/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_label48+token_ring.09.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 07:35:46,073 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 07:35:46,177 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 07:35:46,182 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 07:35:46,183 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 07:35:46,220 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 07:35:46,220 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 07:35:46,221 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 07:35:46,221 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 07:35:46,224 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 07:35:46,224 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 07:35:46,224 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 07:35:46,225 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 07:35:46,226 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 07:35:46,226 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 07:35:46,226 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 07:35:46,226 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 07:35:46,227 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 07:35:46,227 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 07:35:46,228 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 07:35:46,228 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 07:35:46,228 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 07:35:46,228 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 07:35:46,228 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 07:35:46,228 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 07:35:46,229 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 07:35:46,229 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 07:35:46,229 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 07:35:46,229 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 07:35:46,229 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 07:35:46,230 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 07:35:46,230 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 07:35:46,230 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 07:35:46,230 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 07:35:46,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:35:46,230 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 07:35:46,230 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 07:35:46,231 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 07:35:46,231 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 07:35:46,231 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 07:35:46,231 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 07:35:46,231 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 07:35:46,231 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 07:35:46,231 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 07:35:46,231 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 07:35:46,232 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 07:35:46,232 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 07:35:46,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 07:35:46,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 07:35:46,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 07:35:46,526 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 07:35:46,526 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 07:35:46,527 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label48+token_ring.09.cil-1.c [2023-12-16 07:35:47,520 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 07:35:47,956 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 07:35:47,957 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label48+token_ring.09.cil-1.c [2023-12-16 07:35:47,997 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca479ac7e/1974f7e5fb8743b7bcd025dd7a0a462c/FLAGb44c8fa7e [2023-12-16 07:35:48,006 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca479ac7e/1974f7e5fb8743b7bcd025dd7a0a462c [2023-12-16 07:35:48,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 07:35:48,009 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 07:35:48,009 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 07:35:48,010 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 07:35:48,013 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 07:35:48,013 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:35:48" (1/1) ... [2023-12-16 07:35:48,014 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51634bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:48, skipping insertion in model container [2023-12-16 07:35:48,014 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:35:48" (1/1) ... [2023-12-16 07:35:48,171 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 07:35:49,332 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_label48+token_ring.09.cil-1.c[375709,375722] [2023-12-16 07:35:49,361 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_label48+token_ring.09.cil-1.c[383339,383352] [2023-12-16 07:35:49,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:35:49,589 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 07:35:50,704 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_label48+token_ring.09.cil-1.c[375709,375722] [2023-12-16 07:35:50,715 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_label48+token_ring.09.cil-1.c[383339,383352] [2023-12-16 07:35:50,741 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:35:50,782 INFO L206 MainTranslator]: Completed translation [2023-12-16 07:35:50,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:50 WrapperNode [2023-12-16 07:35:50,783 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 07:35:50,784 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 07:35:50,784 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 07:35:50,784 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 07:35:50,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:50" (1/1) ... [2023-12-16 07:35:50,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:50" (1/1) ... [2023-12-16 07:35:51,407 INFO L138 Inliner]: procedures = 63, calls = 68, calls flagged for inlining = 40, calls inlined = 40, statements flattened = 13017 [2023-12-16 07:35:51,408 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 07:35:51,409 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 07:35:51,409 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 07:35:51,409 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 07:35:51,449 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:50" (1/1) ... [2023-12-16 07:35:51,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:50" (1/1) ... [2023-12-16 07:35:51,673 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:50" (1/1) ... [2023-12-16 07:35:51,819 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 07:35:51,819 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:50" (1/1) ... [2023-12-16 07:35:51,819 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:50" (1/1) ... [2023-12-16 07:35:52,297 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:50" (1/1) ... [2023-12-16 07:35:52,475 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:50" (1/1) ... [2023-12-16 07:35:52,507 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:50" (1/1) ... [2023-12-16 07:35:52,527 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:50" (1/1) ... [2023-12-16 07:35:52,594 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 07:35:52,609 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 07:35:52,609 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 07:35:52,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 07:35:52,609 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:50" (1/1) ... [2023-12-16 07:35:52,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:35:52,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 07:35:52,633 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 07:35:52,654 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 07:35:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 07:35:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 07:35:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 07:35:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 07:35:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 07:35:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 07:35:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 07:35:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 07:35:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 07:35:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 07:35:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 07:35:52,659 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 07:35:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 07:35:52,659 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 07:35:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 07:35:52,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 07:35:52,802 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 07:35:52,803 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 07:36:01,874 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 07:36:02,058 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 07:36:02,059 INFO L309 CfgBuilder]: Removed 13 assume(true) statements. [2023-12-16 07:36:02,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:36:02 BoogieIcfgContainer [2023-12-16 07:36:02,059 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 07:36:02,063 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 07:36:02,063 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 07:36:02,065 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 07:36:02,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:35:48" (1/3) ... [2023-12-16 07:36:02,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47020f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:36:02, skipping insertion in model container [2023-12-16 07:36:02,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:50" (2/3) ... [2023-12-16 07:36:02,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47020f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:36:02, skipping insertion in model container [2023-12-16 07:36:02,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:36:02" (3/3) ... [2023-12-16 07:36:02,078 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label48+token_ring.09.cil-1.c [2023-12-16 07:36:02,090 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 07:36:02,090 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 07:36:02,345 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 07:36:02,349 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;@1ef7799c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 07:36:02,350 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 07:36:02,370 INFO L276 IsEmpty]: Start isEmpty. Operand has 2402 states, 2370 states have (on average 1.8784810126582279) internal successors, (4452), 2373 states have internal predecessors, (4452), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-16 07:36:02,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 07:36:02,395 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:02,396 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:36:02,397 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:02,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:02,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1143905641, now seen corresponding path program 1 times [2023-12-16 07:36:02,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:02,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396579344] [2023-12-16 07:36:02,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:02,423 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 07:36:02,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:02,426 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 07:36:02,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 07:36:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:02,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:36:02,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:02,773 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 07:36:02,773 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:02,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:02,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396579344] [2023-12-16 07:36:02,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1396579344] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:02,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:02,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:36:02,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866725458] [2023-12-16 07:36:02,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:02,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:36:02,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:02,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:36:02,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:36:02,814 INFO L87 Difference]: Start difference. First operand has 2402 states, 2370 states have (on average 1.8784810126582279) internal successors, (4452), 2373 states have internal predecessors, (4452), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:03,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:03,004 INFO L93 Difference]: Finished difference Result 4798 states and 8983 transitions. [2023-12-16 07:36:03,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:36:03,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 07:36:03,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:03,029 INFO L225 Difference]: With dead ends: 4798 [2023-12-16 07:36:03,030 INFO L226 Difference]: Without dead ends: 2398 [2023-12-16 07:36:03,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 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 07:36:03,045 INFO L413 NwaCegarLoop]: 4371 mSDtfsCounter, 441 mSDsluCounter, 3959 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 8330 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:03,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 8330 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:36:03,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2023-12-16 07:36:03,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 2398. [2023-12-16 07:36:03,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2398 states, 2367 states have (on average 1.8411491339247994) internal successors, (4358), 2369 states have internal predecessors, (4358), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-16 07:36:03,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2398 states to 2398 states and 4404 transitions. [2023-12-16 07:36:03,141 INFO L78 Accepts]: Start accepts. Automaton has 2398 states and 4404 transitions. Word has length 131 [2023-12-16 07:36:03,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:03,142 INFO L495 AbstractCegarLoop]: Abstraction has 2398 states and 4404 transitions. [2023-12-16 07:36:03,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:03,143 INFO L276 IsEmpty]: Start isEmpty. Operand 2398 states and 4404 transitions. [2023-12-16 07:36:03,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 07:36:03,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:03,145 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:36:03,150 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 07:36:03,354 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 07:36:03,355 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:03,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:03,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1100652757, now seen corresponding path program 1 times [2023-12-16 07:36:03,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:03,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [847425342] [2023-12-16 07:36:03,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:03,357 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 07:36:03,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:03,362 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 07:36:03,400 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 07:36:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:03,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:03,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:03,780 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 07:36:03,780 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:03,780 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:03,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [847425342] [2023-12-16 07:36:03,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [847425342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:03,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:03,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:03,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013456698] [2023-12-16 07:36:03,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:03,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:36:03,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:03,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:36:03,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:36:03,785 INFO L87 Difference]: Start difference. First operand 2398 states and 4404 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:04,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:04,511 INFO L93 Difference]: Finished difference Result 2959 states and 5319 transitions. [2023-12-16 07:36:04,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:36:04,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 07:36:04,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:04,525 INFO L225 Difference]: With dead ends: 2959 [2023-12-16 07:36:04,528 INFO L226 Difference]: Without dead ends: 2697 [2023-12-16 07:36:04,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 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 07:36:04,530 INFO L413 NwaCegarLoop]: 4283 mSDtfsCounter, 4807 mSDsluCounter, 8731 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4824 SdHoareTripleChecker+Valid, 13014 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:04,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4824 Valid, 13014 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 07:36:04,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2023-12-16 07:36:04,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 2674. [2023-12-16 07:36:04,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2618 states have (on average 1.8216195569136746) internal successors, (4769), 2621 states have internal predecessors, (4769), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-16 07:36:04,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 4852 transitions. [2023-12-16 07:36:04,586 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 4852 transitions. Word has length 131 [2023-12-16 07:36:04,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:04,586 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 4852 transitions. [2023-12-16 07:36:04,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:04,586 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 4852 transitions. [2023-12-16 07:36:04,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 07:36:04,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:04,588 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:36:04,595 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 07:36:04,792 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 07:36:04,793 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:04,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:04,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1286023727, now seen corresponding path program 1 times [2023-12-16 07:36:04,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:04,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575917279] [2023-12-16 07:36:04,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:04,794 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 07:36:04,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:04,801 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 07:36:04,832 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 07:36:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:04,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:04,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:05,020 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 07:36:05,021 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:05,021 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:05,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575917279] [2023-12-16 07:36:05,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575917279] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:05,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:05,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:05,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634499992] [2023-12-16 07:36:05,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:05,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:36:05,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:05,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:36:05,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:36:05,025 INFO L87 Difference]: Start difference. First operand 2674 states and 4852 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:05,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:05,439 INFO L93 Difference]: Finished difference Result 3212 states and 5727 transitions. [2023-12-16 07:36:05,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:36:05,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 07:36:05,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:05,449 INFO L225 Difference]: With dead ends: 3212 [2023-12-16 07:36:05,449 INFO L226 Difference]: Without dead ends: 2674 [2023-12-16 07:36:05,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 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 07:36:05,451 INFO L413 NwaCegarLoop]: 4235 mSDtfsCounter, 4555 mSDsluCounter, 8348 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4572 SdHoareTripleChecker+Valid, 12583 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:05,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4572 Valid, 12583 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:36:05,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2023-12-16 07:36:05,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2023-12-16 07:36:05,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2618 states have (on average 1.8189457601222307) internal successors, (4762), 2621 states have internal predecessors, (4762), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-16 07:36:05,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 4845 transitions. [2023-12-16 07:36:05,508 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 4845 transitions. Word has length 131 [2023-12-16 07:36:05,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:05,509 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 4845 transitions. [2023-12-16 07:36:05,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:05,509 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 4845 transitions. [2023-12-16 07:36:05,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 07:36:05,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:05,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:05,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 07:36:05,713 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 07:36:05,714 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:05,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:05,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1363013291, now seen corresponding path program 1 times [2023-12-16 07:36:05,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:05,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1330004610] [2023-12-16 07:36:05,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:05,715 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 07:36:05,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:05,716 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 07:36:05,717 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 07:36:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:05,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:05,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:05,894 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 07:36:05,895 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:05,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:05,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1330004610] [2023-12-16 07:36:05,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1330004610] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:05,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:05,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:05,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681987733] [2023-12-16 07:36:05,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:05,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:36:05,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:05,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:36:05,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:36:05,897 INFO L87 Difference]: Start difference. First operand 2674 states and 4845 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:06,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:06,256 INFO L93 Difference]: Finished difference Result 3212 states and 5713 transitions. [2023-12-16 07:36:06,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:36:06,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 07:36:06,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:06,265 INFO L225 Difference]: With dead ends: 3212 [2023-12-16 07:36:06,265 INFO L226 Difference]: Without dead ends: 2674 [2023-12-16 07:36:06,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 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 07:36:06,268 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 4548 mSDsluCounter, 8344 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4565 SdHoareTripleChecker+Valid, 12576 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:06,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4565 Valid, 12576 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:36:06,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2023-12-16 07:36:06,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2023-12-16 07:36:06,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2618 states have (on average 1.8162719633307869) internal successors, (4755), 2621 states have internal predecessors, (4755), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-16 07:36:06,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 4838 transitions. [2023-12-16 07:36:06,313 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 4838 transitions. Word has length 131 [2023-12-16 07:36:06,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:06,313 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 4838 transitions. [2023-12-16 07:36:06,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:06,313 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 4838 transitions. [2023-12-16 07:36:06,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 07:36:06,314 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:06,315 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:36:06,323 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 07:36:06,523 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 07:36:06,526 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:06,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:06,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1282646567, now seen corresponding path program 1 times [2023-12-16 07:36:06,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:06,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1157819413] [2023-12-16 07:36:06,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:06,527 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 07:36:06,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:06,528 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 07:36:06,529 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 07:36:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:06,648 INFO L262 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:06,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:06,705 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 07:36:06,705 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:06,705 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:06,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1157819413] [2023-12-16 07:36:06,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1157819413] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:06,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:06,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:06,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92057685] [2023-12-16 07:36:06,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:06,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:36:06,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:06,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:36:06,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:36:06,707 INFO L87 Difference]: Start difference. First operand 2674 states and 4838 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:07,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:07,054 INFO L93 Difference]: Finished difference Result 3212 states and 5699 transitions. [2023-12-16 07:36:07,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:36:07,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 07:36:07,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:07,067 INFO L225 Difference]: With dead ends: 3212 [2023-12-16 07:36:07,070 INFO L226 Difference]: Without dead ends: 2674 [2023-12-16 07:36:07,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 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 07:36:07,078 INFO L413 NwaCegarLoop]: 4229 mSDtfsCounter, 4542 mSDsluCounter, 8340 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4559 SdHoareTripleChecker+Valid, 12569 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:07,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4559 Valid, 12569 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:36:07,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2023-12-16 07:36:07,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2023-12-16 07:36:07,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2618 states have (on average 1.813598166539343) internal successors, (4748), 2621 states have internal predecessors, (4748), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-16 07:36:07,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 4831 transitions. [2023-12-16 07:36:07,138 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 4831 transitions. Word has length 131 [2023-12-16 07:36:07,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:07,138 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 4831 transitions. [2023-12-16 07:36:07,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:07,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 4831 transitions. [2023-12-16 07:36:07,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 07:36:07,140 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:07,140 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:07,145 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 07:36:07,345 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 07:36:07,345 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:07,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:07,346 INFO L85 PathProgramCache]: Analyzing trace with hash 171675435, now seen corresponding path program 1 times [2023-12-16 07:36:07,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:07,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2119099846] [2023-12-16 07:36:07,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:07,347 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 07:36:07,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:07,348 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 07:36:07,350 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 07:36:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:07,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:07,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:07,521 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 07:36:07,521 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:07,521 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:07,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2119099846] [2023-12-16 07:36:07,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2119099846] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:07,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:07,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:07,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054857619] [2023-12-16 07:36:07,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:07,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:36:07,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:07,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:36:07,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:36:07,523 INFO L87 Difference]: Start difference. First operand 2674 states and 4831 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:07,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:07,890 INFO L93 Difference]: Finished difference Result 3212 states and 5685 transitions. [2023-12-16 07:36:07,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:36:07,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 07:36:07,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:07,899 INFO L225 Difference]: With dead ends: 3212 [2023-12-16 07:36:07,899 INFO L226 Difference]: Without dead ends: 2674 [2023-12-16 07:36:07,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 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 07:36:07,902 INFO L413 NwaCegarLoop]: 4226 mSDtfsCounter, 4536 mSDsluCounter, 8336 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4553 SdHoareTripleChecker+Valid, 12562 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:07,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4553 Valid, 12562 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:36:07,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2023-12-16 07:36:08,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2023-12-16 07:36:08,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2618 states have (on average 1.8109243697478992) internal successors, (4741), 2621 states have internal predecessors, (4741), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-16 07:36:08,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 4824 transitions. [2023-12-16 07:36:08,017 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 4824 transitions. Word has length 131 [2023-12-16 07:36:08,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:08,018 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 4824 transitions. [2023-12-16 07:36:08,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:08,018 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 4824 transitions. [2023-12-16 07:36:08,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 07:36:08,019 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:08,019 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:36:08,026 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 07:36:08,224 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 07:36:08,224 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:08,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:08,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1526730329, now seen corresponding path program 1 times [2023-12-16 07:36:08,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:08,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458028417] [2023-12-16 07:36:08,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:08,225 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 07:36:08,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:08,226 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 07:36:08,227 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 07:36:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:08,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:08,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:08,410 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 07:36:08,411 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:08,411 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:08,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458028417] [2023-12-16 07:36:08,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1458028417] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:08,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:08,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:08,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891090595] [2023-12-16 07:36:08,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:08,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:36:08,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:08,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:36:08,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:36:08,412 INFO L87 Difference]: Start difference. First operand 2674 states and 4824 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:08,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:08,786 INFO L93 Difference]: Finished difference Result 3212 states and 5671 transitions. [2023-12-16 07:36:08,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:36:08,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 07:36:08,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:08,795 INFO L225 Difference]: With dead ends: 3212 [2023-12-16 07:36:08,795 INFO L226 Difference]: Without dead ends: 2674 [2023-12-16 07:36:08,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 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 07:36:08,797 INFO L413 NwaCegarLoop]: 4223 mSDtfsCounter, 4530 mSDsluCounter, 8332 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4547 SdHoareTripleChecker+Valid, 12555 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:08,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4547 Valid, 12555 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:36:08,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2023-12-16 07:36:08,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2023-12-16 07:36:08,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2618 states have (on average 1.8082505729564553) internal successors, (4734), 2621 states have internal predecessors, (4734), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-16 07:36:08,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 4817 transitions. [2023-12-16 07:36:08,846 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 4817 transitions. Word has length 131 [2023-12-16 07:36:08,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:08,846 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 4817 transitions. [2023-12-16 07:36:08,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:08,847 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 4817 transitions. [2023-12-16 07:36:08,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 07:36:08,848 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:08,848 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:36:08,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-16 07:36:09,058 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 07:36:09,058 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:09,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:09,059 INFO L85 PathProgramCache]: Analyzing trace with hash 626376489, now seen corresponding path program 1 times [2023-12-16 07:36:09,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:09,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218021445] [2023-12-16 07:36:09,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:09,059 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 07:36:09,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:09,060 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 07:36:09,088 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 07:36:09,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:09,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:09,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:09,220 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 07:36:09,221 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:09,221 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:09,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218021445] [2023-12-16 07:36:09,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1218021445] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:09,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:09,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:09,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620374960] [2023-12-16 07:36:09,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:09,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:36:09,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:09,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:36:09,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:36:09,222 INFO L87 Difference]: Start difference. First operand 2674 states and 4817 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:09,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:09,569 INFO L93 Difference]: Finished difference Result 3212 states and 5657 transitions. [2023-12-16 07:36:09,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:36:09,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 07:36:09,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:09,577 INFO L225 Difference]: With dead ends: 3212 [2023-12-16 07:36:09,578 INFO L226 Difference]: Without dead ends: 2674 [2023-12-16 07:36:09,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 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 07:36:09,581 INFO L413 NwaCegarLoop]: 4220 mSDtfsCounter, 4524 mSDsluCounter, 8328 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4541 SdHoareTripleChecker+Valid, 12548 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:09,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4541 Valid, 12548 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:36:09,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2023-12-16 07:36:09,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2023-12-16 07:36:09,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2618 states have (on average 1.8055767761650114) internal successors, (4727), 2621 states have internal predecessors, (4727), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-16 07:36:09,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 4810 transitions. [2023-12-16 07:36:09,626 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 4810 transitions. Word has length 131 [2023-12-16 07:36:09,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:09,626 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 4810 transitions. [2023-12-16 07:36:09,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:09,626 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 4810 transitions. [2023-12-16 07:36:09,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 07:36:09,627 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:09,627 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:36:09,634 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 07:36:09,831 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 07:36:09,832 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:09,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:09,832 INFO L85 PathProgramCache]: Analyzing trace with hash 25727141, now seen corresponding path program 1 times [2023-12-16 07:36:09,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:09,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2026957206] [2023-12-16 07:36:09,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:09,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:36:09,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:09,845 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 07:36:09,885 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 07:36:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:10,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:10,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:10,079 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 07:36:10,079 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:10,080 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:10,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2026957206] [2023-12-16 07:36:10,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2026957206] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:10,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:10,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:10,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956296996] [2023-12-16 07:36:10,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:10,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:36:10,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:10,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:36:10,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:36:10,082 INFO L87 Difference]: Start difference. First operand 2674 states and 4810 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:10,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:10,526 INFO L93 Difference]: Finished difference Result 3212 states and 5643 transitions. [2023-12-16 07:36:10,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:36:10,536 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 07:36:10,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:10,547 INFO L225 Difference]: With dead ends: 3212 [2023-12-16 07:36:10,547 INFO L226 Difference]: Without dead ends: 2674 [2023-12-16 07:36:10,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 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 07:36:10,557 INFO L413 NwaCegarLoop]: 4217 mSDtfsCounter, 4518 mSDsluCounter, 8324 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4535 SdHoareTripleChecker+Valid, 12541 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:10,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4535 Valid, 12541 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:36:10,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2023-12-16 07:36:10,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2023-12-16 07:36:10,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2618 states have (on average 1.8029029793735676) internal successors, (4720), 2621 states have internal predecessors, (4720), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-16 07:36:10,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 4803 transitions. [2023-12-16 07:36:10,638 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 4803 transitions. Word has length 131 [2023-12-16 07:36:10,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:10,638 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 4803 transitions. [2023-12-16 07:36:10,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:10,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 4803 transitions. [2023-12-16 07:36:10,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 07:36:10,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:10,640 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:36:10,678 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 07:36:10,840 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 07:36:10,841 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:10,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:10,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1530372009, now seen corresponding path program 1 times [2023-12-16 07:36:10,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:10,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82413462] [2023-12-16 07:36:10,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:10,845 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 07:36:10,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:10,846 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 07:36:10,883 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 07:36:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:10,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:10,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:11,051 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 07:36:11,052 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:11,052 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:11,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [82413462] [2023-12-16 07:36:11,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [82413462] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:11,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:11,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:11,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747042263] [2023-12-16 07:36:11,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:11,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:36:11,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:11,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:36:11,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:36:11,053 INFO L87 Difference]: Start difference. First operand 2674 states and 4803 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:11,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:11,527 INFO L93 Difference]: Finished difference Result 3212 states and 5629 transitions. [2023-12-16 07:36:11,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:36:11,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 07:36:11,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:11,544 INFO L225 Difference]: With dead ends: 3212 [2023-12-16 07:36:11,544 INFO L226 Difference]: Without dead ends: 2674 [2023-12-16 07:36:11,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 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 07:36:11,547 INFO L413 NwaCegarLoop]: 4214 mSDtfsCounter, 4512 mSDsluCounter, 8320 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4529 SdHoareTripleChecker+Valid, 12534 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:11,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4529 Valid, 12534 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:36:11,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2023-12-16 07:36:11,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2023-12-16 07:36:11,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2618 states have (on average 1.8002291825821237) internal successors, (4713), 2621 states have internal predecessors, (4713), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-16 07:36:11,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 4796 transitions. [2023-12-16 07:36:11,655 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 4796 transitions. Word has length 131 [2023-12-16 07:36:11,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:11,655 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 4796 transitions. [2023-12-16 07:36:11,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:11,655 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 4796 transitions. [2023-12-16 07:36:11,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 07:36:11,656 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:11,656 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:36:11,676 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 07:36:11,861 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 07:36:11,861 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:11,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:11,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1884774363, now seen corresponding path program 1 times [2023-12-16 07:36:11,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:11,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [883365015] [2023-12-16 07:36:11,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:11,862 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 07:36:11,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:11,864 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 07:36:11,865 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 (12)] Waiting until timeout for monitored process [2023-12-16 07:36:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:11,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:11,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:12,074 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 07:36:12,074 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:12,074 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:12,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [883365015] [2023-12-16 07:36:12,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [883365015] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:12,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:12,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:12,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171486964] [2023-12-16 07:36:12,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:12,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:36:12,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:12,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:36:12,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:36:12,075 INFO L87 Difference]: Start difference. First operand 2674 states and 4796 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:12,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:12,736 INFO L93 Difference]: Finished difference Result 3342 states and 5827 transitions. [2023-12-16 07:36:12,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:36:12,737 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 07:36:12,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:12,743 INFO L225 Difference]: With dead ends: 3342 [2023-12-16 07:36:12,743 INFO L226 Difference]: Without dead ends: 2804 [2023-12-16 07:36:12,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 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 07:36:12,746 INFO L413 NwaCegarLoop]: 4212 mSDtfsCounter, 4592 mSDsluCounter, 8316 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4609 SdHoareTripleChecker+Valid, 12528 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:12,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4609 Valid, 12528 Invalid, 535 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:36:12,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2023-12-16 07:36:12,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2804. [2023-12-16 07:36:12,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2804 states, 2742 states have (on average 1.7826404084609775) internal successors, (4888), 2745 states have internal predecessors, (4888), 43 states have call successors, (43), 16 states have call predecessors, (43), 17 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 07:36:12,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2804 states to 2804 states and 4975 transitions. [2023-12-16 07:36:12,799 INFO L78 Accepts]: Start accepts. Automaton has 2804 states and 4975 transitions. Word has length 131 [2023-12-16 07:36:12,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:12,799 INFO L495 AbstractCegarLoop]: Abstraction has 2804 states and 4975 transitions. [2023-12-16 07:36:12,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:12,800 INFO L276 IsEmpty]: Start isEmpty. Operand 2804 states and 4975 transitions. [2023-12-16 07:36:12,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 07:36:12,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:12,801 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:36:12,807 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 07:36:13,005 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 07:36:13,005 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:13,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:13,006 INFO L85 PathProgramCache]: Analyzing trace with hash 605523873, now seen corresponding path program 1 times [2023-12-16 07:36:13,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:13,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834738608] [2023-12-16 07:36:13,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:13,006 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 07:36:13,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:13,008 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 07:36:13,036 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 07:36:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:13,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:13,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:13,196 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 07:36:13,196 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:13,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:13,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1834738608] [2023-12-16 07:36:13,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1834738608] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:13,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:13,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:13,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508537329] [2023-12-16 07:36:13,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:13,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:36:13,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:13,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:36:13,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:36:13,198 INFO L87 Difference]: Start difference. First operand 2804 states and 4975 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:13,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:13,862 INFO L93 Difference]: Finished difference Result 3602 states and 6185 transitions. [2023-12-16 07:36:13,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:36:13,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 07:36:13,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:13,866 INFO L225 Difference]: With dead ends: 3602 [2023-12-16 07:36:13,866 INFO L226 Difference]: Without dead ends: 2934 [2023-12-16 07:36:13,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 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 07:36:13,868 INFO L413 NwaCegarLoop]: 4209 mSDtfsCounter, 4586 mSDsluCounter, 8312 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4603 SdHoareTripleChecker+Valid, 12521 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:13,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4603 Valid, 12521 Invalid, 530 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:36:13,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2023-12-16 07:36:13,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 2934. [2023-12-16 07:36:13,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2934 states, 2866 states have (on average 1.7651779483600838) internal successors, (5059), 2869 states have internal predecessors, (5059), 45 states have call successors, (45), 20 states have call predecessors, (45), 21 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2023-12-16 07:36:13,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2934 states to 2934 states and 5150 transitions. [2023-12-16 07:36:13,918 INFO L78 Accepts]: Start accepts. Automaton has 2934 states and 5150 transitions. Word has length 131 [2023-12-16 07:36:13,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:13,918 INFO L495 AbstractCegarLoop]: Abstraction has 2934 states and 5150 transitions. [2023-12-16 07:36:13,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:13,918 INFO L276 IsEmpty]: Start isEmpty. Operand 2934 states and 5150 transitions. [2023-12-16 07:36:13,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 07:36:13,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:13,919 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:36:13,926 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 (13)] Ended with exit code 0 [2023-12-16 07:36:14,124 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 07:36:14,124 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:14,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:14,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1498097114, now seen corresponding path program 1 times [2023-12-16 07:36:14,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:14,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1743687566] [2023-12-16 07:36:14,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:14,125 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 07:36:14,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:14,126 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 07:36:14,126 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 07:36:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:14,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:14,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:14,287 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 07:36:14,287 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:14,287 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:14,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1743687566] [2023-12-16 07:36:14,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1743687566] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:14,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:14,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:14,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807603234] [2023-12-16 07:36:14,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:14,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:36:14,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:14,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:36:14,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:36:14,289 INFO L87 Difference]: Start difference. First operand 2934 states and 5150 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:14,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:14,708 INFO L93 Difference]: Finished difference Result 3862 states and 6535 transitions. [2023-12-16 07:36:14,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:36:14,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 07:36:14,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:14,714 INFO L225 Difference]: With dead ends: 3862 [2023-12-16 07:36:14,714 INFO L226 Difference]: Without dead ends: 3064 [2023-12-16 07:36:14,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 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 07:36:14,716 INFO L413 NwaCegarLoop]: 4206 mSDtfsCounter, 4579 mSDsluCounter, 8308 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4596 SdHoareTripleChecker+Valid, 12514 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:14,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4596 Valid, 12514 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:36:14,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3064 states. [2023-12-16 07:36:14,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3064 to 3064. [2023-12-16 07:36:14,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3064 states, 2990 states have (on average 1.7478260869565216) internal successors, (5226), 2993 states have internal predecessors, (5226), 47 states have call successors, (47), 24 states have call predecessors, (47), 25 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 07:36:14,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3064 states to 3064 states and 5321 transitions. [2023-12-16 07:36:14,772 INFO L78 Accepts]: Start accepts. Automaton has 3064 states and 5321 transitions. Word has length 131 [2023-12-16 07:36:14,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:14,772 INFO L495 AbstractCegarLoop]: Abstraction has 3064 states and 5321 transitions. [2023-12-16 07:36:14,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:14,772 INFO L276 IsEmpty]: Start isEmpty. Operand 3064 states and 5321 transitions. [2023-12-16 07:36:14,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 07:36:14,773 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:14,773 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:36:14,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 07:36:14,977 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 07:36:14,978 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:14,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:14,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1932505729, now seen corresponding path program 1 times [2023-12-16 07:36:14,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:14,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1443643870] [2023-12-16 07:36:14,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:14,979 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 07:36:14,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:14,980 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 07:36:14,980 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 07:36:15,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:15,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:15,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:15,201 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 07:36:15,201 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:15,201 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:15,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1443643870] [2023-12-16 07:36:15,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1443643870] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:15,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:15,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:15,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407843041] [2023-12-16 07:36:15,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:15,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:36:15,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:15,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:36:15,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:36:15,203 INFO L87 Difference]: Start difference. First operand 3064 states and 5321 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:15,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:15,846 INFO L93 Difference]: Finished difference Result 4122 states and 6877 transitions. [2023-12-16 07:36:15,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:36:15,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 07:36:15,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:15,854 INFO L225 Difference]: With dead ends: 4122 [2023-12-16 07:36:15,854 INFO L226 Difference]: Without dead ends: 3194 [2023-12-16 07:36:15,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 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 07:36:15,856 INFO L413 NwaCegarLoop]: 4203 mSDtfsCounter, 4572 mSDsluCounter, 8304 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4589 SdHoareTripleChecker+Valid, 12507 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:15,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4589 Valid, 12507 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 07:36:15,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2023-12-16 07:36:15,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 3194. [2023-12-16 07:36:15,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3194 states, 3114 states have (on average 1.7305716120745023) internal successors, (5389), 3117 states have internal predecessors, (5389), 49 states have call successors, (49), 28 states have call predecessors, (49), 29 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-16 07:36:15,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3194 states to 3194 states and 5488 transitions. [2023-12-16 07:36:15,914 INFO L78 Accepts]: Start accepts. Automaton has 3194 states and 5488 transitions. Word has length 131 [2023-12-16 07:36:15,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:15,914 INFO L495 AbstractCegarLoop]: Abstraction has 3194 states and 5488 transitions. [2023-12-16 07:36:15,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:15,914 INFO L276 IsEmpty]: Start isEmpty. Operand 3194 states and 5488 transitions. [2023-12-16 07:36:15,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 07:36:15,915 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:15,915 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:36:15,922 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 07:36:16,119 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 07:36:16,120 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:16,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:16,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1331420669, now seen corresponding path program 1 times [2023-12-16 07:36:16,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:16,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940880346] [2023-12-16 07:36:16,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:16,121 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 07:36:16,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:16,123 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 07:36:16,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 07:36:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:16,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:16,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:16,351 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 07:36:16,351 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:16,351 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:16,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940880346] [2023-12-16 07:36:16,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [940880346] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:16,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:16,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:16,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181702034] [2023-12-16 07:36:16,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:16,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:36:16,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:16,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:36:16,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:36:16,353 INFO L87 Difference]: Start difference. First operand 3194 states and 5488 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:16,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:16,894 INFO L93 Difference]: Finished difference Result 4382 states and 7211 transitions. [2023-12-16 07:36:16,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:36:16,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 07:36:16,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:16,935 INFO L225 Difference]: With dead ends: 4382 [2023-12-16 07:36:16,935 INFO L226 Difference]: Without dead ends: 3324 [2023-12-16 07:36:16,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 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 07:36:16,994 INFO L413 NwaCegarLoop]: 4200 mSDtfsCounter, 4565 mSDsluCounter, 8300 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4582 SdHoareTripleChecker+Valid, 12500 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:16,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4582 Valid, 12500 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:36:17,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3324 states. [2023-12-16 07:36:17,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3324 to 3324. [2023-12-16 07:36:17,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3324 states, 3238 states have (on average 1.7134033353922173) internal successors, (5548), 3241 states have internal predecessors, (5548), 51 states have call successors, (51), 32 states have call predecessors, (51), 33 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-16 07:36:17,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3324 states to 3324 states and 5651 transitions. [2023-12-16 07:36:17,112 INFO L78 Accepts]: Start accepts. Automaton has 3324 states and 5651 transitions. Word has length 131 [2023-12-16 07:36:17,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:17,112 INFO L495 AbstractCegarLoop]: Abstraction has 3324 states and 5651 transitions. [2023-12-16 07:36:17,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:17,112 INFO L276 IsEmpty]: Start isEmpty. Operand 3324 states and 5651 transitions. [2023-12-16 07:36:17,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 07:36:17,113 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:17,114 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:36:17,120 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 07:36:17,318 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 07:36:17,318 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:17,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:17,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1980916766, now seen corresponding path program 1 times [2023-12-16 07:36:17,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:17,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631530974] [2023-12-16 07:36:17,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:17,319 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 07:36:17,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:17,320 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 07:36:17,354 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 07:36:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:17,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:17,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:17,496 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 07:36:17,497 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:17,497 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:17,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631530974] [2023-12-16 07:36:17,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1631530974] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:17,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:17,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:17,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990375511] [2023-12-16 07:36:17,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:17,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:36:17,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:17,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:36:17,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:36:17,499 INFO L87 Difference]: Start difference. First operand 3324 states and 5651 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:18,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:18,102 INFO L93 Difference]: Finished difference Result 4642 states and 7537 transitions. [2023-12-16 07:36:18,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:36:18,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 07:36:18,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:18,123 INFO L225 Difference]: With dead ends: 4642 [2023-12-16 07:36:18,123 INFO L226 Difference]: Without dead ends: 3454 [2023-12-16 07:36:18,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 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 07:36:18,143 INFO L413 NwaCegarLoop]: 4197 mSDtfsCounter, 4558 mSDsluCounter, 8296 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4575 SdHoareTripleChecker+Valid, 12493 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:18,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4575 Valid, 12493 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:36:18,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3454 states. [2023-12-16 07:36:18,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3454 to 3454. [2023-12-16 07:36:18,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3454 states, 3362 states have (on average 1.6963117192147532) internal successors, (5703), 3365 states have internal predecessors, (5703), 53 states have call successors, (53), 36 states have call predecessors, (53), 37 states have return successors, (54), 53 states have call predecessors, (54), 53 states have call successors, (54) [2023-12-16 07:36:18,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3454 states to 3454 states and 5810 transitions. [2023-12-16 07:36:18,502 INFO L78 Accepts]: Start accepts. Automaton has 3454 states and 5810 transitions. Word has length 131 [2023-12-16 07:36:18,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:18,502 INFO L495 AbstractCegarLoop]: Abstraction has 3454 states and 5810 transitions. [2023-12-16 07:36:18,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:18,502 INFO L276 IsEmpty]: Start isEmpty. Operand 3454 states and 5810 transitions. [2023-12-16 07:36:18,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 07:36:18,503 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:18,504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:36:18,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-16 07:36:18,708 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 07:36:18,709 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:18,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:18,709 INFO L85 PathProgramCache]: Analyzing trace with hash -290277598, now seen corresponding path program 1 times [2023-12-16 07:36:18,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:18,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [685341774] [2023-12-16 07:36:18,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:18,710 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 07:36:18,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:18,711 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 07:36:18,748 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 07:36:18,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:18,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:18,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:18,958 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 07:36:18,958 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:18,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:18,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [685341774] [2023-12-16 07:36:18,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [685341774] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:18,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:18,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:18,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906567375] [2023-12-16 07:36:18,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:18,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:36:18,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:18,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:36:18,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:36:18,961 INFO L87 Difference]: Start difference. First operand 3454 states and 5810 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:19,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:19,470 INFO L93 Difference]: Finished difference Result 4902 states and 7855 transitions. [2023-12-16 07:36:19,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:36:19,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 07:36:19,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:19,488 INFO L225 Difference]: With dead ends: 4902 [2023-12-16 07:36:19,489 INFO L226 Difference]: Without dead ends: 3584 [2023-12-16 07:36:19,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 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 07:36:19,493 INFO L413 NwaCegarLoop]: 4194 mSDtfsCounter, 4551 mSDsluCounter, 8292 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4568 SdHoareTripleChecker+Valid, 12486 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:19,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4568 Valid, 12486 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:36:19,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3584 states. [2023-12-16 07:36:19,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3584 to 3584. [2023-12-16 07:36:19,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3584 states, 3486 states have (on average 1.6792885829030408) internal successors, (5854), 3489 states have internal predecessors, (5854), 55 states have call successors, (55), 40 states have call predecessors, (55), 41 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-16 07:36:19,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3584 states to 3584 states and 5965 transitions. [2023-12-16 07:36:19,576 INFO L78 Accepts]: Start accepts. Automaton has 3584 states and 5965 transitions. Word has length 131 [2023-12-16 07:36:19,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:19,576 INFO L495 AbstractCegarLoop]: Abstraction has 3584 states and 5965 transitions. [2023-12-16 07:36:19,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:19,576 INFO L276 IsEmpty]: Start isEmpty. Operand 3584 states and 5965 transitions. [2023-12-16 07:36:19,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 07:36:19,577 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:19,577 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:36:19,584 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 07:36:19,784 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 07:36:19,785 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:19,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:19,785 INFO L85 PathProgramCache]: Analyzing trace with hash -2061856003, now seen corresponding path program 1 times [2023-12-16 07:36:19,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:19,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [927512097] [2023-12-16 07:36:19,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:19,786 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:36:19,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:19,787 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:36:19,821 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 (19)] Waiting until timeout for monitored process [2023-12-16 07:36:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:19,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:19,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:19,943 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 07:36:19,943 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:19,943 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:19,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [927512097] [2023-12-16 07:36:19,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [927512097] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:19,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:19,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:19,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605741612] [2023-12-16 07:36:19,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:19,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:36:19,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:19,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:36:19,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:36:19,946 INFO L87 Difference]: Start difference. First operand 3584 states and 5965 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:20,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:20,531 INFO L93 Difference]: Finished difference Result 5162 states and 8165 transitions. [2023-12-16 07:36:20,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:36:20,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 07:36:20,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:20,537 INFO L225 Difference]: With dead ends: 5162 [2023-12-16 07:36:20,537 INFO L226 Difference]: Without dead ends: 3714 [2023-12-16 07:36:20,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 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 07:36:20,539 INFO L413 NwaCegarLoop]: 4191 mSDtfsCounter, 4543 mSDsluCounter, 8288 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4560 SdHoareTripleChecker+Valid, 12479 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:20,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4560 Valid, 12479 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:36:20,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3714 states. [2023-12-16 07:36:20,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3714 to 3714. [2023-12-16 07:36:20,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3714 states, 3610 states have (on average 1.6623268698060942) internal successors, (6001), 3613 states have internal predecessors, (6001), 57 states have call successors, (57), 44 states have call predecessors, (57), 45 states have return successors, (58), 57 states have call predecessors, (58), 57 states have call successors, (58) [2023-12-16 07:36:20,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3714 states to 3714 states and 6116 transitions. [2023-12-16 07:36:20,614 INFO L78 Accepts]: Start accepts. Automaton has 3714 states and 6116 transitions. Word has length 131 [2023-12-16 07:36:20,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:20,614 INFO L495 AbstractCegarLoop]: Abstraction has 3714 states and 6116 transitions. [2023-12-16 07:36:20,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:36:20,615 INFO L276 IsEmpty]: Start isEmpty. Operand 3714 states and 6116 transitions. [2023-12-16 07:36:20,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 07:36:20,615 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:20,616 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:36:20,622 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 07:36:20,819 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 07:36:20,820 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:20,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:20,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1639856280, now seen corresponding path program 1 times [2023-12-16 07:36:20,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:20,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282130933] [2023-12-16 07:36:20,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:20,821 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:36:20,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:20,837 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 07:36:20,909 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 07:36:20,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:21,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:36:21,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:21,226 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 07:36:21,226 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:21,226 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:21,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282130933] [2023-12-16 07:36:21,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282130933] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:21,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:21,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:36:21,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934986153] [2023-12-16 07:36:21,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:21,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:36:21,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:21,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:36:21,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:36:21,228 INFO L87 Difference]: Start difference. First operand 3714 states and 6116 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 07:36:21,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:21,416 INFO L93 Difference]: Finished difference Result 6841 states and 10369 transitions. [2023-12-16 07:36:21,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:36:21,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 131 [2023-12-16 07:36:21,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:21,423 INFO L225 Difference]: With dead ends: 6841 [2023-12-16 07:36:21,423 INFO L226 Difference]: Without dead ends: 5264 [2023-12-16 07:36:21,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 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 07:36:21,427 INFO L413 NwaCegarLoop]: 4372 mSDtfsCounter, 4220 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4220 SdHoareTripleChecker+Valid, 4700 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:21,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4220 Valid, 4700 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:36:21,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5264 states. [2023-12-16 07:36:21,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5264 to 5262. [2023-12-16 07:36:21,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5262 states, 5060 states have (on average 1.5717391304347825) internal successors, (7953), 5066 states have internal predecessors, (7953), 110 states have call successors, (110), 88 states have call predecessors, (110), 90 states have return successors, (112), 108 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-16 07:36:21,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5262 states to 5262 states and 8175 transitions. [2023-12-16 07:36:21,682 INFO L78 Accepts]: Start accepts. Automaton has 5262 states and 8175 transitions. Word has length 131 [2023-12-16 07:36:21,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:21,682 INFO L495 AbstractCegarLoop]: Abstraction has 5262 states and 8175 transitions. [2023-12-16 07:36:21,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 07:36:21,682 INFO L276 IsEmpty]: Start isEmpty. Operand 5262 states and 8175 transitions. [2023-12-16 07:36:21,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-16 07:36:21,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:21,686 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:21,693 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 07:36:21,893 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 07:36:21,894 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:21,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:21,895 INFO L85 PathProgramCache]: Analyzing trace with hash -2050171894, now seen corresponding path program 1 times [2023-12-16 07:36:21,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:21,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241997582] [2023-12-16 07:36:21,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:21,895 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:36:21,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:21,896 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 07:36:21,913 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 07:36:22,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:22,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:22,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:22,073 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-16 07:36:22,073 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:22,074 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:22,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241997582] [2023-12-16 07:36:22,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241997582] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:22,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:22,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:22,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384141516] [2023-12-16 07:36:22,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:22,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:36:22,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:22,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:36:22,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:36:22,075 INFO L87 Difference]: Start difference. First operand 5262 states and 8175 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:22,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:22,342 INFO L93 Difference]: Finished difference Result 9431 states and 13870 transitions. [2023-12-16 07:36:22,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:36:22,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-16 07:36:22,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:22,356 INFO L225 Difference]: With dead ends: 9431 [2023-12-16 07:36:22,356 INFO L226 Difference]: Without dead ends: 6306 [2023-12-16 07:36:22,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 208 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 07:36:22,365 INFO L413 NwaCegarLoop]: 4322 mSDtfsCounter, 83 mSDsluCounter, 8639 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 12961 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:22,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 12961 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:36:22,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6306 states. [2023-12-16 07:36:22,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6306 to 5298. [2023-12-16 07:36:22,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5298 states, 5096 states have (on average 1.5641679748822606) internal successors, (7971), 5102 states have internal predecessors, (7971), 110 states have call successors, (110), 88 states have call predecessors, (110), 90 states have return successors, (112), 108 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-16 07:36:22,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5298 states to 5298 states and 8193 transitions. [2023-12-16 07:36:22,541 INFO L78 Accepts]: Start accepts. Automaton has 5298 states and 8193 transitions. Word has length 211 [2023-12-16 07:36:22,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:22,541 INFO L495 AbstractCegarLoop]: Abstraction has 5298 states and 8193 transitions. [2023-12-16 07:36:22,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:22,541 INFO L276 IsEmpty]: Start isEmpty. Operand 5298 states and 8193 transitions. [2023-12-16 07:36:22,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-16 07:36:22,544 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:22,544 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:22,552 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 07:36:22,749 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 07:36:22,750 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:22,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:22,750 INFO L85 PathProgramCache]: Analyzing trace with hash 676237318, now seen corresponding path program 1 times [2023-12-16 07:36:22,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:22,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797937284] [2023-12-16 07:36:22,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:22,751 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 07:36:22,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:22,769 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 07:36:22,816 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 07:36:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:23,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:23,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:23,131 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-16 07:36:23,131 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:23,132 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:23,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797937284] [2023-12-16 07:36:23,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797937284] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:23,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:23,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:23,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621567228] [2023-12-16 07:36:23,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:23,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:36:23,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:23,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:36:23,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:36:23,133 INFO L87 Difference]: Start difference. First operand 5298 states and 8193 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:23,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:23,465 INFO L93 Difference]: Finished difference Result 8667 states and 12763 transitions. [2023-12-16 07:36:23,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:36:23,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-16 07:36:23,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:23,501 INFO L225 Difference]: With dead ends: 8667 [2023-12-16 07:36:23,501 INFO L226 Difference]: Without dead ends: 5506 [2023-12-16 07:36:23,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 208 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 07:36:23,526 INFO L413 NwaCegarLoop]: 4320 mSDtfsCounter, 74 mSDsluCounter, 8628 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 12948 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:23,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 12948 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:36:23,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5506 states. [2023-12-16 07:36:23,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5506 to 5306. [2023-12-16 07:36:23,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5306 states, 5104 states have (on average 1.557014106583072) internal successors, (7947), 5110 states have internal predecessors, (7947), 110 states have call successors, (110), 88 states have call predecessors, (110), 90 states have return successors, (112), 108 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-16 07:36:24,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5306 states to 5306 states and 8169 transitions. [2023-12-16 07:36:24,005 INFO L78 Accepts]: Start accepts. Automaton has 5306 states and 8169 transitions. Word has length 211 [2023-12-16 07:36:24,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:24,005 INFO L495 AbstractCegarLoop]: Abstraction has 5306 states and 8169 transitions. [2023-12-16 07:36:24,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:24,006 INFO L276 IsEmpty]: Start isEmpty. Operand 5306 states and 8169 transitions. [2023-12-16 07:36:24,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-16 07:36:24,008 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:24,009 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:24,026 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 07:36:24,214 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 07:36:24,215 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:24,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:24,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1112755850, now seen corresponding path program 1 times [2023-12-16 07:36:24,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:24,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1247831798] [2023-12-16 07:36:24,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:24,216 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 07:36:24,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:24,236 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 07:36:24,316 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 07:36:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:24,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:24,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:24,467 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-16 07:36:24,468 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:24,468 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:24,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1247831798] [2023-12-16 07:36:24,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1247831798] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:24,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:24,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:24,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944691721] [2023-12-16 07:36:24,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:24,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:36:24,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:24,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:36:24,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:36:24,469 INFO L87 Difference]: Start difference. First operand 5306 states and 8169 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:24,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:24,733 INFO L93 Difference]: Finished difference Result 8659 states and 12683 transitions. [2023-12-16 07:36:24,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:36:24,733 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-16 07:36:24,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:24,740 INFO L225 Difference]: With dead ends: 8659 [2023-12-16 07:36:24,740 INFO L226 Difference]: Without dead ends: 5490 [2023-12-16 07:36:24,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 208 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 07:36:24,746 INFO L413 NwaCegarLoop]: 4320 mSDtfsCounter, 65 mSDsluCounter, 8629 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 12949 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:24,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 12949 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:36:24,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5490 states. [2023-12-16 07:36:24,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5490 to 5314. [2023-12-16 07:36:24,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5314 states, 5112 states have (on average 1.5498826291079812) internal successors, (7923), 5118 states have internal predecessors, (7923), 110 states have call successors, (110), 88 states have call predecessors, (110), 90 states have return successors, (112), 108 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-16 07:36:24,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5314 states to 5314 states and 8145 transitions. [2023-12-16 07:36:24,885 INFO L78 Accepts]: Start accepts. Automaton has 5314 states and 8145 transitions. Word has length 211 [2023-12-16 07:36:24,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:24,885 INFO L495 AbstractCegarLoop]: Abstraction has 5314 states and 8145 transitions. [2023-12-16 07:36:24,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:24,885 INFO L276 IsEmpty]: Start isEmpty. Operand 5314 states and 8145 transitions. [2023-12-16 07:36:24,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-16 07:36:24,901 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:24,901 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:24,918 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 07:36:25,104 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 07:36:25,108 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:25,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:25,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1361743238, now seen corresponding path program 1 times [2023-12-16 07:36:25,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:25,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1479991117] [2023-12-16 07:36:25,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:25,109 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 07:36:25,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:25,125 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 07:36:25,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-16 07:36:25,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:25,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:25,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:25,316 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 07:36:25,317 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:25,317 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:25,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1479991117] [2023-12-16 07:36:25,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1479991117] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:25,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:25,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:25,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798733678] [2023-12-16 07:36:25,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:25,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:36:25,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:25,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:36:25,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:36:25,318 INFO L87 Difference]: Start difference. First operand 5314 states and 8145 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:25,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:25,611 INFO L93 Difference]: Finished difference Result 8651 states and 12603 transitions. [2023-12-16 07:36:25,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:36:25,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-16 07:36:25,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:25,618 INFO L225 Difference]: With dead ends: 8651 [2023-12-16 07:36:25,619 INFO L226 Difference]: Without dead ends: 5474 [2023-12-16 07:36:25,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 208 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 07:36:25,625 INFO L413 NwaCegarLoop]: 4320 mSDtfsCounter, 56 mSDsluCounter, 8630 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 12950 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:25,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 12950 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:36:25,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5474 states. [2023-12-16 07:36:25,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5474 to 5322. [2023-12-16 07:36:25,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5322 states, 5120 states have (on average 1.5427734375) internal successors, (7899), 5126 states have internal predecessors, (7899), 110 states have call successors, (110), 88 states have call predecessors, (110), 90 states have return successors, (112), 108 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-16 07:36:25,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5322 states to 5322 states and 8121 transitions. [2023-12-16 07:36:25,796 INFO L78 Accepts]: Start accepts. Automaton has 5322 states and 8121 transitions. Word has length 211 [2023-12-16 07:36:25,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:25,796 INFO L495 AbstractCegarLoop]: Abstraction has 5322 states and 8121 transitions. [2023-12-16 07:36:25,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:25,796 INFO L276 IsEmpty]: Start isEmpty. Operand 5322 states and 8121 transitions. [2023-12-16 07:36:25,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-16 07:36:25,800 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:25,800 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:25,806 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 07:36:26,004 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 07:36:26,005 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:26,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:26,005 INFO L85 PathProgramCache]: Analyzing trace with hash 474931466, now seen corresponding path program 1 times [2023-12-16 07:36:26,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:26,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241238830] [2023-12-16 07:36:26,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:26,006 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 07:36:26,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:26,007 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 07:36:26,032 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 07:36:26,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:26,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:26,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:26,208 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-16 07:36:26,208 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:26,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:26,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241238830] [2023-12-16 07:36:26,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241238830] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:26,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:26,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:26,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907224328] [2023-12-16 07:36:26,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:26,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:36:26,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:26,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:36:26,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:36:26,210 INFO L87 Difference]: Start difference. First operand 5322 states and 8121 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:26,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:26,621 INFO L93 Difference]: Finished difference Result 8619 states and 12491 transitions. [2023-12-16 07:36:26,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:36:26,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-16 07:36:26,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:26,627 INFO L225 Difference]: With dead ends: 8619 [2023-12-16 07:36:26,627 INFO L226 Difference]: Without dead ends: 5434 [2023-12-16 07:36:26,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 208 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 07:36:26,631 INFO L413 NwaCegarLoop]: 4320 mSDtfsCounter, 38 mSDsluCounter, 8632 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 12952 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:26,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 12952 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:36:26,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5434 states. [2023-12-16 07:36:26,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5434 to 5330. [2023-12-16 07:36:26,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5330 states, 5128 states have (on average 1.5356864274570983) internal successors, (7875), 5134 states have internal predecessors, (7875), 110 states have call successors, (110), 88 states have call predecessors, (110), 90 states have return successors, (112), 108 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-16 07:36:26,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5330 states to 5330 states and 8097 transitions. [2023-12-16 07:36:26,825 INFO L78 Accepts]: Start accepts. Automaton has 5330 states and 8097 transitions. Word has length 211 [2023-12-16 07:36:26,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:26,825 INFO L495 AbstractCegarLoop]: Abstraction has 5330 states and 8097 transitions. [2023-12-16 07:36:26,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:26,826 INFO L276 IsEmpty]: Start isEmpty. Operand 5330 states and 8097 transitions. [2023-12-16 07:36:26,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-16 07:36:26,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:26,829 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:26,840 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 07:36:27,040 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 07:36:27,041 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:27,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:27,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1709635186, now seen corresponding path program 1 times [2023-12-16 07:36:27,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:27,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259262175] [2023-12-16 07:36:27,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:27,043 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:36:27,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:27,044 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 07:36:27,067 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 07:36:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:27,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:27,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:27,279 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-16 07:36:27,279 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:27,279 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:27,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259262175] [2023-12-16 07:36:27,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259262175] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:27,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:27,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:27,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611989613] [2023-12-16 07:36:27,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:27,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:36:27,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:27,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:36:27,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:36:27,280 INFO L87 Difference]: Start difference. First operand 5330 states and 8097 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:27,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:27,538 INFO L93 Difference]: Finished difference Result 8611 states and 12411 transitions. [2023-12-16 07:36:27,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:36:27,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-16 07:36:27,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:27,559 INFO L225 Difference]: With dead ends: 8611 [2023-12-16 07:36:27,559 INFO L226 Difference]: Without dead ends: 5418 [2023-12-16 07:36:27,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 208 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 07:36:27,565 INFO L413 NwaCegarLoop]: 4320 mSDtfsCounter, 29 mSDsluCounter, 8633 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 12953 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:27,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 12953 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:36:27,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5418 states. [2023-12-16 07:36:27,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5418 to 5338. [2023-12-16 07:36:27,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5338 states, 5136 states have (on average 1.528621495327103) internal successors, (7851), 5142 states have internal predecessors, (7851), 110 states have call successors, (110), 88 states have call predecessors, (110), 90 states have return successors, (112), 108 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-16 07:36:27,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 8073 transitions. [2023-12-16 07:36:27,804 INFO L78 Accepts]: Start accepts. Automaton has 5338 states and 8073 transitions. Word has length 211 [2023-12-16 07:36:27,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:27,805 INFO L495 AbstractCegarLoop]: Abstraction has 5338 states and 8073 transitions. [2023-12-16 07:36:27,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:27,805 INFO L276 IsEmpty]: Start isEmpty. Operand 5338 states and 8073 transitions. [2023-12-16 07:36:27,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-16 07:36:27,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:27,808 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:27,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-16 07:36:28,013 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 07:36:28,013 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:28,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:28,014 INFO L85 PathProgramCache]: Analyzing trace with hash 636526218, now seen corresponding path program 1 times [2023-12-16 07:36:28,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:28,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631789132] [2023-12-16 07:36:28,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:28,014 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 07:36:28,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:28,015 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 07:36:28,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-16 07:36:28,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:28,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:28,146 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:28,168 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-16 07:36:28,168 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:28,169 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:28,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631789132] [2023-12-16 07:36:28,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1631789132] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:28,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:28,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:28,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503780538] [2023-12-16 07:36:28,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:28,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:36:28,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:28,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:36:28,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:36:28,171 INFO L87 Difference]: Start difference. First operand 5338 states and 8073 transitions. Second operand has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:28,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:28,390 INFO L93 Difference]: Finished difference Result 8603 states and 12331 transitions. [2023-12-16 07:36:28,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:36:28,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-16 07:36:28,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:28,397 INFO L225 Difference]: With dead ends: 8603 [2023-12-16 07:36:28,398 INFO L226 Difference]: Without dead ends: 5402 [2023-12-16 07:36:28,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 208 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 07:36:28,405 INFO L413 NwaCegarLoop]: 4320 mSDtfsCounter, 20 mSDsluCounter, 8634 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 12954 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:28,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 12954 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:36:28,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5402 states. [2023-12-16 07:36:28,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5402 to 5346. [2023-12-16 07:36:28,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5346 states, 5144 states have (on average 1.5215785381026439) internal successors, (7827), 5150 states have internal predecessors, (7827), 110 states have call successors, (110), 88 states have call predecessors, (110), 90 states have return successors, (112), 108 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-16 07:36:28,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5346 states to 5346 states and 8049 transitions. [2023-12-16 07:36:28,692 INFO L78 Accepts]: Start accepts. Automaton has 5346 states and 8049 transitions. Word has length 211 [2023-12-16 07:36:28,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:28,692 INFO L495 AbstractCegarLoop]: Abstraction has 5346 states and 8049 transitions. [2023-12-16 07:36:28,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:28,692 INFO L276 IsEmpty]: Start isEmpty. Operand 5346 states and 8049 transitions. [2023-12-16 07:36:28,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-16 07:36:28,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:28,708 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:28,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-16 07:36:28,915 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 07:36:28,916 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:28,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:28,917 INFO L85 PathProgramCache]: Analyzing trace with hash 515300366, now seen corresponding path program 1 times [2023-12-16 07:36:28,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:28,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499791099] [2023-12-16 07:36:28,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:28,917 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 07:36:28,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:28,918 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 07:36:28,928 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 07:36:29,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:29,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:29,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:29,081 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 07:36:29,081 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:29,081 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:29,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499791099] [2023-12-16 07:36:29,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1499791099] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:29,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:29,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:29,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367130088] [2023-12-16 07:36:29,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:29,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:36:29,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:29,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:36:29,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:36:29,094 INFO L87 Difference]: Start difference. First operand 5346 states and 8049 transitions. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:29,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:29,317 INFO L93 Difference]: Finished difference Result 8915 states and 12674 transitions. [2023-12-16 07:36:29,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:36:29,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-16 07:36:29,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:29,324 INFO L225 Difference]: With dead ends: 8915 [2023-12-16 07:36:29,325 INFO L226 Difference]: Without dead ends: 5706 [2023-12-16 07:36:29,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 208 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 07:36:29,349 INFO L413 NwaCegarLoop]: 4320 mSDtfsCounter, 11 mSDsluCounter, 8635 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12955 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:29,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12955 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:36:29,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5706 states. [2023-12-16 07:36:29,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5706 to 5418. [2023-12-16 07:36:29,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5216 states have (on average 1.5143788343558282) internal successors, (7899), 5222 states have internal predecessors, (7899), 110 states have call successors, (110), 88 states have call predecessors, (110), 90 states have return successors, (112), 108 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-16 07:36:29,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 8121 transitions. [2023-12-16 07:36:29,539 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 8121 transitions. Word has length 211 [2023-12-16 07:36:29,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:29,539 INFO L495 AbstractCegarLoop]: Abstraction has 5418 states and 8121 transitions. [2023-12-16 07:36:29,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:29,540 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 8121 transitions. [2023-12-16 07:36:29,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-16 07:36:29,566 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:29,566 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:29,573 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 07:36:29,771 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 07:36:29,772 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:29,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:29,773 INFO L85 PathProgramCache]: Analyzing trace with hash -308724726, now seen corresponding path program 1 times [2023-12-16 07:36:29,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:29,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [310372878] [2023-12-16 07:36:29,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:29,773 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 07:36:29,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:29,793 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 07:36:29,840 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 07:36:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:29,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:29,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:29,963 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 07:36:29,964 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:29,964 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:29,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [310372878] [2023-12-16 07:36:29,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [310372878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:29,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:29,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:29,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943011162] [2023-12-16 07:36:29,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:29,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:36:29,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:29,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:36:29,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:36:29,965 INFO L87 Difference]: Start difference. First operand 5418 states and 8121 transitions. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:30,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:30,184 INFO L93 Difference]: Finished difference Result 8715 states and 12359 transitions. [2023-12-16 07:36:30,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:36:30,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-16 07:36:30,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:30,191 INFO L225 Difference]: With dead ends: 8715 [2023-12-16 07:36:30,192 INFO L226 Difference]: Without dead ends: 5434 [2023-12-16 07:36:30,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 208 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 07:36:30,196 INFO L413 NwaCegarLoop]: 4320 mSDtfsCounter, 2 mSDsluCounter, 8635 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12955 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:30,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12955 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:36:30,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5434 states. [2023-12-16 07:36:30,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5434 to 5426. [2023-12-16 07:36:30,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5426 states, 5224 states have (on average 1.5074655436447166) internal successors, (7875), 5230 states have internal predecessors, (7875), 110 states have call successors, (110), 88 states have call predecessors, (110), 90 states have return successors, (112), 108 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-16 07:36:30,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5426 states to 5426 states and 8097 transitions. [2023-12-16 07:36:30,375 INFO L78 Accepts]: Start accepts. Automaton has 5426 states and 8097 transitions. Word has length 211 [2023-12-16 07:36:30,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:30,376 INFO L495 AbstractCegarLoop]: Abstraction has 5426 states and 8097 transitions. [2023-12-16 07:36:30,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:30,376 INFO L276 IsEmpty]: Start isEmpty. Operand 5426 states and 8097 transitions. [2023-12-16 07:36:30,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-16 07:36:30,382 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:30,389 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:36:30,396 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 (29)] Forceful destruction successful, exit code 0 [2023-12-16 07:36:30,590 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 07:36:30,590 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:30,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:30,591 INFO L85 PathProgramCache]: Analyzing trace with hash 880922254, now seen corresponding path program 1 times [2023-12-16 07:36:30,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:30,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231112561] [2023-12-16 07:36:30,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:30,591 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 07:36:30,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:30,593 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 07:36:30,623 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 07:36:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:30,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:36:30,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:30,876 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-16 07:36:30,876 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:30,877 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:30,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231112561] [2023-12-16 07:36:30,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1231112561] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:30,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:30,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:30,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830453392] [2023-12-16 07:36:30,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:30,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:36:30,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:30,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:36:30,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:36:30,878 INFO L87 Difference]: Start difference. First operand 5426 states and 8097 transitions. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:31,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:31,478 INFO L93 Difference]: Finished difference Result 8716 states and 12222 transitions. [2023-12-16 07:36:31,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:36:31,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-16 07:36:31,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:31,498 INFO L225 Difference]: With dead ends: 8716 [2023-12-16 07:36:31,499 INFO L226 Difference]: Without dead ends: 5426 [2023-12-16 07:36:31,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 207 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 07:36:31,510 INFO L413 NwaCegarLoop]: 4187 mSDtfsCounter, 4401 mSDsluCounter, 8284 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4417 SdHoareTripleChecker+Valid, 12471 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:31,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4417 Valid, 12471 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:36:31,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5426 states. [2023-12-16 07:36:31,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5426 to 5426. [2023-12-16 07:36:31,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5426 states, 5224 states have (on average 1.5047856049004593) internal successors, (7861), 5230 states have internal predecessors, (7861), 110 states have call successors, (110), 88 states have call predecessors, (110), 90 states have return successors, (112), 108 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-16 07:36:31,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5426 states to 5426 states and 8083 transitions. [2023-12-16 07:36:31,733 INFO L78 Accepts]: Start accepts. Automaton has 5426 states and 8083 transitions. Word has length 211 [2023-12-16 07:36:31,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:31,733 INFO L495 AbstractCegarLoop]: Abstraction has 5426 states and 8083 transitions. [2023-12-16 07:36:31,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:31,733 INFO L276 IsEmpty]: Start isEmpty. Operand 5426 states and 8083 transitions. [2023-12-16 07:36:31,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-16 07:36:31,735 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:31,736 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:31,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-16 07:36:31,940 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 07:36:31,941 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:31,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:31,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1485112816, now seen corresponding path program 1 times [2023-12-16 07:36:31,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:31,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92922676] [2023-12-16 07:36:31,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:31,942 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 07:36:31,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:31,943 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 07:36:31,972 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 07:36:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:32,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:36:32,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:32,213 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-16 07:36:32,213 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:32,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:32,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92922676] [2023-12-16 07:36:32,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92922676] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:32,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:32,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:32,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258159949] [2023-12-16 07:36:32,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:32,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:36:32,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:32,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:36:32,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:36:32,215 INFO L87 Difference]: Start difference. First operand 5426 states and 8083 transitions. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:32,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:32,975 INFO L93 Difference]: Finished difference Result 9070 states and 12643 transitions. [2023-12-16 07:36:32,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:36:32,975 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-16 07:36:32,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:32,982 INFO L225 Difference]: With dead ends: 9070 [2023-12-16 07:36:32,983 INFO L226 Difference]: Without dead ends: 5780 [2023-12-16 07:36:32,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 207 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 07:36:32,988 INFO L413 NwaCegarLoop]: 4186 mSDtfsCounter, 4530 mSDsluCounter, 8280 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4546 SdHoareTripleChecker+Valid, 12466 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:32,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4546 Valid, 12466 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:36:32,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5780 states. [2023-12-16 07:36:33,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5780 to 5660. [2023-12-16 07:36:33,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5660 states, 5446 states have (on average 1.4849430774880645) internal successors, (8087), 5452 states have internal predecessors, (8087), 114 states have call successors, (114), 96 states have call predecessors, (114), 98 states have return successors, (116), 112 states have call predecessors, (116), 114 states have call successors, (116) [2023-12-16 07:36:33,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5660 states to 5660 states and 8317 transitions. [2023-12-16 07:36:33,130 INFO L78 Accepts]: Start accepts. Automaton has 5660 states and 8317 transitions. Word has length 211 [2023-12-16 07:36:33,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:33,130 INFO L495 AbstractCegarLoop]: Abstraction has 5660 states and 8317 transitions. [2023-12-16 07:36:33,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:33,130 INFO L276 IsEmpty]: Start isEmpty. Operand 5660 states and 8317 transitions. [2023-12-16 07:36:33,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-16 07:36:33,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:33,132 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:33,140 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 07:36:33,337 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 07:36:33,338 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:33,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:33,338 INFO L85 PathProgramCache]: Analyzing trace with hash 667994002, now seen corresponding path program 1 times [2023-12-16 07:36:33,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:33,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163176231] [2023-12-16 07:36:33,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:33,339 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 07:36:33,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:33,340 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 07:36:33,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-16 07:36:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:33,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:36:33,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:33,715 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-16 07:36:33,715 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:33,715 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:33,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163176231] [2023-12-16 07:36:33,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163176231] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:33,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:33,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:33,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451039789] [2023-12-16 07:36:33,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:33,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:36:33,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:33,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:36:33,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:36:33,717 INFO L87 Difference]: Start difference. First operand 5660 states and 8317 transitions. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:34,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:34,606 INFO L93 Difference]: Finished difference Result 9398 states and 12965 transitions. [2023-12-16 07:36:34,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:36:34,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-16 07:36:34,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:34,621 INFO L225 Difference]: With dead ends: 9398 [2023-12-16 07:36:34,621 INFO L226 Difference]: Without dead ends: 5874 [2023-12-16 07:36:34,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 207 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 07:36:34,633 INFO L413 NwaCegarLoop]: 4183 mSDtfsCounter, 4456 mSDsluCounter, 8276 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4472 SdHoareTripleChecker+Valid, 12459 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:34,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4472 Valid, 12459 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:36:34,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5874 states. [2023-12-16 07:36:34,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5874 to 5834. [2023-12-16 07:36:34,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5834 states, 5616 states have (on average 1.462428774928775) internal successors, (8213), 5622 states have internal predecessors, (8213), 114 states have call successors, (114), 100 states have call predecessors, (114), 102 states have return successors, (116), 112 states have call predecessors, (116), 114 states have call successors, (116) [2023-12-16 07:36:34,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5834 states to 5834 states and 8443 transitions. [2023-12-16 07:36:34,809 INFO L78 Accepts]: Start accepts. Automaton has 5834 states and 8443 transitions. Word has length 211 [2023-12-16 07:36:34,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:34,809 INFO L495 AbstractCegarLoop]: Abstraction has 5834 states and 8443 transitions. [2023-12-16 07:36:34,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:34,810 INFO L276 IsEmpty]: Start isEmpty. Operand 5834 states and 8443 transitions. [2023-12-16 07:36:34,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-16 07:36:34,812 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:34,812 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:34,819 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 07:36:35,016 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 07:36:35,017 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:35,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:35,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1699034900, now seen corresponding path program 1 times [2023-12-16 07:36:35,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:35,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347372707] [2023-12-16 07:36:35,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:35,019 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:36:35,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:35,020 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 07:36:35,051 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 07:36:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:35,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:36:35,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:35,377 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-16 07:36:35,377 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:35,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:35,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347372707] [2023-12-16 07:36:35,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347372707] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:35,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:35,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:35,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592019771] [2023-12-16 07:36:35,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:35,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:36:35,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:35,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:36:35,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:36:35,379 INFO L87 Difference]: Start difference. First operand 5834 states and 8443 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:36:35,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:35,965 INFO L93 Difference]: Finished difference Result 13120 states and 17223 transitions. [2023-12-16 07:36:35,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:36:35,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 211 [2023-12-16 07:36:35,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:36,009 INFO L225 Difference]: With dead ends: 13120 [2023-12-16 07:36:36,010 INFO L226 Difference]: Without dead ends: 9424 [2023-12-16 07:36:36,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 209 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 07:36:36,033 INFO L413 NwaCegarLoop]: 4388 mSDtfsCounter, 4459 mSDsluCounter, 4535 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4463 SdHoareTripleChecker+Valid, 8923 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:36,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4463 Valid, 8923 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:36:36,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9424 states. [2023-12-16 07:36:36,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9424 to 9422. [2023-12-16 07:36:36,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9422 states, 8997 states have (on average 1.365455151717239) internal successors, (12285), 9012 states have internal predecessors, (12285), 219 states have call successors, (219), 192 states have call predecessors, (219), 204 states have return successors, (243), 219 states have call predecessors, (243), 219 states have call successors, (243) [2023-12-16 07:36:36,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9422 states to 9422 states and 12747 transitions. [2023-12-16 07:36:36,479 INFO L78 Accepts]: Start accepts. Automaton has 9422 states and 12747 transitions. Word has length 211 [2023-12-16 07:36:36,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:36,479 INFO L495 AbstractCegarLoop]: Abstraction has 9422 states and 12747 transitions. [2023-12-16 07:36:36,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:36:36,479 INFO L276 IsEmpty]: Start isEmpty. Operand 9422 states and 12747 transitions. [2023-12-16 07:36:36,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-16 07:36:36,497 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:36,497 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:36,524 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 07:36:36,706 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 07:36:36,706 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:36,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:36,707 INFO L85 PathProgramCache]: Analyzing trace with hash 831107538, now seen corresponding path program 1 times [2023-12-16 07:36:36,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:36,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1551624962] [2023-12-16 07:36:36,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:36,707 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 07:36:36,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:36,715 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 07:36:36,752 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 07:36:36,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:36,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:36:36,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:36,917 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-12-16 07:36:36,917 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:36,918 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:36,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1551624962] [2023-12-16 07:36:36,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1551624962] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:36,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:36,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:36:36,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513376665] [2023-12-16 07:36:36,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:36,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:36:36,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:36,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:36:36,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:36:36,919 INFO L87 Difference]: Start difference. First operand 9422 states and 12747 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:37,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:37,200 INFO L93 Difference]: Finished difference Result 16694 states and 21484 transitions. [2023-12-16 07:36:37,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:36:37,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-16 07:36:37,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:37,212 INFO L225 Difference]: With dead ends: 16694 [2023-12-16 07:36:37,213 INFO L226 Difference]: Without dead ends: 9410 [2023-12-16 07:36:37,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 209 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 07:36:37,221 INFO L413 NwaCegarLoop]: 4310 mSDtfsCounter, 382 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 8267 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:37,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 8267 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:36:37,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9410 states. [2023-12-16 07:36:37,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9410 to 9410. [2023-12-16 07:36:37,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9410 states, 8988 states have (on average 1.3649310191366266) internal successors, (12268), 9002 states have internal predecessors, (12268), 216 states have call successors, (216), 192 states have call predecessors, (216), 204 states have return successors, (240), 216 states have call predecessors, (240), 216 states have call successors, (240) [2023-12-16 07:36:37,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9410 states to 9410 states and 12724 transitions. [2023-12-16 07:36:37,693 INFO L78 Accepts]: Start accepts. Automaton has 9410 states and 12724 transitions. Word has length 211 [2023-12-16 07:36:37,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:37,693 INFO L495 AbstractCegarLoop]: Abstraction has 9410 states and 12724 transitions. [2023-12-16 07:36:37,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:37,693 INFO L276 IsEmpty]: Start isEmpty. Operand 9410 states and 12724 transitions. [2023-12-16 07:36:37,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-12-16 07:36:37,698 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:37,699 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:37,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2023-12-16 07:36:37,904 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 07:36:37,904 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:37,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:37,905 INFO L85 PathProgramCache]: Analyzing trace with hash 690941615, now seen corresponding path program 1 times [2023-12-16 07:36:37,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:37,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944220189] [2023-12-16 07:36:37,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:37,905 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:36:37,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:37,906 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 07:36:37,924 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 (35)] Waiting until timeout for monitored process [2023-12-16 07:36:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:38,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:36:38,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:38,335 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-16 07:36:38,335 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:38,335 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:38,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944220189] [2023-12-16 07:36:38,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944220189] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:38,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:38,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:38,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800022385] [2023-12-16 07:36:38,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:38,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:36:38,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:38,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:36:38,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:36:38,337 INFO L87 Difference]: Start difference. First operand 9410 states and 12724 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:36:39,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:39,149 INFO L93 Difference]: Finished difference Result 23533 states and 29690 transitions. [2023-12-16 07:36:39,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:36:39,150 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 213 [2023-12-16 07:36:39,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:39,178 INFO L225 Difference]: With dead ends: 23533 [2023-12-16 07:36:39,178 INFO L226 Difference]: Without dead ends: 16261 [2023-12-16 07:36:39,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 211 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 07:36:39,193 INFO L413 NwaCegarLoop]: 4371 mSDtfsCounter, 4454 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4459 SdHoareTripleChecker+Valid, 8888 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:39,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4459 Valid, 8888 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:36:39,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16261 states. [2023-12-16 07:36:39,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16261 to 16259. [2023-12-16 07:36:39,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16259 states, 15442 states have (on average 1.2971117730863877) internal successors, (20030), 15473 states have internal predecessors, (20030), 415 states have call successors, (415), 368 states have call predecessors, (415), 400 states have return successors, (483), 419 states have call predecessors, (483), 415 states have call successors, (483) [2023-12-16 07:36:39,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16259 states to 16259 states and 20928 transitions. [2023-12-16 07:36:39,897 INFO L78 Accepts]: Start accepts. Automaton has 16259 states and 20928 transitions. Word has length 213 [2023-12-16 07:36:39,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:39,898 INFO L495 AbstractCegarLoop]: Abstraction has 16259 states and 20928 transitions. [2023-12-16 07:36:39,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:36:39,898 INFO L276 IsEmpty]: Start isEmpty. Operand 16259 states and 20928 transitions. [2023-12-16 07:36:39,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-12-16 07:36:39,904 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:39,904 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:39,909 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 07:36:40,104 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 07:36:40,105 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:40,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:40,105 INFO L85 PathProgramCache]: Analyzing trace with hash -445002831, now seen corresponding path program 1 times [2023-12-16 07:36:40,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:40,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [470444265] [2023-12-16 07:36:40,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:40,106 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 07:36:40,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:40,107 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 07:36:40,136 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 07:36:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:40,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:36:40,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:40,374 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-12-16 07:36:40,374 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:40,374 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:40,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [470444265] [2023-12-16 07:36:40,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [470444265] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:40,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:40,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:36:40,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885316351] [2023-12-16 07:36:40,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:40,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:36:40,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:40,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:36:40,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:36:40,376 INFO L87 Difference]: Start difference. First operand 16259 states and 20928 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:40,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:40,940 INFO L93 Difference]: Finished difference Result 30369 states and 37849 transitions. [2023-12-16 07:36:40,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:36:40,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 213 [2023-12-16 07:36:40,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:40,964 INFO L225 Difference]: With dead ends: 30369 [2023-12-16 07:36:40,964 INFO L226 Difference]: Without dead ends: 16248 [2023-12-16 07:36:40,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 211 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 07:36:40,999 INFO L413 NwaCegarLoop]: 4309 mSDtfsCounter, 380 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 8266 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:40,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 8266 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:36:41,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16248 states. [2023-12-16 07:36:41,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16248 to 16248. [2023-12-16 07:36:41,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16248 states, 15434 states have (on average 1.2968122327329272) internal successors, (20015), 15464 states have internal predecessors, (20015), 412 states have call successors, (412), 368 states have call predecessors, (412), 400 states have return successors, (480), 416 states have call predecessors, (480), 412 states have call successors, (480) [2023-12-16 07:36:42,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16248 states to 16248 states and 20907 transitions. [2023-12-16 07:36:42,113 INFO L78 Accepts]: Start accepts. Automaton has 16248 states and 20907 transitions. Word has length 213 [2023-12-16 07:36:42,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:42,114 INFO L495 AbstractCegarLoop]: Abstraction has 16248 states and 20907 transitions. [2023-12-16 07:36:42,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:42,114 INFO L276 IsEmpty]: Start isEmpty. Operand 16248 states and 20907 transitions. [2023-12-16 07:36:42,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-12-16 07:36:42,121 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:42,121 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:42,128 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 07:36:42,328 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 07:36:42,329 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:42,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:42,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1909945300, now seen corresponding path program 1 times [2023-12-16 07:36:42,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:42,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365464168] [2023-12-16 07:36:42,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:42,330 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 07:36:42,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:42,331 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 07:36:42,363 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 (37)] Waiting until timeout for monitored process [2023-12-16 07:36:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:42,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:36:42,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:42,713 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-16 07:36:42,714 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:42,714 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:42,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365464168] [2023-12-16 07:36:42,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [365464168] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:42,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:42,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:42,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120994994] [2023-12-16 07:36:42,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:42,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:36:42,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:42,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:36:42,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:36:42,716 INFO L87 Difference]: Start difference. First operand 16248 states and 20907 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:36:44,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:44,183 INFO L93 Difference]: Finished difference Result 43620 states and 53725 transitions. [2023-12-16 07:36:44,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:36:44,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 215 [2023-12-16 07:36:44,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:44,229 INFO L225 Difference]: With dead ends: 43620 [2023-12-16 07:36:44,229 INFO L226 Difference]: Without dead ends: 29510 [2023-12-16 07:36:44,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 213 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 07:36:44,249 INFO L413 NwaCegarLoop]: 4221 mSDtfsCounter, 4467 mSDsluCounter, 4386 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4473 SdHoareTripleChecker+Valid, 8607 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:44,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4473 Valid, 8607 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:36:44,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29510 states. [2023-12-16 07:36:45,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29510 to 29508. [2023-12-16 07:36:45,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29508 states, 27934 states have (on average 1.2540631488508627) internal successors, (35031), 28000 states have internal predecessors, (35031), 788 states have call successors, (788), 704 states have call predecessors, (788), 784 states have return successors, (952), 804 states have call predecessors, (952), 788 states have call successors, (952) [2023-12-16 07:36:45,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29508 states to 29508 states and 36771 transitions. [2023-12-16 07:36:45,547 INFO L78 Accepts]: Start accepts. Automaton has 29508 states and 36771 transitions. Word has length 215 [2023-12-16 07:36:45,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:45,547 INFO L495 AbstractCegarLoop]: Abstraction has 29508 states and 36771 transitions. [2023-12-16 07:36:45,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:36:45,548 INFO L276 IsEmpty]: Start isEmpty. Operand 29508 states and 36771 transitions. [2023-12-16 07:36:45,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-16 07:36:45,560 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:45,560 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:45,566 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 (37)] Forceful destruction successful, exit code 0 [2023-12-16 07:36:45,761 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 07:36:45,761 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:45,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:45,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1517668911, now seen corresponding path program 1 times [2023-12-16 07:36:45,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:45,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324603617] [2023-12-16 07:36:45,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:45,762 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 07:36:45,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:45,763 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:36:45,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-16 07:36:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:45,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:36:45,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:46,077 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-16 07:36:46,077 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:46,078 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:46,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324603617] [2023-12-16 07:36:46,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324603617] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:46,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:46,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:46,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766974016] [2023-12-16 07:36:46,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:46,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:36:46,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:46,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:36:46,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:36:46,079 INFO L87 Difference]: Start difference. First operand 29508 states and 36771 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:36:48,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:48,651 INFO L93 Difference]: Finished difference Result 93629 states and 113255 transitions. [2023-12-16 07:36:48,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:36:48,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 217 [2023-12-16 07:36:48,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:49,014 INFO L225 Difference]: With dead ends: 93629 [2023-12-16 07:36:49,014 INFO L226 Difference]: Without dead ends: 66259 [2023-12-16 07:36:49,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 215 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 07:36:49,043 INFO L413 NwaCegarLoop]: 4363 mSDtfsCounter, 4454 mSDsluCounter, 4493 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4460 SdHoareTripleChecker+Valid, 8856 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:49,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4460 Valid, 8856 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:36:49,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66259 states. [2023-12-16 07:36:52,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66259 to 65041. [2023-12-16 07:36:52,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65041 states, 61448 states have (on average 1.220967321963286) internal successors, (75026), 61883 states have internal predecessors, (75026), 1511 states have call successors, (1511), 1344 states have call predecessors, (1511), 2080 states have return successors, (2444), 1815 states have call predecessors, (2444), 1511 states have call successors, (2444) [2023-12-16 07:36:52,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65041 states to 65041 states and 78981 transitions. [2023-12-16 07:36:52,301 INFO L78 Accepts]: Start accepts. Automaton has 65041 states and 78981 transitions. Word has length 217 [2023-12-16 07:36:52,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:52,301 INFO L495 AbstractCegarLoop]: Abstraction has 65041 states and 78981 transitions. [2023-12-16 07:36:52,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:36:52,301 INFO L276 IsEmpty]: Start isEmpty. Operand 65041 states and 78981 transitions. [2023-12-16 07:36:52,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-16 07:36:52,324 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:52,324 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:52,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2023-12-16 07:36:52,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:36:52,524 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:52,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:52,525 INFO L85 PathProgramCache]: Analyzing trace with hash 796749489, now seen corresponding path program 1 times [2023-12-16 07:36:52,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:52,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2033900315] [2023-12-16 07:36:52,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:52,525 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:36:52,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:52,533 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:36:52,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-16 07:36:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:52,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:36:52,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:52,680 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-12-16 07:36:52,681 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:52,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:52,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2033900315] [2023-12-16 07:36:52,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2033900315] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:52,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:52,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:36:52,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345564672] [2023-12-16 07:36:52,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:52,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:36:52,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:52,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:36:52,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:36:52,682 INFO L87 Difference]: Start difference. First operand 65041 states and 78981 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:55,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:55,377 INFO L93 Difference]: Finished difference Result 127936 states and 153960 transitions. [2023-12-16 07:36:55,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:36:55,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 217 [2023-12-16 07:36:55,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:55,490 INFO L225 Difference]: With dead ends: 127936 [2023-12-16 07:36:55,490 INFO L226 Difference]: Without dead ends: 65032 [2023-12-16 07:36:55,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 215 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 07:36:55,615 INFO L413 NwaCegarLoop]: 4308 mSDtfsCounter, 377 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 8265 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:55,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 8265 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:36:55,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65032 states. [2023-12-16 07:36:58,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65032 to 65032. [2023-12-16 07:36:58,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65032 states, 61442 states have (on average 1.220891247029719) internal successors, (75014), 61876 states have internal predecessors, (75014), 1508 states have call successors, (1508), 1344 states have call predecessors, (1508), 2080 states have return successors, (2440), 1812 states have call predecessors, (2440), 1508 states have call successors, (2440) [2023-12-16 07:36:58,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65032 states to 65032 states and 78962 transitions. [2023-12-16 07:36:58,473 INFO L78 Accepts]: Start accepts. Automaton has 65032 states and 78962 transitions. Word has length 217 [2023-12-16 07:36:58,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:58,473 INFO L495 AbstractCegarLoop]: Abstraction has 65032 states and 78962 transitions. [2023-12-16 07:36:58,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:36:58,473 INFO L276 IsEmpty]: Start isEmpty. Operand 65032 states and 78962 transitions. [2023-12-16 07:36:58,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-12-16 07:36:58,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:58,491 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:58,496 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 (39)] Forceful destruction successful, exit code 0 [2023-12-16 07:36:58,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 07:36:58,692 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:58,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:58,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1271908500, now seen corresponding path program 1 times [2023-12-16 07:36:58,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:58,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [935438849] [2023-12-16 07:36:58,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:58,693 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 07:36:58,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:58,694 INFO L229 MonitoredProcess]: Starting monitored process 40 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 07:36:58,725 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 (40)] Waiting until timeout for monitored process [2023-12-16 07:36:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:58,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:36:58,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:59,026 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-16 07:36:59,026 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:59,026 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:59,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [935438849] [2023-12-16 07:36:59,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [935438849] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:59,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:59,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:59,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603370039] [2023-12-16 07:36:59,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:59,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:36:59,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:59,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:36:59,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:36:59,028 INFO L87 Difference]: Start difference. First operand 65032 states and 78962 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Received shutdown request... [2023-12-16 07:37:03,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:37:03,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 217 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 07:37:03,330 INFO L413 NwaCegarLoop]: 4330 mSDtfsCounter, 4431 mSDsluCounter, 4464 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4437 SdHoareTripleChecker+Valid, 8794 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:03,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4437 Valid, 8794 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:37:03,335 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 07:37:03,343 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 (40)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:03,348 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 (40)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:37:03,348 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 07:37:03,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 07:37:03,542 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (65032states) and FLOYD_HOARE automaton (currently 5 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (151568 states constructed, input type IntersectNwa). [2023-12-16 07:37:03,545 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 07:37:03,547 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, 1, 1, 1] [2023-12-16 07:37:03,550 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 07:37:03,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:37:03 BoogieIcfgContainer [2023-12-16 07:37:03,552 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 07:37:03,556 INFO L158 Benchmark]: Toolchain (without parser) took 75543.78ms. Allocated memory was 234.9MB in the beginning and 6.5GB in the end (delta: 6.3GB). Free memory was 155.0MB in the beginning and 5.6GB in the end (delta: -5.4GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-16 07:37:03,558 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 182.5MB. Free memory is still 132.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 07:37:03,558 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2773.40ms. Allocated memory was 234.9MB in the beginning and 297.8MB in the end (delta: 62.9MB). Free memory was 154.7MB in the beginning and 170.2MB in the end (delta: -15.5MB). Peak memory consumption was 124.9MB. Max. memory is 8.0GB. [2023-12-16 07:37:03,558 INFO L158 Benchmark]: Boogie Procedure Inliner took 624.61ms. Allocated memory is still 297.8MB. Free memory was 170.2MB in the beginning and 157.6MB in the end (delta: 12.6MB). Peak memory consumption was 122.7MB. Max. memory is 8.0GB. [2023-12-16 07:37:03,558 INFO L158 Benchmark]: Boogie Preprocessor took 1185.55ms. Allocated memory was 297.8MB in the beginning and 602.9MB in the end (delta: 305.1MB). Free memory was 157.6MB in the beginning and 447.2MB in the end (delta: -289.6MB). Peak memory consumption was 72.4MB. Max. memory is 8.0GB. [2023-12-16 07:37:03,558 INFO L158 Benchmark]: RCFGBuilder took 9452.29ms. Allocated memory was 602.9MB in the beginning and 1.1GB in the end (delta: 512.8MB). Free memory was 447.2MB in the beginning and 302.1MB in the end (delta: 145.1MB). Peak memory consumption was 678.1MB. Max. memory is 8.0GB. [2023-12-16 07:37:03,558 INFO L158 Benchmark]: TraceAbstraction took 61489.23ms. Allocated memory was 1.1GB in the beginning and 6.5GB in the end (delta: 5.4GB). Free memory was 301.6MB in the beginning and 5.6GB in the end (delta: -5.3GB). Peak memory consumption was 746.6MB. Max. memory is 8.0GB. [2023-12-16 07:37:03,559 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 182.5MB. Free memory is still 132.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2773.40ms. Allocated memory was 234.9MB in the beginning and 297.8MB in the end (delta: 62.9MB). Free memory was 154.7MB in the beginning and 170.2MB in the end (delta: -15.5MB). Peak memory consumption was 124.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 624.61ms. Allocated memory is still 297.8MB. Free memory was 170.2MB in the beginning and 157.6MB in the end (delta: 12.6MB). Peak memory consumption was 122.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 1185.55ms. Allocated memory was 297.8MB in the beginning and 602.9MB in the end (delta: 305.1MB). Free memory was 157.6MB in the beginning and 447.2MB in the end (delta: -289.6MB). Peak memory consumption was 72.4MB. Max. memory is 8.0GB. * RCFGBuilder took 9452.29ms. Allocated memory was 602.9MB in the beginning and 1.1GB in the end (delta: 512.8MB). Free memory was 447.2MB in the beginning and 302.1MB in the end (delta: 145.1MB). Peak memory consumption was 678.1MB. Max. memory is 8.0GB. * TraceAbstraction took 61489.23ms. Allocated memory was 1.1GB in the beginning and 6.5GB in the end (delta: 5.4GB). Free memory was 301.6MB in the beginning and 5.6GB in the end (delta: -5.3GB). Peak memory consumption was 746.6MB. 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 NwaCegarLoop was constructing difference of abstraction (65032states) and FLOYD_HOARE automaton (currently 5 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (151568 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 10986]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 10986). Cancelled while NwaCegarLoop was constructing difference of abstraction (65032states) and FLOYD_HOARE automaton (currently 5 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (151568 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 2402 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 61.4s, OverallIterations: 39, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 28.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 119812 SdHoareTripleChecker+Valid, 11.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 119448 mSDsluCounter, 449379 SdHoareTripleChecker+Invalid, 8.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 282907 mSDsCounter, 937 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12217 IncrementalHoareTripleChecker+Invalid, 13154 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 937 mSolverCounterUnsat, 166472 mSDtfsCounter, 12217 mSolverCounterSat, 0.9s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6730 GetRequests, 6610 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65041occurred in iteration=37, InterpolantAutomatonStates: 165, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 14.3s AutomataMinimizationTime, 38 MinimizatonAttempts, 3481 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.4s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 6737 NumberOfCodeBlocks, 6737 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 6698 ConstructedInterpolants, 0 QuantifiedInterpolants, 10916 SizeOfPredicates, 9 NumberOfNonLiveVariables, 17026 ConjunctsInSsa, 172 ConjunctsInUnsatCore, 39 InterpolantComputations, 39 PerfectInterpolantSequences, 1260/1260 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