 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:25,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:25,625 INFO L93 Difference]: Finished difference Result 3143 states and 5599 transitions. [2023-12-16 07:25:25,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:25:25,626 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:25,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:25,634 INFO L225 Difference]: With dead ends: 3143 [2023-12-16 07:25:25,634 INFO L226 Difference]: Without dead ends: 2639 [2023-12-16 07:25:25,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:25:25,637 INFO L413 NwaCegarLoop]: 4218 mSDtfsCounter, 4506 mSDsluCounter, 8322 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4522 SdHoareTripleChecker+Valid, 12540 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:25:25,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4522 Valid, 12540 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:25:25,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2023-12-16 07:25:25,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2639. [2023-12-16 07:25:25,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2583 states have (on average 1.8192024777390632) internal successors, (4699), 2587 states have internal predecessors, (4699), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 07:25:25,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 4780 transitions. [2023-12-16 07:25:25,691 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 4780 transitions. Word has length 122 [2023-12-16 07:25:25,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:25,691 INFO L495 AbstractCegarLoop]: Abstraction has 2639 states and 4780 transitions. [2023-12-16 07:25:25,692 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:25,692 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 4780 transitions. [2023-12-16 07:25:25,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:25,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:25,693 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, 1] [2023-12-16 07:25:25,697 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 [2023-12-16 07:25:25,897 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 [2023-12-16 07:25:25,897 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:25,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:25,898 INFO L85 PathProgramCache]: Analyzing trace with hash 257748224, now seen corresponding path program 1 times [2023-12-16 07:25:25,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:25,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517212589] [2023-12-16 07:25:25,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:25,898 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 [2023-12-16 07:25:25,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:25,899 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) [2023-12-16 07:25:25,901 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 [2023-12-16 07:25:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:26,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:26,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:26,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:26,073 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:26,073 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:26,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1517212589] [2023-12-16 07:25:26,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1517212589] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:26,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:26,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:26,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889891503] [2023-12-16 07:25:26,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:26,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:25:26,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:26,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:25:26,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:25:26,074 INFO L87 Difference]: Start difference. First operand 2639 states and 4780 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:26,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:26,415 INFO L93 Difference]: Finished difference Result 3143 states and 5585 transitions. [2023-12-16 07:25:26,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:25:26,416 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:26,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:26,424 INFO L225 Difference]: With dead ends: 3143 [2023-12-16 07:25:26,424 INFO L226 Difference]: Without dead ends: 2639 [2023-12-16 07:25:26,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:25:26,427 INFO L413 NwaCegarLoop]: 4215 mSDtfsCounter, 4500 mSDsluCounter, 8318 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4516 SdHoareTripleChecker+Valid, 12533 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:25:26,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4516 Valid, 12533 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:25:26,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2023-12-16 07:25:26,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2639. [2023-12-16 07:25:26,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2583 states have (on average 1.816492450638792) internal successors, (4692), 2587 states have internal predecessors, (4692), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 07:25:26,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 4773 transitions. [2023-12-16 07:25:26,477 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 4773 transitions. Word has length 122 [2023-12-16 07:25:26,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:26,478 INFO L495 AbstractCegarLoop]: Abstraction has 2639 states and 4773 transitions. [2023-12-16 07:25:26,478 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:26,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 4773 transitions. [2023-12-16 07:25:26,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:26,479 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:26,479 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, 1] [2023-12-16 07:25:26,485 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 [2023-12-16 07:25:26,683 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 [2023-12-16 07:25:26,683 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:26,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:26,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1681347008, now seen corresponding path program 1 times [2023-12-16 07:25:26,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:26,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [617601400] [2023-12-16 07:25:26,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:26,684 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 [2023-12-16 07:25:26,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:26,686 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) [2023-12-16 07:25:26,716 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 [2023-12-16 07:25:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:26,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:26,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:26,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:26,841 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:26,841 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:26,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [617601400] [2023-12-16 07:25:26,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [617601400] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:26,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:26,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:26,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046777641] [2023-12-16 07:25:26,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:26,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:25:26,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:26,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:25:26,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:25:26,843 INFO L87 Difference]: Start difference. First operand 2639 states and 4773 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:27,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:27,277 INFO L93 Difference]: Finished difference Result 3143 states and 5571 transitions. [2023-12-16 07:25:27,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:25:27,277 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:27,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:27,285 INFO L225 Difference]: With dead ends: 3143 [2023-12-16 07:25:27,285 INFO L226 Difference]: Without dead ends: 2639 [2023-12-16 07:25:27,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:25:27,287 INFO L413 NwaCegarLoop]: 4212 mSDtfsCounter, 4493 mSDsluCounter, 8314 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4509 SdHoareTripleChecker+Valid, 12526 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:25:27,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4509 Valid, 12526 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:25:27,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2023-12-16 07:25:27,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2639. [2023-12-16 07:25:27,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2583 states have (on average 1.8137824235385211) internal successors, (4685), 2587 states have internal predecessors, (4685), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 07:25:27,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 4766 transitions. [2023-12-16 07:25:27,339 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 4766 transitions. Word has length 122 [2023-12-16 07:25:27,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:27,339 INFO L495 AbstractCegarLoop]: Abstraction has 2639 states and 4766 transitions. [2023-12-16 07:25:27,340 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:27,340 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 4766 transitions. [2023-12-16 07:25:27,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:27,341 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:27,341 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, 1] [2023-12-16 07:25:27,359 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 [2023-12-16 07:25:27,552 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 [2023-12-16 07:25:27,552 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:27,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:27,553 INFO L85 PathProgramCache]: Analyzing trace with hash 917749632, now seen corresponding path program 1 times [2023-12-16 07:25:27,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:27,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372443650] [2023-12-16 07:25:27,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:27,553 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 [2023-12-16 07:25:27,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:27,555 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) [2023-12-16 07:25:27,586 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 [2023-12-16 07:25:27,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:27,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:27,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:27,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:27,713 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:27,714 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:27,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372443650] [2023-12-16 07:25:27,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372443650] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:27,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:27,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:27,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013758385] [2023-12-16 07:25:27,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:27,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:25:27,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:27,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:25:27,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:25:27,715 INFO L87 Difference]: Start difference. First operand 2639 states and 4766 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:28,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:28,077 INFO L93 Difference]: Finished difference Result 3143 states and 5557 transitions. [2023-12-16 07:25:28,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:25:28,080 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:28,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:28,089 INFO L225 Difference]: With dead ends: 3143 [2023-12-16 07:25:28,089 INFO L226 Difference]: Without dead ends: 2639 [2023-12-16 07:25:28,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:25:28,091 INFO L413 NwaCegarLoop]: 4209 mSDtfsCounter, 4487 mSDsluCounter, 8310 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4503 SdHoareTripleChecker+Valid, 12519 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:25:28,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4503 Valid, 12519 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:25:28,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2023-12-16 07:25:28,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2639. [2023-12-16 07:25:28,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2583 states have (on average 1.81107239643825) internal successors, (4678), 2587 states have internal predecessors, (4678), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 07:25:28,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 4759 transitions. [2023-12-16 07:25:28,152 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 4759 transitions. Word has length 122 [2023-12-16 07:25:28,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:28,152 INFO L495 AbstractCegarLoop]: Abstraction has 2639 states and 4759 transitions. [2023-12-16 07:25:28,153 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:28,153 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 4759 transitions. [2023-12-16 07:25:28,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:28,154 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:28,154 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, 1] [2023-12-16 07:25:28,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 07:25:28,366 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 [2023-12-16 07:25:28,367 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:28,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:28,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1971422784, now seen corresponding path program 1 times [2023-12-16 07:25:28,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:28,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [753804349] [2023-12-16 07:25:28,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:28,368 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 [2023-12-16 07:25:28,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:28,369 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) [2023-12-16 07:25:28,371 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 [2023-12-16 07:25:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:28,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:28,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:28,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:28,515 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:28,515 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:28,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [753804349] [2023-12-16 07:25:28,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [753804349] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:28,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:28,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:28,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111076288] [2023-12-16 07:25:28,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:28,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:25:28,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:28,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:25:28,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:25:28,516 INFO L87 Difference]: Start difference. First operand 2639 states and 4759 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:28,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:28,845 INFO L93 Difference]: Finished difference Result 3143 states and 5543 transitions. [2023-12-16 07:25:28,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:25:28,846 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:28,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:28,853 INFO L225 Difference]: With dead ends: 3143 [2023-12-16 07:25:28,853 INFO L226 Difference]: Without dead ends: 2639 [2023-12-16 07:25:28,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:25:28,855 INFO L413 NwaCegarLoop]: 4206 mSDtfsCounter, 4481 mSDsluCounter, 8306 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4497 SdHoareTripleChecker+Valid, 12512 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:25:28,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4497 Valid, 12512 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:25:28,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2023-12-16 07:25:28,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2639. [2023-12-16 07:25:28,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2583 states have (on average 1.8083623693379791) internal successors, (4671), 2587 states have internal predecessors, (4671), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 07:25:28,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 4752 transitions. [2023-12-16 07:25:28,900 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 4752 transitions. Word has length 122 [2023-12-16 07:25:28,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:28,900 INFO L495 AbstractCegarLoop]: Abstraction has 2639 states and 4752 transitions. [2023-12-16 07:25:28,900 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:28,900 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 4752 transitions. [2023-12-16 07:25:28,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:28,901 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:28,901 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, 1] [2023-12-16 07:25:28,907 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 [2023-12-16 07:25:29,105 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 [2023-12-16 07:25:29,105 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:29,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:29,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1451222912, now seen corresponding path program 1 times [2023-12-16 07:25:29,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:29,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419339490] [2023-12-16 07:25:29,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:29,106 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 [2023-12-16 07:25:29,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:29,107 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) [2023-12-16 07:25:29,109 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 [2023-12-16 07:25:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:29,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:29,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:29,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:29,260 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:29,261 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:29,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419339490] [2023-12-16 07:25:29,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419339490] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:29,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:29,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:29,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531424438] [2023-12-16 07:25:29,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:29,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:25:29,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:29,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:25:29,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:25:29,263 INFO L87 Difference]: Start difference. First operand 2639 states and 4752 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:29,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:29,606 INFO L93 Difference]: Finished difference Result 3143 states and 5529 transitions. [2023-12-16 07:25:29,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:25:29,606 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:29,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:29,614 INFO L225 Difference]: With dead ends: 3143 [2023-12-16 07:25:29,614 INFO L226 Difference]: Without dead ends: 2639 [2023-12-16 07:25:29,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:25:29,616 INFO L413 NwaCegarLoop]: 4203 mSDtfsCounter, 4475 mSDsluCounter, 8302 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4491 SdHoareTripleChecker+Valid, 12505 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:25:29,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4491 Valid, 12505 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:25:29,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2023-12-16 07:25:29,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2639. [2023-12-16 07:25:29,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2583 states have (on average 1.805652342237708) internal successors, (4664), 2587 states have internal predecessors, (4664), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 07:25:29,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 4745 transitions. [2023-12-16 07:25:29,665 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 4745 transitions. Word has length 122 [2023-12-16 07:25:29,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:29,666 INFO L495 AbstractCegarLoop]: Abstraction has 2639 states and 4745 transitions. [2023-12-16 07:25:29,666 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:29,666 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 4745 transitions. [2023-12-16 07:25:29,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:29,667 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:29,667 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, 1] [2023-12-16 07:25:29,673 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 [2023-12-16 07:25:29,870 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 [2023-12-16 07:25:29,871 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:29,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:29,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1752146368, now seen corresponding path program 1 times [2023-12-16 07:25:29,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:29,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065439276] [2023-12-16 07:25:29,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:29,872 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 [2023-12-16 07:25:29,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:29,873 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) [2023-12-16 07:25:29,904 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 [2023-12-16 07:25:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:29,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:29,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:30,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:30,019 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:30,019 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:30,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2065439276] [2023-12-16 07:25:30,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2065439276] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:30,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:30,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:30,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409543165] [2023-12-16 07:25:30,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:30,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:25:30,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:30,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:25:30,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:25:30,020 INFO L87 Difference]: Start difference. First operand 2639 states and 4745 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:30,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:30,442 INFO L93 Difference]: Finished difference Result 3261 states and 5707 transitions. [2023-12-16 07:25:30,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:25:30,442 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:30,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:30,459 INFO L225 Difference]: With dead ends: 3261 [2023-12-16 07:25:30,460 INFO L226 Difference]: Without dead ends: 2757 [2023-12-16 07:25:30,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:25:30,464 INFO L413 NwaCegarLoop]: 4201 mSDtfsCounter, 4547 mSDsluCounter, 8298 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4563 SdHoareTripleChecker+Valid, 12499 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:25:30,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4563 Valid, 12499 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:25:30,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2757 states. [2023-12-16 07:25:30,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2757 to 2757. [2023-12-16 07:25:30,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2757 states, 2695 states have (on average 1.7888682745825604) internal successors, (4821), 2699 states have internal predecessors, (4821), 43 states have call successors, (43), 17 states have call predecessors, (43), 17 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-16 07:25:30,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2757 states to 2757 states and 4906 transitions. [2023-12-16 07:25:30,591 INFO L78 Accepts]: Start accepts. Automaton has 2757 states and 4906 transitions. Word has length 122 [2023-12-16 07:25:30,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:30,591 INFO L495 AbstractCegarLoop]: Abstraction has 2757 states and 4906 transitions. [2023-12-16 07:25:30,591 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:30,591 INFO L276 IsEmpty]: Start isEmpty. Operand 2757 states and 4906 transitions. [2023-12-16 07:25:30,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:30,592 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:30,592 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, 1] [2023-12-16 07:25:30,598 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 [2023-12-16 07:25:30,796 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 [2023-12-16 07:25:30,796 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:30,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:30,797 INFO L85 PathProgramCache]: Analyzing trace with hash 2009170049, now seen corresponding path program 1 times [2023-12-16 07:25:30,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:30,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903378348] [2023-12-16 07:25:30,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:30,798 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 [2023-12-16 07:25:30,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:30,803 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) [2023-12-16 07:25:30,804 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 [2023-12-16 07:25:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:30,899 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:30,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:30,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:30,951 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:30,951 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:30,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903378348] [2023-12-16 07:25:30,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [903378348] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:30,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:30,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:30,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001861076] [2023-12-16 07:25:30,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:30,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:25:30,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:30,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:25:30,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:25:30,954 INFO L87 Difference]: Start difference. First operand 2757 states and 4906 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:31,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:31,385 INFO L93 Difference]: Finished difference Result 3497 states and 6029 transitions. [2023-12-16 07:25:31,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:25:31,385 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:31,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:31,391 INFO L225 Difference]: With dead ends: 3497 [2023-12-16 07:25:31,391 INFO L226 Difference]: Without dead ends: 2875 [2023-12-16 07:25:31,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:25:31,393 INFO L413 NwaCegarLoop]: 4198 mSDtfsCounter, 4540 mSDsluCounter, 8294 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4556 SdHoareTripleChecker+Valid, 12492 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:25:31,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4556 Valid, 12492 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:25:31,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2875 states. [2023-12-16 07:25:31,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2875 to 2875. [2023-12-16 07:25:31,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2807 states have (on average 1.7719985749910936) internal successors, (4974), 2811 states have internal predecessors, (4974), 45 states have call successors, (45), 21 states have call predecessors, (45), 21 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 07:25:31,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 5063 transitions. [2023-12-16 07:25:31,446 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 5063 transitions. Word has length 122 [2023-12-16 07:25:31,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:31,446 INFO L495 AbstractCegarLoop]: Abstraction has 2875 states and 5063 transitions. [2023-12-16 07:25:31,446 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:31,446 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 5063 transitions. [2023-12-16 07:25:31,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:31,447 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:31,447 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, 1] [2023-12-16 07:25:31,451 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 [2023-12-16 07:25:31,651 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 [2023-12-16 07:25:31,651 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:31,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:31,652 INFO L85 PathProgramCache]: Analyzing trace with hash -934412029, now seen corresponding path program 1 times [2023-12-16 07:25:31,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:31,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1077990311] [2023-12-16 07:25:31,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:31,652 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 [2023-12-16 07:25:31,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:31,653 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) [2023-12-16 07:25:31,657 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 [2023-12-16 07:25:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:31,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:31,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:31,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:31,813 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:31,813 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:31,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1077990311] [2023-12-16 07:25:31,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1077990311] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:31,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:31,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:31,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148219918] [2023-12-16 07:25:31,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:31,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:25:31,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:31,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:25:31,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:25:31,814 INFO L87 Difference]: Start difference. First operand 2875 states and 5063 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:32,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:32,215 INFO L93 Difference]: Finished difference Result 3733 states and 6343 transitions. [2023-12-16 07:25:32,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:25:32,228 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:32,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:32,235 INFO L225 Difference]: With dead ends: 3733 [2023-12-16 07:25:32,235 INFO L226 Difference]: Without dead ends: 2993 [2023-12-16 07:25:32,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:25:32,238 INFO L413 NwaCegarLoop]: 4195 mSDtfsCounter, 4534 mSDsluCounter, 8290 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4550 SdHoareTripleChecker+Valid, 12485 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:25:32,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4550 Valid, 12485 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:25:32,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2993 states. [2023-12-16 07:25:32,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2993 to 2993. [2023-12-16 07:25:32,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2993 states, 2919 states have (on average 1.7550531003768415) internal successors, (5123), 2923 states have internal predecessors, (5123), 47 states have call successors, (47), 25 states have call predecessors, (47), 25 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2023-12-16 07:25:32,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2993 states to 2993 states and 5216 transitions. [2023-12-16 07:25:32,301 INFO L78 Accepts]: Start accepts. Automaton has 2993 states and 5216 transitions. Word has length 122 [2023-12-16 07:25:32,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:32,301 INFO L495 AbstractCegarLoop]: Abstraction has 2993 states and 5216 transitions. [2023-12-16 07:25:32,301 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:32,302 INFO L276 IsEmpty]: Start isEmpty. Operand 2993 states and 5216 transitions. [2023-12-16 07:25:32,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:32,302 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:32,303 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, 1] [2023-12-16 07:25:32,313 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 [2023-12-16 07:25:32,507 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 [2023-12-16 07:25:32,507 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:32,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:32,508 INFO L85 PathProgramCache]: Analyzing trace with hash -280850300, now seen corresponding path program 1 times [2023-12-16 07:25:32,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:32,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [216332079] [2023-12-16 07:25:32,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:32,508 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 [2023-12-16 07:25:32,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:32,509 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) [2023-12-16 07:25:32,520 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 [2023-12-16 07:25:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:32,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:32,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:32,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:32,662 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:32,662 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:32,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [216332079] [2023-12-16 07:25:32,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [216332079] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:32,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:32,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:32,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945093312] [2023-12-16 07:25:32,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:32,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:25:32,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:32,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:25:32,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:25:32,663 INFO L87 Difference]: Start difference. First operand 2993 states and 5216 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:33,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:33,080 INFO L93 Difference]: Finished difference Result 3969 states and 6649 transitions. [2023-12-16 07:25:33,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:25:33,080 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:33,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:33,085 INFO L225 Difference]: With dead ends: 3969 [2023-12-16 07:25:33,085 INFO L226 Difference]: Without dead ends: 3111 [2023-12-16 07:25:33,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:25:33,088 INFO L413 NwaCegarLoop]: 4192 mSDtfsCounter, 4526 mSDsluCounter, 8286 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4542 SdHoareTripleChecker+Valid, 12478 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:25:33,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4542 Valid, 12478 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:25:33,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3111 states. [2023-12-16 07:25:33,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3111 to 3111. [2023-12-16 07:25:33,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3111 states, 3031 states have (on average 1.7380402507423294) internal successors, (5268), 3035 states have internal predecessors, (5268), 49 states have call successors, (49), 29 states have call predecessors, (49), 29 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 07:25:33,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3111 states to 3111 states and 5365 transitions. [2023-12-16 07:25:33,152 INFO L78 Accepts]: Start accepts. Automaton has 3111 states and 5365 transitions. Word has length 122 [2023-12-16 07:25:33,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:33,153 INFO L495 AbstractCegarLoop]: Abstraction has 3111 states and 5365 transitions. [2023-12-16 07:25:33,153 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:33,154 INFO L276 IsEmpty]: Start isEmpty. Operand 3111 states and 5365 transitions. [2023-12-16 07:25:33,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:33,155 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:33,155 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, 1] [2023-12-16 07:25:33,160 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 [2023-12-16 07:25:33,360 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 [2023-12-16 07:25:33,360 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:33,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:33,361 INFO L85 PathProgramCache]: Analyzing trace with hash -2114788924, now seen corresponding path program 1 times [2023-12-16 07:25:33,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:33,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019115588] [2023-12-16 07:25:33,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:33,361 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 [2023-12-16 07:25:33,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:33,362 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) [2023-12-16 07:25:33,363 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 [2023-12-16 07:25:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:33,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:33,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:33,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:33,505 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:33,505 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:33,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019115588] [2023-12-16 07:25:33,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2019115588] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:33,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:33,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:33,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482804829] [2023-12-16 07:25:33,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:33,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:25:33,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:33,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:25:33,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:25:33,506 INFO L87 Difference]: Start difference. First operand 3111 states and 5365 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:33,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:33,999 INFO L93 Difference]: Finished difference Result 4205 states and 6947 transitions. [2023-12-16 07:25:33,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:25:33,999 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:33,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:34,005 INFO L225 Difference]: With dead ends: 4205 [2023-12-16 07:25:34,005 INFO L226 Difference]: Without dead ends: 3229 [2023-12-16 07:25:34,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:25:34,009 INFO L413 NwaCegarLoop]: 4189 mSDtfsCounter, 4519 mSDsluCounter, 8282 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4535 SdHoareTripleChecker+Valid, 12471 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:25:34,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4535 Valid, 12471 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:25:34,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3229 states. [2023-12-16 07:25:34,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3229 to 3229. [2023-12-16 07:25:34,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3229 states, 3143 states have (on average 1.720967228762329) internal successors, (5409), 3147 states have internal predecessors, (5409), 51 states have call successors, (51), 33 states have call predecessors, (51), 33 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-16 07:25:34,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3229 states to 3229 states and 5510 transitions. [2023-12-16 07:25:34,093 INFO L78 Accepts]: Start accepts. Automaton has 3229 states and 5510 transitions. Word has length 122 [2023-12-16 07:25:34,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:34,093 INFO L495 AbstractCegarLoop]: Abstraction has 3229 states and 5510 transitions. [2023-12-16 07:25:34,094 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:34,094 INFO L276 IsEmpty]: Start isEmpty. Operand 3229 states and 5510 transitions. [2023-12-16 07:25:34,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:34,095 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:34,095 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, 1] [2023-12-16 07:25:34,102 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 [2023-12-16 07:25:34,301 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 [2023-12-16 07:25:34,301 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:34,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:34,302 INFO L85 PathProgramCache]: Analyzing trace with hash -683196317, now seen corresponding path program 1 times [2023-12-16 07:25:34,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:34,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [184026656] [2023-12-16 07:25:34,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:34,302 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 [2023-12-16 07:25:34,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:34,303 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) [2023-12-16 07:25:34,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 07:25:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:34,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:34,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:34,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:34,465 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:34,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:34,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [184026656] [2023-12-16 07:25:34,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [184026656] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:34,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:34,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:34,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879949987] [2023-12-16 07:25:34,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:34,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:25:34,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:34,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:25:34,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:25:34,467 INFO L87 Difference]: Start difference. First operand 3229 states and 5510 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:34,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:34,891 INFO L93 Difference]: Finished difference Result 4441 states and 7237 transitions. [2023-12-16 07:25:34,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:25:34,892 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:34,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:34,898 INFO L225 Difference]: With dead ends: 4441 [2023-12-16 07:25:34,898 INFO L226 Difference]: Without dead ends: 3347 [2023-12-16 07:25:34,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:25:34,901 INFO L413 NwaCegarLoop]: 4186 mSDtfsCounter, 4512 mSDsluCounter, 8278 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4528 SdHoareTripleChecker+Valid, 12464 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:25:34,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4528 Valid, 12464 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:25:34,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3347 states. [2023-12-16 07:25:34,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3347 to 3347. [2023-12-16 07:25:34,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3347 states, 3255 states have (on average 1.7038402457757296) internal successors, (5546), 3259 states have internal predecessors, (5546), 53 states have call successors, (53), 37 states have call predecessors, (53), 37 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-16 07:25:34,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3347 states to 3347 states and 5651 transitions. [2023-12-16 07:25:34,986 INFO L78 Accepts]: Start accepts. Automaton has 3347 states and 5651 transitions. Word has length 122 [2023-12-16 07:25:34,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:34,987 INFO L495 AbstractCegarLoop]: Abstraction has 3347 states and 5651 transitions. [2023-12-16 07:25:34,987 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:34,987 INFO L276 IsEmpty]: Start isEmpty. Operand 3347 states and 5651 transitions. [2023-12-16 07:25:34,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:34,988 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:34,988 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, 1] [2023-12-16 07:25:34,995 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 [2023-12-16 07:25:35,193 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 [2023-12-16 07:25:35,193 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:35,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:35,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1616568739, now seen corresponding path program 1 times [2023-12-16 07:25:35,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:35,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154618475] [2023-12-16 07:25:35,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:35,194 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 [2023-12-16 07:25:35,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:35,195 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) [2023-12-16 07:25:35,198 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 [2023-12-16 07:25:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:35,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:35,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:35,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:35,355 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:35,355 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:35,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1154618475] [2023-12-16 07:25:35,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1154618475] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:35,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:35,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:35,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116790515] [2023-12-16 07:25:35,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:35,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:25:35,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:35,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:25:35,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:25:35,357 INFO L87 Difference]: Start difference. First operand 3347 states and 5651 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:35,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:35,805 INFO L93 Difference]: Finished difference Result 4677 states and 7519 transitions. [2023-12-16 07:25:35,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:25:35,805 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:35,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:35,815 INFO L225 Difference]: With dead ends: 4677 [2023-12-16 07:25:35,815 INFO L226 Difference]: Without dead ends: 3465 [2023-12-16 07:25:35,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:25:35,819 INFO L413 NwaCegarLoop]: 4183 mSDtfsCounter, 4505 mSDsluCounter, 8274 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4521 SdHoareTripleChecker+Valid, 12457 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:25:35,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4521 Valid, 12457 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:25:35,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3465 states. [2023-12-16 07:25:35,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3465 to 3465. [2023-12-16 07:25:35,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3465 states, 3367 states have (on average 1.6866646866646866) internal successors, (5679), 3371 states have internal predecessors, (5679), 55 states have call successors, (55), 41 states have call predecessors, (55), 41 states have return successors, (54), 53 states have call predecessors, (54), 53 states have call successors, (54) [2023-12-16 07:25:35,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3465 states to 3465 states and 5788 transitions. [2023-12-16 07:25:35,927 INFO L78 Accepts]: Start accepts. Automaton has 3465 states and 5788 transitions. Word has length 122 [2023-12-16 07:25:35,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:35,927 INFO L495 AbstractCegarLoop]: Abstraction has 3465 states and 5788 transitions. [2023-12-16 07:25:35,927 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:35,927 INFO L276 IsEmpty]: Start isEmpty. Operand 3465 states and 5788 transitions. [2023-12-16 07:25:35,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:35,928 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:35,928 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, 1] [2023-12-16 07:25:35,935 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-12-16 07:25:36,132 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 [2023-12-16 07:25:36,132 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:36,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:36,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1461021442, now seen corresponding path program 1 times [2023-12-16 07:25:36,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:36,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1520127882] [2023-12-16 07:25:36,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:36,133 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 [2023-12-16 07:25:36,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:36,149 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) [2023-12-16 07:25:36,180 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 [2023-12-16 07:25:36,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:36,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:36,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:36,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:36,302 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:36,302 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:36,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1520127882] [2023-12-16 07:25:36,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1520127882] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:36,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:36,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:36,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654537398] [2023-12-16 07:25:36,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:36,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:25:36,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:36,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:25:36,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:25:36,303 INFO L87 Difference]: Start difference. First operand 3465 states and 5788 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:36,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:36,706 INFO L93 Difference]: Finished difference Result 4913 states and 7793 transitions. [2023-12-16 07:25:36,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:25:36,707 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:36,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:36,713 INFO L225 Difference]: With dead ends: 4913 [2023-12-16 07:25:36,714 INFO L226 Difference]: Without dead ends: 3583 [2023-12-16 07:25:36,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:25:36,716 INFO L413 NwaCegarLoop]: 4180 mSDtfsCounter, 4498 mSDsluCounter, 8270 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4514 SdHoareTripleChecker+Valid, 12450 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:25:36,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4514 Valid, 12450 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:25:36,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3583 states. [2023-12-16 07:25:36,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3583 to 3583. [2023-12-16 07:25:36,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3583 states, 3479 states have (on average 1.6694452428858868) internal successors, (5808), 3483 states have internal predecessors, (5808), 57 states have call successors, (57), 45 states have call predecessors, (57), 45 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-16 07:25:36,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3583 states to 3583 states and 5921 transitions. [2023-12-16 07:25:36,789 INFO L78 Accepts]: Start accepts. Automaton has 3583 states and 5921 transitions. Word has length 122 [2023-12-16 07:25:36,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:36,789 INFO L495 AbstractCegarLoop]: Abstraction has 3583 states and 5921 transitions. [2023-12-16 07:25:36,790 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:36,790 INFO L276 IsEmpty]: Start isEmpty. Operand 3583 states and 5921 transitions. [2023-12-16 07:25:36,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:36,791 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:36,791 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, 1] [2023-12-16 07:25:36,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-16 07:25:36,996 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 [2023-12-16 07:25:36,997 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:36,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:36,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1222615998, now seen corresponding path program 1 times [2023-12-16 07:25:36,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:36,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1073398189] [2023-12-16 07:25:36,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:36,998 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 [2023-12-16 07:25:36,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:36,999 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) [2023-12-16 07:25:37,003 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 [2023-12-16 07:25:37,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:37,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:37,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:37,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:37,117 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:37,117 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:37,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1073398189] [2023-12-16 07:25:37,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1073398189] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:37,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:37,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:37,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619700994] [2023-12-16 07:25:37,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:37,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:25:37,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:37,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:25:37,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:25:37,120 INFO L87 Difference]: Start difference. First operand 3583 states and 5921 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:37,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:37,257 INFO L93 Difference]: Finished difference Result 5134 states and 8038 transitions. [2023-12-16 07:25:37,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:25:37,258 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:37,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:37,263 INFO L225 Difference]: With dead ends: 5134 [2023-12-16 07:25:37,263 INFO L226 Difference]: Without dead ends: 3687 [2023-12-16 07:25:37,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:25:37,267 INFO L413 NwaCegarLoop]: 4299 mSDtfsCounter, 74 mSDsluCounter, 8586 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 12885 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 [2023-12-16 07:25:37,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 12885 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:25:37,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2023-12-16 07:25:37,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 3587. [2023-12-16 07:25:37,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3587 states, 3483 states have (on average 1.6640826873385013) internal successors, (5796), 3487 states have internal predecessors, (5796), 57 states have call successors, (57), 45 states have call predecessors, (57), 45 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-16 07:25:37,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3587 states to 3587 states and 5909 transitions. [2023-12-16 07:25:37,402 INFO L78 Accepts]: Start accepts. Automaton has 3587 states and 5909 transitions. Word has length 122 [2023-12-16 07:25:37,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:37,402 INFO L495 AbstractCegarLoop]: Abstraction has 3587 states and 5909 transitions. [2023-12-16 07:25:37,402 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:37,403 INFO L276 IsEmpty]: Start isEmpty. Operand 3587 states and 5909 transitions. [2023-12-16 07:25:37,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:37,403 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:37,403 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, 1] [2023-12-16 07:25:37,408 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 [2023-12-16 07:25:37,607 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 [2023-12-16 07:25:37,608 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:37,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:37,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1929848832, now seen corresponding path program 1 times [2023-12-16 07:25:37,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:37,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115492823] [2023-12-16 07:25:37,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:37,609 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 [2023-12-16 07:25:37,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:37,610 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) [2023-12-16 07:25:37,620 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 [2023-12-16 07:25:37,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:37,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:37,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:37,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:37,762 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:37,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:37,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115492823] [2023-12-16 07:25:37,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [115492823] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:37,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:37,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:37,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482090187] [2023-12-16 07:25:37,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:37,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:25:37,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:37,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:25:37,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:25:37,764 INFO L87 Difference]: Start difference. First operand 3587 states and 5909 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:37,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:37,897 INFO L93 Difference]: Finished difference Result 5130 states and 7998 transitions. [2023-12-16 07:25:37,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:25:37,898 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:37,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:37,903 INFO L225 Difference]: With dead ends: 5130 [2023-12-16 07:25:37,903 INFO L226 Difference]: Without dead ends: 3679 [2023-12-16 07:25:37,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:25:37,907 INFO L413 NwaCegarLoop]: 4299 mSDtfsCounter, 65 mSDsluCounter, 8587 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 12886 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 [2023-12-16 07:25:37,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 12886 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:25:37,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3679 states. [2023-12-16 07:25:37,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3679 to 3591. [2023-12-16 07:25:37,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3591 states, 3487 states have (on average 1.6587324347576713) internal successors, (5784), 3491 states have internal predecessors, (5784), 57 states have call successors, (57), 45 states have call predecessors, (57), 45 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-16 07:25:37,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3591 states to 3591 states and 5897 transitions. [2023-12-16 07:25:37,985 INFO L78 Accepts]: Start accepts. Automaton has 3591 states and 5897 transitions. Word has length 122 [2023-12-16 07:25:37,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:37,985 INFO L495 AbstractCegarLoop]: Abstraction has 3591 states and 5897 transitions. [2023-12-16 07:25:37,985 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:37,985 INFO L276 IsEmpty]: Start isEmpty. Operand 3591 states and 5897 transitions. [2023-12-16 07:25:37,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:37,986 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:37,986 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, 1] [2023-12-16 07:25:38,008 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 [2023-12-16 07:25:38,190 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 [2023-12-16 07:25:38,191 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:38,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:38,191 INFO L85 PathProgramCache]: Analyzing trace with hash -631014014, now seen corresponding path program 1 times [2023-12-16 07:25:38,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:38,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252482654] [2023-12-16 07:25:38,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:38,191 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 [2023-12-16 07:25:38,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:38,192 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) [2023-12-16 07:25:38,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-16 07:25:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:38,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:38,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:38,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:38,309 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:38,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:38,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [252482654] [2023-12-16 07:25:38,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [252482654] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:38,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:38,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:38,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682840575] [2023-12-16 07:25:38,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:38,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:25:38,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:38,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:25:38,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:25:38,310 INFO L87 Difference]: Start difference. First operand 3591 states and 5897 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:38,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:38,450 INFO L93 Difference]: Finished difference Result 5126 states and 7958 transitions. [2023-12-16 07:25:38,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:25:38,451 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:38,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:38,457 INFO L225 Difference]: With dead ends: 5126 [2023-12-16 07:25:38,457 INFO L226 Difference]: Without dead ends: 3671 [2023-12-16 07:25:38,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:25:38,461 INFO L413 NwaCegarLoop]: 4299 mSDtfsCounter, 56 mSDsluCounter, 8588 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 12887 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 [2023-12-16 07:25:38,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 12887 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:25:38,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3671 states. [2023-12-16 07:25:38,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3671 to 3595. [2023-12-16 07:25:38,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3595 states, 3491 states have (on average 1.6533944428530507) internal successors, (5772), 3495 states have internal predecessors, (5772), 57 states have call successors, (57), 45 states have call predecessors, (57), 45 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-16 07:25:38,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3595 states to 3595 states and 5885 transitions. [2023-12-16 07:25:38,557 INFO L78 Accepts]: Start accepts. Automaton has 3595 states and 5885 transitions. Word has length 122 [2023-12-16 07:25:38,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:38,557 INFO L495 AbstractCegarLoop]: Abstraction has 3595 states and 5885 transitions. [2023-12-16 07:25:38,557 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:38,557 INFO L276 IsEmpty]: Start isEmpty. Operand 3595 states and 5885 transitions. [2023-12-16 07:25:38,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:38,559 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:38,559 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, 1] [2023-12-16 07:25:38,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-16 07:25:38,767 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 [2023-12-16 07:25:38,767 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:38,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:38,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1277443776, now seen corresponding path program 1 times [2023-12-16 07:25:38,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:38,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [692951034] [2023-12-16 07:25:38,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:38,769 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 [2023-12-16 07:25:38,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:38,785 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) [2023-12-16 07:25:38,808 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 [2023-12-16 07:25:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:38,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:25:38,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:38,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:38,968 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:38,968 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:38,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [692951034] [2023-12-16 07:25:38,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [692951034] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:38,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:38,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:25:38,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78171662] [2023-12-16 07:25:38,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:38,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:25:38,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:38,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:25:38,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:25:38,970 INFO L87 Difference]: Start difference. First operand 3595 states and 5885 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:39,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:39,146 INFO L93 Difference]: Finished difference Result 6370 states and 9527 transitions. [2023-12-16 07:25:39,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:25:39,147 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:39,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:39,155 INFO L225 Difference]: With dead ends: 6370 [2023-12-16 07:25:39,155 INFO L226 Difference]: Without dead ends: 4911 [2023-12-16 07:25:39,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:25:39,159 INFO L413 NwaCegarLoop]: 4346 mSDtfsCounter, 4266 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4266 SdHoareTripleChecker+Valid, 4657 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 [2023-12-16 07:25:39,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4266 Valid, 4657 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:25:39,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4911 states. [2023-12-16 07:25:39,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4911 to 4905. [2023-12-16 07:25:39,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4905 states, 4713 states have (on average 1.5614258434118395) internal successors, (7359), 4718 states have internal predecessors, (7359), 104 states have call successors, (104), 85 states have call predecessors, (104), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-16 07:25:39,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4905 states to 4905 states and 7567 transitions. [2023-12-16 07:25:39,290 INFO L78 Accepts]: Start accepts. Automaton has 4905 states and 7567 transitions. Word has length 122 [2023-12-16 07:25:39,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:39,290 INFO L495 AbstractCegarLoop]: Abstraction has 4905 states and 7567 transitions. [2023-12-16 07:25:39,290 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:39,290 INFO L276 IsEmpty]: Start isEmpty. Operand 4905 states and 7567 transitions. [2023-12-16 07:25:39,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:39,292 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:39,292 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, 1] [2023-12-16 07:25:39,310 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 [2023-12-16 07:25:39,496 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 [2023-12-16 07:25:39,497 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:39,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:39,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1179710497, now seen corresponding path program 1 times [2023-12-16 07:25:39,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:39,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194520028] [2023-12-16 07:25:39,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:39,498 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 [2023-12-16 07:25:39,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:39,514 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) [2023-12-16 07:25:39,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-16 07:25:39,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:39,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:39,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:39,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:39,635 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:39,635 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:39,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [194520028] [2023-12-16 07:25:39,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [194520028] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:39,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:39,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:39,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288768425] [2023-12-16 07:25:39,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:39,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:25:39,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:39,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:25:39,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:25:39,636 INFO L87 Difference]: Start difference. First operand 4905 states and 7567 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:39,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:39,856 INFO L93 Difference]: Finished difference Result 8286 states and 12048 transitions. [2023-12-16 07:25:39,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:25:39,857 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:39,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:39,865 INFO L225 Difference]: With dead ends: 8286 [2023-12-16 07:25:39,865 INFO L226 Difference]: Without dead ends: 5517 [2023-12-16 07:25:39,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:25:39,870 INFO L413 NwaCegarLoop]: 4302 mSDtfsCounter, 47 mSDsluCounter, 8598 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 12900 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 [2023-12-16 07:25:39,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 12900 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:25:39,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5517 states. [2023-12-16 07:25:39,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5517 to 4941. [2023-12-16 07:25:39,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4941 states, 4749 states have (on average 1.5538008001684565) internal successors, (7379), 4754 states have internal predecessors, (7379), 104 states have call successors, (104), 85 states have call predecessors, (104), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-16 07:25:39,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4941 states to 4941 states and 7587 transitions. [2023-12-16 07:25:39,991 INFO L78 Accepts]: Start accepts. Automaton has 4941 states and 7587 transitions. Word has length 122 [2023-12-16 07:25:39,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:39,991 INFO L495 AbstractCegarLoop]: Abstraction has 4941 states and 7587 transitions. [2023-12-16 07:25:39,991 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:39,991 INFO L276 IsEmpty]: Start isEmpty. Operand 4941 states and 7587 transitions. [2023-12-16 07:25:39,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:39,992 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:39,992 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, 1] [2023-12-16 07:25:40,000 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 [2023-12-16 07:25:40,200 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 [2023-12-16 07:25:40,200 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:40,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:40,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1429076961, now seen corresponding path program 1 times [2023-12-16 07:25:40,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:40,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583764624] [2023-12-16 07:25:40,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:40,202 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 [2023-12-16 07:25:40,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:40,203 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) [2023-12-16 07:25:40,232 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 (24)] Waiting until timeout for monitored process [2023-12-16 07:25:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:40,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:40,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:40,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:40,314 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:40,314 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:40,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583764624] [2023-12-16 07:25:40,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [583764624] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:40,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:40,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:40,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581064448] [2023-12-16 07:25:40,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:40,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:25:40,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:40,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:25:40,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:25:40,316 INFO L87 Difference]: Start difference. First operand 4941 states and 7587 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:40,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:40,488 INFO L93 Difference]: Finished difference Result 7834 states and 11381 transitions. [2023-12-16 07:25:40,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:25:40,488 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:40,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:40,496 INFO L225 Difference]: With dead ends: 7834 [2023-12-16 07:25:40,496 INFO L226 Difference]: Without dead ends: 5029 [2023-12-16 07:25:40,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:25:40,501 INFO L413 NwaCegarLoop]: 4299 mSDtfsCounter, 29 mSDsluCounter, 8590 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 12889 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 [2023-12-16 07:25:40,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 12889 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:25:40,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5029 states. [2023-12-16 07:25:40,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5029 to 4949. [2023-12-16 07:25:40,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4949 states, 4757 states have (on average 1.5465629598486441) internal successors, (7357), 4762 states have internal predecessors, (7357), 104 states have call successors, (104), 85 states have call predecessors, (104), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-16 07:25:40,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4949 states to 4949 states and 7565 transitions. [2023-12-16 07:25:40,618 INFO L78 Accepts]: Start accepts. Automaton has 4949 states and 7565 transitions. Word has length 122 [2023-12-16 07:25:40,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:40,619 INFO L495 AbstractCegarLoop]: Abstraction has 4949 states and 7565 transitions. [2023-12-16 07:25:40,619 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:40,619 INFO L276 IsEmpty]: Start isEmpty. Operand 4949 states and 7565 transitions. [2023-12-16 07:25:40,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:40,620 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:40,620 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, 1] [2023-12-16 07:25:40,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-16 07:25:40,824 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 [2023-12-16 07:25:40,824 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:40,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:40,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1479104925, now seen corresponding path program 1 times [2023-12-16 07:25:40,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:40,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197384819] [2023-12-16 07:25:40,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:40,826 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 [2023-12-16 07:25:40,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:40,828 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) [2023-12-16 07:25:40,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-16 07:25:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:40,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:40,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:40,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:40,967 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:40,967 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:40,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197384819] [2023-12-16 07:25:40,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [197384819] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:40,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:40,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:40,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384491168] [2023-12-16 07:25:40,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:40,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:25:40,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:40,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:25:40,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:25:40,969 INFO L87 Difference]: Start difference. First operand 4949 states and 7565 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:41,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:41,139 INFO L93 Difference]: Finished difference Result 7826 states and 11305 transitions. [2023-12-16 07:25:41,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:25:41,140 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:41,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:41,147 INFO L225 Difference]: With dead ends: 7826 [2023-12-16 07:25:41,147 INFO L226 Difference]: Without dead ends: 5013 [2023-12-16 07:25:41,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:25:41,152 INFO L413 NwaCegarLoop]: 4299 mSDtfsCounter, 20 mSDsluCounter, 8591 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 12890 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 [2023-12-16 07:25:41,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 12890 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:25:41,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5013 states. [2023-12-16 07:25:41,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5013 to 4957. [2023-12-16 07:25:41,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4957 states, 4765 states have (on average 1.5393494228751312) internal successors, (7335), 4770 states have internal predecessors, (7335), 104 states have call successors, (104), 85 states have call predecessors, (104), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-16 07:25:41,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4957 states to 4957 states and 7543 transitions. [2023-12-16 07:25:41,367 INFO L78 Accepts]: Start accepts. Automaton has 4957 states and 7543 transitions. Word has length 122 [2023-12-16 07:25:41,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:41,367 INFO L495 AbstractCegarLoop]: Abstraction has 4957 states and 7543 transitions. [2023-12-16 07:25:41,367 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:41,367 INFO L276 IsEmpty]: Start isEmpty. Operand 4957 states and 7543 transitions. [2023-12-16 07:25:41,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:41,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:41,370 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, 1] [2023-12-16 07:25:41,374 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 [2023-12-16 07:25:41,570 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 [2023-12-16 07:25:41,570 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:41,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:41,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1960185183, now seen corresponding path program 1 times [2023-12-16 07:25:41,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:41,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487526450] [2023-12-16 07:25:41,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:41,572 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 [2023-12-16 07:25:41,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:41,574 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) [2023-12-16 07:25:41,575 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 [2023-12-16 07:25:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:41,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:41,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:41,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:41,680 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:41,680 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:41,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487526450] [2023-12-16 07:25:41,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487526450] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:41,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:41,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:41,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560413069] [2023-12-16 07:25:41,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:41,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:25:41,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:41,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:25:41,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:25:41,681 INFO L87 Difference]: Start difference. First operand 4957 states and 7543 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:41,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:41,845 INFO L93 Difference]: Finished difference Result 7818 states and 11229 transitions. [2023-12-16 07:25:41,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:25:41,846 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:41,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:41,854 INFO L225 Difference]: With dead ends: 7818 [2023-12-16 07:25:41,854 INFO L226 Difference]: Without dead ends: 4997 [2023-12-16 07:25:41,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:25:41,859 INFO L413 NwaCegarLoop]: 4299 mSDtfsCounter, 11 mSDsluCounter, 8592 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12891 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 [2023-12-16 07:25:41,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12891 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:25:41,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4997 states. [2023-12-16 07:25:41,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4997 to 4965. [2023-12-16 07:25:41,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4965 states, 4773 states have (on average 1.532160067043788) internal successors, (7313), 4778 states have internal predecessors, (7313), 104 states have call successors, (104), 85 states have call predecessors, (104), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-16 07:25:41,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4965 states to 4965 states and 7521 transitions. [2023-12-16 07:25:41,976 INFO L78 Accepts]: Start accepts. Automaton has 4965 states and 7521 transitions. Word has length 122 [2023-12-16 07:25:41,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:41,976 INFO L495 AbstractCegarLoop]: Abstraction has 4965 states and 7521 transitions. [2023-12-16 07:25:41,976 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:41,976 INFO L276 IsEmpty]: Start isEmpty. Operand 4965 states and 7521 transitions. [2023-12-16 07:25:41,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:41,977 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:41,977 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, 1] [2023-12-16 07:25:41,986 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 [2023-12-16 07:25:42,182 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 [2023-12-16 07:25:42,182 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:42,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:42,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1066698845, now seen corresponding path program 1 times [2023-12-16 07:25:42,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:42,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [11509799] [2023-12-16 07:25:42,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:42,183 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 [2023-12-16 07:25:42,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:42,184 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) [2023-12-16 07:25:42,185 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 [2023-12-16 07:25:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:42,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:25:42,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:42,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:42,296 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:42,296 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:42,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [11509799] [2023-12-16 07:25:42,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [11509799] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:42,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:42,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:42,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676849297] [2023-12-16 07:25:42,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:42,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:25:42,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:42,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:25:42,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:25:42,298 INFO L87 Difference]: Start difference. First operand 4965 states and 7521 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:42,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:42,459 INFO L93 Difference]: Finished difference Result 7810 states and 11153 transitions. [2023-12-16 07:25:42,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:25:42,459 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:42,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:42,466 INFO L225 Difference]: With dead ends: 7810 [2023-12-16 07:25:42,466 INFO L226 Difference]: Without dead ends: 4981 [2023-12-16 07:25:42,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:25:42,471 INFO L413 NwaCegarLoop]: 4299 mSDtfsCounter, 2 mSDsluCounter, 8593 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12892 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 [2023-12-16 07:25:42,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12892 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:25:42,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4981 states. [2023-12-16 07:25:42,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4981 to 4973. [2023-12-16 07:25:42,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4973 states, 4781 states have (on average 1.5249947709684166) internal successors, (7291), 4786 states have internal predecessors, (7291), 104 states have call successors, (104), 85 states have call predecessors, (104), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-16 07:25:42,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4973 states to 4973 states and 7499 transitions. [2023-12-16 07:25:42,587 INFO L78 Accepts]: Start accepts. Automaton has 4973 states and 7499 transitions. Word has length 122 [2023-12-16 07:25:42,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:42,588 INFO L495 AbstractCegarLoop]: Abstraction has 4973 states and 7499 transitions. [2023-12-16 07:25:42,588 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:42,588 INFO L276 IsEmpty]: Start isEmpty. Operand 4973 states and 7499 transitions. [2023-12-16 07:25:42,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:42,589 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:42,589 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, 1] [2023-12-16 07:25:42,608 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 (27)] Ended with exit code 0 [2023-12-16 07:25:42,793 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 [2023-12-16 07:25:42,794 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:42,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:42,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1856461153, now seen corresponding path program 1 times [2023-12-16 07:25:42,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:42,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2128837587] [2023-12-16 07:25:42,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:42,795 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 [2023-12-16 07:25:42,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:42,796 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) [2023-12-16 07:25:42,797 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 [2023-12-16 07:25:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:42,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:25:42,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:43,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:43,004 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:43,004 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:43,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2128837587] [2023-12-16 07:25:43,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2128837587] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:43,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:43,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:43,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294167847] [2023-12-16 07:25:43,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:43,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:25:43,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:43,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:25:43,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:25:43,005 INFO L87 Difference]: Start difference. First operand 4973 states and 7499 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, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:43,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:43,400 INFO L93 Difference]: Finished difference Result 7811 states and 11028 transitions. [2023-12-16 07:25:43,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:25:43,401 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, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:43,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:43,410 INFO L225 Difference]: With dead ends: 7811 [2023-12-16 07:25:43,410 INFO L226 Difference]: Without dead ends: 4973 [2023-12-16 07:25:43,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:25:43,415 INFO L413 NwaCegarLoop]: 4176 mSDtfsCounter, 4368 mSDsluCounter, 8266 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4383 SdHoareTripleChecker+Valid, 12442 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:25:43,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4383 Valid, 12442 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:25:43,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4973 states. [2023-12-16 07:25:43,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4973 to 4973. [2023-12-16 07:25:43,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4973 states, 4781 states have (on average 1.5220665132817401) internal successors, (7277), 4786 states have internal predecessors, (7277), 104 states have call successors, (104), 85 states have call predecessors, (104), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-16 07:25:43,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4973 states to 4973 states and 7485 transitions. [2023-12-16 07:25:43,613 INFO L78 Accepts]: Start accepts. Automaton has 4973 states and 7485 transitions. Word has length 122 [2023-12-16 07:25:43,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:43,613 INFO L495 AbstractCegarLoop]: Abstraction has 4973 states and 7485 transitions. [2023-12-16 07:25:43,613 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, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:43,613 INFO L276 IsEmpty]: Start isEmpty. Operand 4973 states and 7485 transitions. [2023-12-16 07:25:43,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:43,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:43,614 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, 1] [2023-12-16 07:25:43,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-16 07:25:43,818 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 [2023-12-16 07:25:43,819 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:43,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:43,819 INFO L85 PathProgramCache]: Analyzing trace with hash 2131220767, now seen corresponding path program 1 times [2023-12-16 07:25:43,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:43,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408842581] [2023-12-16 07:25:43,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:43,819 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 [2023-12-16 07:25:43,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:43,820 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) [2023-12-16 07:25:43,821 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 [2023-12-16 07:25:43,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:43,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:25:43,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:44,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:44,029 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:44,029 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:44,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408842581] [2023-12-16 07:25:44,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408842581] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:44,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:44,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:44,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952271812] [2023-12-16 07:25:44,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:44,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:25:44,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:44,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:25:44,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:25:44,030 INFO L87 Difference]: Start difference. First operand 4973 states and 7485 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, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:44,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:44,561 INFO L93 Difference]: Finished difference Result 8069 states and 11325 transitions. [2023-12-16 07:25:44,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:25:44,561 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, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2023-12-16 07:25:44,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:44,569 INFO L225 Difference]: With dead ends: 8069 [2023-12-16 07:25:44,569 INFO L226 Difference]: Without dead ends: 5231 [2023-12-16 07:25:44,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 07:25:44,576 INFO L413 NwaCegarLoop]: 4175 mSDtfsCounter, 4458 mSDsluCounter, 8262 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4473 SdHoareTripleChecker+Valid, 12437 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:25:44,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4473 Valid, 12437 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:25:44,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5231 states. [2023-12-16 07:25:44,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5231 to 5163. [2023-12-16 07:25:44,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 4967 states have (on average 1.5009059794644655) internal successors, (7455), 4972 states have internal predecessors, (7455), 104 states have call successors, (104), 89 states have call predecessors, (104), 90 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-16 07:25:44,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 7663 transitions. [2023-12-16 07:25:44,702 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 7663 transitions. Word has length 122 [2023-12-16 07:25:44,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:44,702 INFO L495 AbstractCegarLoop]: Abstraction has 5163 states and 7663 transitions. [2023-12-16 07:25:44,702 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, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:25:44,703 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 7663 transitions. [2023-12-16 07:25:44,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 07:25:44,703 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:44,703 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, 1] [2023-12-16 07:25:44,708 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 (29)] Ended with exit code 0 [2023-12-16 07:25:44,907 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 [2023-12-16 07:25:44,908 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:44,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:44,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1997207261, now seen corresponding path program 1 times [2023-12-16 07:25:44,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:44,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977620416] [2023-12-16 07:25:44,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:44,909 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 [2023-12-16 07:25:44,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:44,910 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) [2023-12-16 07:25:44,910 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 [2023-12-16 07:25:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:45,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:25:45,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:45,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:25:45,105 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:45,105 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:45,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1977620416] [2023-12-16 07:25:45,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1977620416] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:45,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:45,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:25:45,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831277287] [2023-12-16 07:25:45,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:45,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:25:45,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:45,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:25:45,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:25:45,106 INFO L87 Difference]: Start difference. First operand 5163 states and 7663 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 07:25:45,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:45,417 INFO L93 Difference]: Finished difference Result 11134 states and 14977 transitions. [2023-12-16 07:25:45,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:25:45,419 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 122 [2023-12-16 07:25:45,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:45,427 INFO L225 Difference]: With dead ends: 11134 [2023-12-16 07:25:45,427 INFO L226 Difference]: Without dead ends: 8107 [2023-12-16 07:25:45,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:25:45,430 INFO L413 NwaCegarLoop]: 4292 mSDtfsCounter, 4185 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4185 SdHoareTripleChecker+Valid, 4595 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 [2023-12-16 07:25:45,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4185 Valid, 4595 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:25:45,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8107 states. [2023-12-16 07:25:45,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8107 to 8103. [2023-12-16 07:25:45,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8103 states, 7719 states have (on average 1.3953880036274129) internal successors, (10771), 7730 states have internal predecessors, (10771), 202 states have call successors, (202), 177 states have call predecessors, (202), 180 states have return successors, (204), 196 states have call predecessors, (204), 200 states have call successors, (204) [2023-12-16 07:25:45,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8103 states to 8103 states and 11177 transitions. [2023-12-16 07:25:45,650 INFO L78 Accepts]: Start accepts. Automaton has 8103 states and 11177 transitions. Word has length 122 [2023-12-16 07:25:45,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:45,650 INFO L495 AbstractCegarLoop]: Abstraction has 8103 states and 11177 transitions. [2023-12-16 07:25:45,651 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 07:25:45,651 INFO L276 IsEmpty]: Start isEmpty. Operand 8103 states and 11177 transitions. [2023-12-16 07:25:45,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-12-16 07:25:45,654 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:45,655 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] [2023-12-16 07:25:45,660 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 [2023-12-16 07:25:45,856 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 [2023-12-16 07:25:45,856 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:45,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:45,857 INFO L85 PathProgramCache]: Analyzing trace with hash -28709304, now seen corresponding path program 1 times [2023-12-16 07:25:45,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:45,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006336226] [2023-12-16 07:25:45,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:45,857 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 [2023-12-16 07:25:45,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:45,858 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) [2023-12-16 07:25:45,865 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 [2023-12-16 07:25:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:45,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:25:45,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:46,165 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-16 07:25:46,165 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:46,165 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:46,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006336226] [2023-12-16 07:25:46,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1006336226] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:46,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:46,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:46,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057390168] [2023-12-16 07:25:46,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:46,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:25:46,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:46,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:25:46,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:25:46,166 INFO L87 Difference]: Start difference. First operand 8103 states and 11177 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, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:25:46,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:46,948 INFO L93 Difference]: Finished difference Result 19807 states and 25271 transitions. [2023-12-16 07:25:46,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:25:46,948 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, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 196 [2023-12-16 07:25:46,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:46,971 INFO L225 Difference]: With dead ends: 19807 [2023-12-16 07:25:46,971 INFO L226 Difference]: Without dead ends: 13841 [2023-12-16 07:25:46,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:25:46,978 INFO L413 NwaCegarLoop]: 4256 mSDtfsCounter, 4439 mSDsluCounter, 4408 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4444 SdHoareTripleChecker+Valid, 8664 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:25:46,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4444 Valid, 8664 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:25:46,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13841 states. [2023-12-16 07:25:47,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13841 to 13837. [2023-12-16 07:25:47,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13837 states, 13093 states have (on average 1.3157412357748415) internal successors, (17227), 13120 states have internal predecessors, (17227), 382 states have call successors, (382), 337 states have call predecessors, (382), 360 states have return successors, (428), 380 states have call predecessors, (428), 380 states have call successors, (428) [2023-12-16 07:25:47,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13837 states to 13837 states and 18037 transitions. [2023-12-16 07:25:47,381 INFO L78 Accepts]: Start accepts. Automaton has 13837 states and 18037 transitions. Word has length 196 [2023-12-16 07:25:47,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:47,381 INFO L495 AbstractCegarLoop]: Abstraction has 13837 states and 18037 transitions. [2023-12-16 07:25:47,381 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, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:25:47,381 INFO L276 IsEmpty]: Start isEmpty. Operand 13837 states and 18037 transitions. [2023-12-16 07:25:47,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-12-16 07:25:47,388 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:47,389 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] [2023-12-16 07:25:47,396 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 [2023-12-16 07:25:47,594 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 [2023-12-16 07:25:47,594 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:47,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:47,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1465557021, now seen corresponding path program 1 times [2023-12-16 07:25:47,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:47,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2145568307] [2023-12-16 07:25:47,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:47,596 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 [2023-12-16 07:25:47,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:47,596 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) [2023-12-16 07:25:47,597 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 [2023-12-16 07:25:47,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:47,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:25:47,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:47,893 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-16 07:25:47,893 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:47,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:47,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2145568307] [2023-12-16 07:25:47,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2145568307] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:47,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:47,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:47,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439218151] [2023-12-16 07:25:47,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:47,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:25:47,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:47,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:25:47,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:25:47,895 INFO L87 Difference]: Start difference. First operand 13837 states and 18037 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, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:25:48,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:48,987 INFO L93 Difference]: Finished difference Result 36459 states and 45214 transitions. [2023-12-16 07:25:48,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:25:48,988 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, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 198 [2023-12-16 07:25:48,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:49,032 INFO L225 Difference]: With dead ends: 36459 [2023-12-16 07:25:49,032 INFO L226 Difference]: Without dead ends: 24759 [2023-12-16 07:25:49,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:25:49,048 INFO L413 NwaCegarLoop]: 4357 mSDtfsCounter, 4418 mSDsluCounter, 4493 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4423 SdHoareTripleChecker+Valid, 8850 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:25:49,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4423 Valid, 8850 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:25:49,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24759 states. [2023-12-16 07:25:49,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24759 to 24755. [2023-12-16 07:25:49,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24755 states, 23320 states have (on average 1.2658662092624358) internal successors, (29520), 23380 states have internal predecessors, (29520), 729 states have call successors, (729), 641 states have call predecessors, (729), 704 states have return successors, (863), 735 states have call predecessors, (863), 727 states have call successors, (863) [2023-12-16 07:25:49,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24755 states to 24755 states and 31112 transitions. [2023-12-16 07:25:49,941 INFO L78 Accepts]: Start accepts. Automaton has 24755 states and 31112 transitions. Word has length 198 [2023-12-16 07:25:49,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:49,941 INFO L495 AbstractCegarLoop]: Abstraction has 24755 states and 31112 transitions. [2023-12-16 07:25:49,942 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, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:25:49,942 INFO L276 IsEmpty]: Start isEmpty. Operand 24755 states and 31112 transitions. [2023-12-16 07:25:49,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-12-16 07:25:49,952 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:49,952 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] [2023-12-16 07:25:49,959 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 [2023-12-16 07:25:50,157 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 [2023-12-16 07:25:50,158 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:50,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:50,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1938792671, now seen corresponding path program 1 times [2023-12-16 07:25:50,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:50,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632723988] [2023-12-16 07:25:50,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:50,159 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 [2023-12-16 07:25:50,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:50,160 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) [2023-12-16 07:25:50,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-16 07:25:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:50,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:25:50,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:50,289 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-16 07:25:50,289 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:50,290 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:50,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1632723988] [2023-12-16 07:25:50,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1632723988] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:50,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:50,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:25:50,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856559382] [2023-12-16 07:25:50,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:50,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:25:50,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:50,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:25:50,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:25:50,291 INFO L87 Difference]: Start difference. First operand 24755 states and 31112 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:25:51,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:51,076 INFO L93 Difference]: Finished difference Result 47363 states and 58219 transitions. [2023-12-16 07:25:51,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:25:51,076 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 198 [2023-12-16 07:25:51,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:51,125 INFO L225 Difference]: With dead ends: 47363 [2023-12-16 07:25:51,126 INFO L226 Difference]: Without dead ends: 24745 [2023-12-16 07:25:51,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:25:51,154 INFO L413 NwaCegarLoop]: 4292 mSDtfsCounter, 360 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 8249 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 [2023-12-16 07:25:51,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 8249 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:25:51,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24745 states. [2023-12-16 07:25:52,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24745 to 24745. [2023-12-16 07:25:52,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24745 states, 23313 states have (on average 1.2656457770342728) internal successors, (29506), 23372 states have internal predecessors, (29506), 726 states have call successors, (726), 641 states have call predecessors, (726), 704 states have return successors, (860), 732 states have call predecessors, (860), 724 states have call successors, (860) [2023-12-16 07:25:52,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24745 states to 24745 states and 31092 transitions. [2023-12-16 07:25:52,333 INFO L78 Accepts]: Start accepts. Automaton has 24745 states and 31092 transitions. Word has length 198 [2023-12-16 07:25:52,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:52,333 INFO L495 AbstractCegarLoop]: Abstraction has 24745 states and 31092 transitions. [2023-12-16 07:25:52,334 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:25:52,334 INFO L276 IsEmpty]: Start isEmpty. Operand 24745 states and 31092 transitions. [2023-12-16 07:25:52,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-12-16 07:25:52,344 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:52,344 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] [2023-12-16 07:25:52,349 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 [2023-12-16 07:25:52,549 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 [2023-12-16 07:25:52,549 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:52,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:52,549 INFO L85 PathProgramCache]: Analyzing trace with hash 37297928, now seen corresponding path program 1 times [2023-12-16 07:25:52,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:52,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [721913246] [2023-12-16 07:25:52,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:52,550 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 [2023-12-16 07:25:52,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:52,551 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) [2023-12-16 07:25:52,552 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 [2023-12-16 07:25:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:52,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:25:52,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:52,830 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-16 07:25:52,830 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:52,830 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:52,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [721913246] [2023-12-16 07:25:52,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [721913246] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:52,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:52,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:25:52,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821999375] [2023-12-16 07:25:52,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:52,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:25:52,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:52,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:25:52,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:25:52,832 INFO L87 Difference]: Start difference. First operand 24745 states and 31092 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, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:25:54,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:54,708 INFO L93 Difference]: Finished difference Result 69106 states and 84283 transitions. [2023-12-16 07:25:54,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:25:54,709 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, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 200 [2023-12-16 07:25:54,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:54,793 INFO L225 Difference]: With dead ends: 69106 [2023-12-16 07:25:54,793 INFO L226 Difference]: Without dead ends: 46498 [2023-12-16 07:25:54,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:25:54,822 INFO L413 NwaCegarLoop]: 4345 mSDtfsCounter, 4412 mSDsluCounter, 4475 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4418 SdHoareTripleChecker+Valid, 8820 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:25:54,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4418 Valid, 8820 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:25:54,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46498 states. [2023-12-16 07:25:56,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46498 to 46494. [2023-12-16 07:25:56,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46494 states, 43683 states have (on average 1.2353776068493465) internal successors, (53965), 43807 states have internal predecessors, (53965), 1417 states have call successors, (1417), 1249 states have call predecessors, (1417), 1392 states have return successors, (1727), 1439 states have call predecessors, (1727), 1415 states have call successors, (1727) [2023-12-16 07:25:56,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46494 states to 46494 states and 57109 transitions. [2023-12-16 07:25:56,648 INFO L78 Accepts]: Start accepts. Automaton has 46494 states and 57109 transitions. Word has length 200 [2023-12-16 07:25:56,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:25:56,648 INFO L495 AbstractCegarLoop]: Abstraction has 46494 states and 57109 transitions. [2023-12-16 07:25:56,648 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, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:25:56,648 INFO L276 IsEmpty]: Start isEmpty. Operand 46494 states and 57109 transitions. [2023-12-16 07:25:56,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-12-16 07:25:56,665 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:25:56,665 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] [2023-12-16 07:25:56,669 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 (34)] Ended with exit code 0 [2023-12-16 07:25:56,869 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 [2023-12-16 07:25:56,870 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:25:56,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:25:56,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1748105334, now seen corresponding path program 1 times [2023-12-16 07:25:56,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:25:56,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1724935890] [2023-12-16 07:25:56,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:25:56,871 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 [2023-12-16 07:25:56,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:25:56,872 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) [2023-12-16 07:25:56,872 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 [2023-12-16 07:25:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:25:56,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:25:56,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:25:57,008 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-16 07:25:57,009 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:25:57,009 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:25:57,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1724935890] [2023-12-16 07:25:57,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1724935890] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:25:57,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:25:57,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:25:57,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499727424] [2023-12-16 07:25:57,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:25:57,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:25:57,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:25:57,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:25:57,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:25:57,013 INFO L87 Difference]: Start difference. First operand 46494 states and 57109 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:25:58,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:25:58,716 INFO L93 Difference]: Finished difference Result 80174 states and 97480 transitions. [2023-12-16 07:25:58,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:25:58,716 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 200 [2023-12-16 07:25:58,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:25:58,780 INFO L225 Difference]: With dead ends: 80174 [2023-12-16 07:25:58,781 INFO L226 Difference]: Without dead ends: 35817 [2023-12-16 07:25:58,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:25:58,819 INFO L413 NwaCegarLoop]: 4291 mSDtfsCounter, 358 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 8248 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 [2023-12-16 07:25:58,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 8248 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:25:58,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35817 states. [2023-12-16 07:26:00,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35817 to 35817. [2023-12-16 07:26:00,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35817 states, 33689 states have (on average 1.2462524859746504) internal successors, (41985), 33784 states have internal predecessors, (41985), 1070 states have call successors, (1070), 945 states have call predecessors, (1070), 1056 states have return successors, (1300), 1088 states have call predecessors, (1300), 1068 states have call successors, (1300) [2023-12-16 07:26:00,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35817 states to 35817 states and 44355 transitions. [2023-12-16 07:26:00,708 INFO L78 Accepts]: Start accepts. Automaton has 35817 states and 44355 transitions. Word has length 200 [2023-12-16 07:26:00,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:26:00,709 INFO L495 AbstractCegarLoop]: Abstraction has 35817 states and 44355 transitions. [2023-12-16 07:26:00,709 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:26:00,709 INFO L276 IsEmpty]: Start isEmpty. Operand 35817 states and 44355 transitions. [2023-12-16 07:26:00,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2023-12-16 07:26:00,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:26:00,720 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] [2023-12-16 07:26:00,724 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 (35)] Ended with exit code 0 [2023-12-16 07:26:00,921 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 [2023-12-16 07:26:00,921 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:26:00,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:26:00,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1843146595, now seen corresponding path program 1 times [2023-12-16 07:26:00,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:26:00,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074896891] [2023-12-16 07:26:00,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:26:00,922 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:26:00,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:26:00,923 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) [2023-12-16 07:26:00,924 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 [2023-12-16 07:26:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:26:01,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:26:01,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:26:01,223 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-16 07:26:01,224 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:26:01,224 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:26:01,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074896891] [2023-12-16 07:26:01,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074896891] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:26:01,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:26:01,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:26:01,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041058595] [2023-12-16 07:26:01,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:26:01,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:26:01,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:26:01,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:26:01,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:26:01,225 INFO L87 Difference]: Start difference. First operand 35817 states and 44355 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, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:26:03,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:26:03,849 INFO L93 Difference]: Finished difference Result 112761 states and 136201 transitions. [2023-12-16 07:26:03,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:26:03,850 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, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 202 [2023-12-16 07:26:03,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:26:04,100 INFO L225 Difference]: With dead ends: 112761 [2023-12-16 07:26:04,101 INFO L226 Difference]: Without dead ends: 79081 [2023-12-16 07:26:04,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:26:04,129 INFO L413 NwaCegarLoop]: 4354 mSDtfsCounter, 4413 mSDsluCounter, 4468 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4419 SdHoareTripleChecker+Valid, 8822 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:26:04,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4419 Valid, 8822 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:26:04,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79081 states. [2023-12-16 07:26:07,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79081 to 77541. [2023-12-16 07:26:07,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77541 states, 72738 states have (on average 1.21826280623608) internal successors, (88614), 73322 states have internal predecessors, (88614), 2041 states have call successors, (2041), 1793 states have call predecessors, (2041), 2760 states have return successors, (3284), 2427 states have call predecessors, (3284), 2039 states have call successors, (3284) [2023-12-16 07:26:07,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77541 states to 77541 states and 93939 transitions. [2023-12-16 07:26:07,204 INFO L78 Accepts]: Start accepts. Automaton has 77541 states and 93939 transitions. Word has length 202 [2023-12-16 07:26:07,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:26:07,204 INFO L495 AbstractCegarLoop]: Abstraction has 77541 states and 93939 transitions. [2023-12-16 07:26:07,204 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, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:26:07,204 INFO L276 IsEmpty]: Start isEmpty. Operand 77541 states and 93939 transitions. [2023-12-16 07:26:07,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2023-12-16 07:26:07,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:26:07,231 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] [2023-12-16 07:26:07,239 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 (36)] Forceful destruction successful, exit code 0 [2023-12-16 07:26:07,432 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 [2023-12-16 07:26:07,432 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:26:07,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:26:07,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1964746975, now seen corresponding path program 1 times [2023-12-16 07:26:07,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:26:07,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [498496351] [2023-12-16 07:26:07,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:26:07,433 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 [2023-12-16 07:26:07,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:26:07,434 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) [2023-12-16 07:26:07,435 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 [2023-12-16 07:26:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:26:07,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:26:07,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:26:07,572 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-16 07:26:07,572 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:26:07,572 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:26:07,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [498496351] [2023-12-16 07:26:07,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [498496351] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:26:07,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:26:07,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:26:07,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774768212] [2023-12-16 07:26:07,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:26:07,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:26:07,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:26:07,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:26:07,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:26:07,574 INFO L87 Difference]: Start difference. First operand 77541 states and 93939 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:26:10,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:26:10,376 INFO L93 Difference]: Finished difference Result 152938 states and 183880 transitions. [2023-12-16 07:26:10,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:26:10,376 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 202 [2023-12-16 07:26:10,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:26:10,513 INFO L225 Difference]: With dead ends: 152938 [2023-12-16 07:26:10,513 INFO L226 Difference]: Without dead ends: 77533 [2023-12-16 07:26:10,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:26:10,636 INFO L413 NwaCegarLoop]: 4290 mSDtfsCounter, 356 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 8247 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 [2023-12-16 07:26:10,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 8247 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:26:10,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77533 states. Received shutdown request... [2023-12-16 07:26:10,741 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 07:26:10,745 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 [2023-12-16 07:26:10,748 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:26:10,748 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:26:10,942 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 [2023-12-16 07:26:10,942 WARN L619 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2023-12-16 07:26:10,943 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 07:26:10,946 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:26:10,947 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 07:26:10,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:26:10 BoogieIcfgContainer [2023-12-16 07:26:10,950 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 07:26:10,951 INFO L158 Benchmark]: Toolchain (without parser) took 59541.20ms. Allocated memory was 181.4MB in the beginning and 5.6GB in the end (delta: 5.5GB). Free memory was 100.7MB in the beginning and 4.6GB in the end (delta: -4.5GB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. [2023-12-16 07:26:10,951 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 181.4MB. Free memory is still 136.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 07:26:10,951 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2300.31ms. Allocated memory was 181.4MB in the beginning and 273.7MB in the end (delta: 92.3MB). Free memory was 100.7MB in the beginning and 162.3MB in the end (delta: -61.6MB). Peak memory consumption was 130.5MB. Max. memory is 8.0GB. [2023-12-16 07:26:10,951 INFO L158 Benchmark]: Boogie Procedure Inliner took 267.03ms. Allocated memory is still 273.7MB. Free memory was 161.8MB in the beginning and 82.1MB in the end (delta: 79.7MB). Peak memory consumption was 78.6MB. Max. memory is 8.0GB. [2023-12-16 07:26:10,951 INFO L158 Benchmark]: Boogie Preprocessor took 577.60ms. Allocated memory was 273.7MB in the beginning and 514.9MB in the end (delta: 241.2MB). Free memory was 82.1MB in the beginning and 336.9MB in the end (delta: -254.8MB). Peak memory consumption was 81.3MB. Max. memory is 8.0GB. [2023-12-16 07:26:10,952 INFO L158 Benchmark]: RCFGBuilder took 7575.61ms. Allocated memory was 514.9MB in the beginning and 1.1GB in the end (delta: 622.9MB). Free memory was 336.9MB in the beginning and 910.5MB in the end (delta: -573.6MB). Peak memory consumption was 683.1MB. Max. memory is 8.0GB. [2023-12-16 07:26:10,952 INFO L158 Benchmark]: TraceAbstraction took 48814.49ms. Allocated memory was 1.1GB in the beginning and 5.6GB in the end (delta: 4.5GB). Free memory was 909.9MB in the beginning and 4.6GB in the end (delta: -3.7GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2023-12-16 07:26:10,952 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 181.4MB. Free memory is still 136.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2300.31ms. Allocated memory was 181.4MB in the beginning and 273.7MB in the end (delta: 92.3MB). Free memory was 100.7MB in the beginning and 162.3MB in the end (delta: -61.6MB). Peak memory consumption was 130.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 267.03ms. Allocated memory is still 273.7MB. Free memory was 161.8MB in the beginning and 82.1MB in the end (delta: 79.7MB). Peak memory consumption was 78.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 577.60ms. Allocated memory was 273.7MB in the beginning and 514.9MB in the end (delta: 241.2MB). Free memory was 82.1MB in the beginning and 336.9MB in the end (delta: -254.8MB). Peak memory consumption was 81.3MB. Max. memory is 8.0GB. * RCFGBuilder took 7575.61ms. Allocated memory was 514.9MB in the beginning and 1.1GB in the end (delta: 622.9MB). Free memory was 336.9MB in the beginning and 910.5MB in the end (delta: -573.6MB). Peak memory consumption was 683.1MB. Max. memory is 8.0GB. * TraceAbstraction took 48814.49ms. Allocated memory was 1.1GB in the beginning and 5.6GB in the end (delta: 4.5GB). Free memory was 909.9MB in the beginning and 4.6GB in the end (delta: -3.7GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 11173]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11173). Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 11049]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11049). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 2387 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 48.8s, OverallIterations: 36, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 22.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 109436 SdHoareTripleChecker+Valid, 7.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 109128 mSDsluCounter, 405885 SdHoareTripleChecker+Invalid, 6.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 252696 mSDsCounter, 833 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10088 IncrementalHoareTripleChecker+Invalid, 10921 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 833 mSolverCounterUnsat, 153189 mSDtfsCounter, 10088 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4925 GetRequests, 4818 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77541occurred in iteration=35, InterpolantAutomatonStates: 154, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 12.2s AutomataMinimizationTime, 36 MinimizatonAttempts, 2669 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 4934 NumberOfCodeBlocks, 4934 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 4898 ConstructedInterpolants, 0 QuantifiedInterpolants, 8256 SizeOfPredicates, 8 NumberOfNonLiveVariables, 13056 ConjunctsInSsa, 152 ConjunctsInUnsatCore, 36 InterpolantComputations, 36 PerfectInterpolantSequences, 406/406 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown