/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_label45+token_ring.06.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 21:58:54,005 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 21:58:54,040 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-21 21:58:54,043 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 21:58:54,044 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 21:58:54,056 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 21:58:54,057 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 21:58:54,057 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 21:58:54,057 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 21:58:54,058 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 21:58:54,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 21:58:54,058 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 21:58:54,058 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 21:58:54,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 21:58:54,059 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 21:58:54,059 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 21:58:54,059 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 21:58:54,060 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 21:58:54,060 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 21:58:54,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 21:58:54,060 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 21:58:54,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 21:58:54,061 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 21:58:54,061 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-21 21:58:54,062 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-21 21:58:54,062 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 21:58:54,062 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-21 21:58:54,062 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 21:58:54,062 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 21:58:54,063 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 21:58:54,063 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 21:58:54,063 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 21:58:54,063 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 21:58:54,063 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 21:58:54,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 21:58:54,064 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 21:58:54,064 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 21:58:54,064 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 21:58:54,064 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-21 21:58:54,065 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-21 21:58:54,065 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 21:58:54,066 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 21:58:54,066 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 21:58:54,067 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 21:58:54,067 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 21:58:54,067 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-21 21:58:54,067 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-21 21:58:54,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 21:58:54,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 21:58:54,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 21:58:54,244 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 21:58:54,244 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 21:58:54,245 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.06.cil-1.c [2023-12-21 21:58:55,352 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 21:58:55,995 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 21:58:55,996 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.06.cil-1.c [2023-12-21 21:58:56,041 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e2e46af7/f3c1e34e2aa947debfbe93b256f4baf1/FLAGa239f5e09 [2023-12-21 21:58:56,055 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e2e46af7/f3c1e34e2aa947debfbe93b256f4baf1 [2023-12-21 21:58:56,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 21:58:56,059 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 21:58:56,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 21:58:56,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 21:58:56,064 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 21:58:56,064 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:58:56" (1/1) ... [2023-12-21 21:58:56,065 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f98ad04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:56, skipping insertion in model container [2023-12-21 21:58:56,065 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:58:56" (1/1) ... [2023-12-21 21:58:56,257 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 21:58:57,522 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_label45+token_ring.06.cil-1.c[380323,380336] [2023-12-21 21:58:57,545 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_label45+token_ring.06.cil-1.c[383339,383352] [2023-12-21 21:58:57,674 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 21:58:57,685 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 21:58:58,272 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_label45+token_ring.06.cil-1.c[380323,380336] [2023-12-21 21:58:58,284 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_label45+token_ring.06.cil-1.c[383339,383352] [2023-12-21 21:58:58,300 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 21:58:58,345 INFO L206 MainTranslator]: Completed translation [2023-12-21 21:58:58,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:58 WrapperNode [2023-12-21 21:58:58,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 21:58:58,350 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 21:58:58,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 21:58:58,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 21:58:58,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:58" (1/1) ... [2023-12-21 21:58:58,446 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:58" (1/1) ... [2023-12-21 21:58:58,804 INFO L138 Inliner]: procedures = 57, calls = 60, calls flagged for inlining = 33, calls inlined = 33, statements flattened = 12848 [2023-12-21 21:58:58,805 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 21:58:58,805 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 21:58:58,805 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 21:58:58,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 21:58:58,813 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:58" (1/1) ... [2023-12-21 21:58:58,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:58" (1/1) ... [2023-12-21 21:58:58,847 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:58" (1/1) ... [2023-12-21 21:58:58,961 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-21 21:58:58,962 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:58" (1/1) ... [2023-12-21 21:58:58,962 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:58" (1/1) ... [2023-12-21 21:58:59,030 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:58" (1/1) ... [2023-12-21 21:58:59,064 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:58" (1/1) ... [2023-12-21 21:58:59,090 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:58" (1/1) ... [2023-12-21 21:58:59,110 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:58" (1/1) ... [2023-12-21 21:58:59,157 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 21:58:59,158 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 21:58:59,158 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 21:58:59,158 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 21:58:59,159 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:58" (1/1) ... [2023-12-21 21:58:59,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 21:58:59,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 21:58:59,227 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-21 21:58:59,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-21 21:58:59,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 21:58:59,268 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-21 21:58:59,269 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-21 21:58:59,269 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-21 21:58:59,269 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-21 21:58:59,269 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-21 21:58:59,269 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-21 21:58:59,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-21 21:58:59,269 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-21 21:58:59,269 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-21 21:58:59,269 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-21 21:58:59,269 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-21 21:58:59,269 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-21 21:58:59,269 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-21 21:58:59,270 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-21 21:58:59,270 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-21 21:58:59,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 21:58:59,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 21:58:59,351 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 21:58:59,352 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 21:59:06,456 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 21:59:06,536 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 21:59:06,536 INFO L309 CfgBuilder]: Removed 10 assume(true) statements. [2023-12-21 21:59:06,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:59:06 BoogieIcfgContainer [2023-12-21 21:59:06,539 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 21:59:06,541 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 21:59:06,541 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 21:59:06,543 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 21:59:06,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 09:58:56" (1/3) ... [2023-12-21 21:59:06,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@435d4820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:59:06, skipping insertion in model container [2023-12-21 21:59:06,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:58" (2/3) ... [2023-12-21 21:59:06,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@435d4820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:59:06, skipping insertion in model container [2023-12-21 21:59:06,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:59:06" (3/3) ... [2023-12-21 21:59:06,546 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.06.cil-1.c [2023-12-21 21:59:06,557 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 21:59:06,558 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-21 21:59:06,622 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 21:59:06,626 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;@446705c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 21:59:06,627 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-21 21:59:06,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 2341 states, 2309 states have (on average 1.8817669987007362) internal successors, (4345), 2314 states have internal predecessors, (4345), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-21 21:59:06,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 21:59:06,657 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:06,657 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] [2023-12-21 21:59:06,658 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:06,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:06,663 INFO L85 PathProgramCache]: Analyzing trace with hash 633022234, now seen corresponding path program 1 times [2023-12-21 21:59:06,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:06,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423571684] [2023-12-21 21:59:06,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:06,676 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:06,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:06,678 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:06,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-21 21:59:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:06,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:59:06,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:06,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:59:06,903 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:06,903 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:06,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423571684] [2023-12-21 21:59:06,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423571684] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:06,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:06,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:59:06,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424589888] [2023-12-21 21:59:06,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:06,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:59:06,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:06,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:59:06,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:59:06,946 INFO L87 Difference]: Start difference. First operand has 2341 states, 2309 states have (on average 1.8817669987007362) internal successors, (4345), 2314 states have internal predecessors, (4345), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:07,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:07,103 INFO L93 Difference]: Finished difference Result 4673 states and 8761 transitions. [2023-12-21 21:59:07,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:59:07,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-21 21:59:07,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:07,121 INFO L225 Difference]: With dead ends: 4673 [2023-12-21 21:59:07,121 INFO L226 Difference]: Without dead ends: 2336 [2023-12-21 21:59:07,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:59:07,132 INFO L413 NwaCegarLoop]: 4275 mSDtfsCounter, 334 mSDsluCounter, 3959 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 8234 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:07,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 8234 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:59:07,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2023-12-21 21:59:07,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2336. [2023-12-21 21:59:07,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2306 states have (on average 1.8460537727666955) internal successors, (4257), 2309 states have internal predecessors, (4257), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 21:59:07,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 4299 transitions. [2023-12-21 21:59:07,220 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 4299 transitions. Word has length 102 [2023-12-21 21:59:07,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:07,221 INFO L495 AbstractCegarLoop]: Abstraction has 2336 states and 4299 transitions. [2023-12-21 21:59:07,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:07,221 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 4299 transitions. [2023-12-21 21:59:07,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 21:59:07,223 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:07,223 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] [2023-12-21 21:59:07,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-21 21:59:07,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:07,430 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:07,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:07,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1721363048, now seen corresponding path program 1 times [2023-12-21 21:59:07,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:07,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [422933591] [2023-12-21 21:59:07,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:07,431 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:07,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:07,432 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:07,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-21 21:59:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:07,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:59:07,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:07,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:59:07,617 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:07,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:07,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [422933591] [2023-12-21 21:59:07,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [422933591] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:07,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:07,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:07,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623425353] [2023-12-21 21:59:07,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:07,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 21:59:07,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:07,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 21:59:07,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:59:07,621 INFO L87 Difference]: Start difference. First operand 2336 states and 4299 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:07,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:07,968 INFO L93 Difference]: Finished difference Result 2539 states and 4624 transitions. [2023-12-21 21:59:07,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 21:59:07,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-21 21:59:07,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:07,976 INFO L225 Difference]: With dead ends: 2539 [2023-12-21 21:59:07,976 INFO L226 Difference]: Without dead ends: 2336 [2023-12-21 21:59:07,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 21:59:07,979 INFO L413 NwaCegarLoop]: 4171 mSDtfsCounter, 4400 mSDsluCounter, 8246 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4414 SdHoareTripleChecker+Valid, 12417 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:07,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4414 Valid, 12417 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 21:59:07,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2023-12-21 21:59:08,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2336. [2023-12-21 21:59:08,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2306 states have (on average 1.844752818733738) internal successors, (4254), 2309 states have internal predecessors, (4254), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 21:59:08,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 4296 transitions. [2023-12-21 21:59:08,016 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 4296 transitions. Word has length 102 [2023-12-21 21:59:08,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:08,016 INFO L495 AbstractCegarLoop]: Abstraction has 2336 states and 4296 transitions. [2023-12-21 21:59:08,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:08,016 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 4296 transitions. [2023-12-21 21:59:08,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 21:59:08,017 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:08,017 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] [2023-12-21 21:59:08,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:08,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:08,221 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:08,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:08,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1316629336, now seen corresponding path program 1 times [2023-12-21 21:59:08,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:08,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600938406] [2023-12-21 21:59:08,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:08,223 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:08,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:08,226 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:08,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-21 21:59:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:08,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:59:08,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:08,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:59:08,378 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:08,378 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:08,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1600938406] [2023-12-21 21:59:08,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1600938406] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:08,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:08,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:08,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141794063] [2023-12-21 21:59:08,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:08,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 21:59:08,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:08,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 21:59:08,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:59:08,380 INFO L87 Difference]: Start difference. First operand 2336 states and 4296 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:08,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:08,682 INFO L93 Difference]: Finished difference Result 2539 states and 4618 transitions. [2023-12-21 21:59:08,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 21:59:08,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-21 21:59:08,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:08,689 INFO L225 Difference]: With dead ends: 2539 [2023-12-21 21:59:08,690 INFO L226 Difference]: Without dead ends: 2336 [2023-12-21 21:59:08,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 21:59:08,692 INFO L413 NwaCegarLoop]: 4168 mSDtfsCounter, 4394 mSDsluCounter, 8242 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4408 SdHoareTripleChecker+Valid, 12410 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:08,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4408 Valid, 12410 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 21:59:08,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2023-12-21 21:59:08,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2336. [2023-12-21 21:59:08,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2306 states have (on average 1.8434518647007805) internal successors, (4251), 2309 states have internal predecessors, (4251), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 21:59:08,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 4293 transitions. [2023-12-21 21:59:08,749 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 4293 transitions. Word has length 102 [2023-12-21 21:59:08,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:08,751 INFO L495 AbstractCegarLoop]: Abstraction has 2336 states and 4293 transitions. [2023-12-21 21:59:08,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:08,751 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 4293 transitions. [2023-12-21 21:59:08,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 21:59:08,755 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:08,755 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] [2023-12-21 21:59:08,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:08,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:08,959 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:08,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:08,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1101855142, now seen corresponding path program 1 times [2023-12-21 21:59:08,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:08,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1849064642] [2023-12-21 21:59:08,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:08,961 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:08,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:08,981 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:09,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-21 21:59:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:09,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:59:09,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:09,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:59:09,140 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:09,140 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:09,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1849064642] [2023-12-21 21:59:09,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1849064642] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:09,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:09,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:09,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287577952] [2023-12-21 21:59:09,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:09,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 21:59:09,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:09,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 21:59:09,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:59:09,142 INFO L87 Difference]: Start difference. First operand 2336 states and 4293 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:09,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:09,482 INFO L93 Difference]: Finished difference Result 2539 states and 4612 transitions. [2023-12-21 21:59:09,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 21:59:09,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-21 21:59:09,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:09,489 INFO L225 Difference]: With dead ends: 2539 [2023-12-21 21:59:09,489 INFO L226 Difference]: Without dead ends: 2336 [2023-12-21 21:59:09,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 21:59:09,491 INFO L413 NwaCegarLoop]: 4165 mSDtfsCounter, 4388 mSDsluCounter, 8238 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4402 SdHoareTripleChecker+Valid, 12403 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:09,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4402 Valid, 12403 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 21:59:09,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2023-12-21 21:59:09,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2336. [2023-12-21 21:59:09,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2306 states have (on average 1.842150910667823) internal successors, (4248), 2309 states have internal predecessors, (4248), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 21:59:09,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 4290 transitions. [2023-12-21 21:59:09,539 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 4290 transitions. Word has length 102 [2023-12-21 21:59:09,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:09,540 INFO L495 AbstractCegarLoop]: Abstraction has 2336 states and 4290 transitions. [2023-12-21 21:59:09,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:09,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 4290 transitions. [2023-12-21 21:59:09,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 21:59:09,541 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:09,541 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] [2023-12-21 21:59:09,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:09,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:09,750 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:09,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:09,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1594782694, now seen corresponding path program 1 times [2023-12-21 21:59:09,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:09,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059344943] [2023-12-21 21:59:09,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:09,751 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 [2023-12-21 21:59:09,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:09,752 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:09,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-21 21:59:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:09,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:59:09,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:09,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:59:09,884 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:09,884 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:09,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059344943] [2023-12-21 21:59:09,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059344943] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:09,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:09,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:09,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730272147] [2023-12-21 21:59:09,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:09,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 21:59:09,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:09,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 21:59:09,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:59:09,886 INFO L87 Difference]: Start difference. First operand 2336 states and 4290 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:10,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:10,233 INFO L93 Difference]: Finished difference Result 2539 states and 4606 transitions. [2023-12-21 21:59:10,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 21:59:10,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-21 21:59:10,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:10,247 INFO L225 Difference]: With dead ends: 2539 [2023-12-21 21:59:10,247 INFO L226 Difference]: Without dead ends: 2336 [2023-12-21 21:59:10,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 21:59:10,249 INFO L413 NwaCegarLoop]: 4162 mSDtfsCounter, 4382 mSDsluCounter, 8234 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4396 SdHoareTripleChecker+Valid, 12396 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:10,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4396 Valid, 12396 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 21:59:10,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2023-12-21 21:59:10,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2336. [2023-12-21 21:59:10,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2306 states have (on average 1.8408499566348655) internal successors, (4245), 2309 states have internal predecessors, (4245), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 21:59:10,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 4287 transitions. [2023-12-21 21:59:10,289 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 4287 transitions. Word has length 102 [2023-12-21 21:59:10,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:10,289 INFO L495 AbstractCegarLoop]: Abstraction has 2336 states and 4287 transitions. [2023-12-21 21:59:10,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:10,290 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 4287 transitions. [2023-12-21 21:59:10,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 21:59:10,290 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:10,291 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] [2023-12-21 21:59:10,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:10,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:10,497 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:10,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:10,497 INFO L85 PathProgramCache]: Analyzing trace with hash -779399590, now seen corresponding path program 1 times [2023-12-21 21:59:10,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:10,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631882982] [2023-12-21 21:59:10,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:10,499 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:10,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:10,500 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:10,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-21 21:59:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:10,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:59:10,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:10,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:59:10,747 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:10,747 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:10,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631882982] [2023-12-21 21:59:10,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1631882982] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:10,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:10,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:10,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065582804] [2023-12-21 21:59:10,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:10,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 21:59:10,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:10,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 21:59:10,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:59:10,749 INFO L87 Difference]: Start difference. First operand 2336 states and 4287 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:11,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:11,058 INFO L93 Difference]: Finished difference Result 2539 states and 4600 transitions. [2023-12-21 21:59:11,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 21:59:11,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-21 21:59:11,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:11,065 INFO L225 Difference]: With dead ends: 2539 [2023-12-21 21:59:11,065 INFO L226 Difference]: Without dead ends: 2336 [2023-12-21 21:59:11,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 21:59:11,068 INFO L413 NwaCegarLoop]: 4159 mSDtfsCounter, 4376 mSDsluCounter, 8230 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4390 SdHoareTripleChecker+Valid, 12389 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:11,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4390 Valid, 12389 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 21:59:11,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2023-12-21 21:59:11,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2336. [2023-12-21 21:59:11,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2306 states have (on average 1.8395490026019081) internal successors, (4242), 2309 states have internal predecessors, (4242), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 21:59:11,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 4284 transitions. [2023-12-21 21:59:11,105 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 4284 transitions. Word has length 102 [2023-12-21 21:59:11,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:11,105 INFO L495 AbstractCegarLoop]: Abstraction has 2336 states and 4284 transitions. [2023-12-21 21:59:11,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:11,105 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 4284 transitions. [2023-12-21 21:59:11,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 21:59:11,106 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:11,107 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] [2023-12-21 21:59:11,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:11,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:11,314 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:11,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:11,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1584380902, now seen corresponding path program 1 times [2023-12-21 21:59:11,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:11,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272701808] [2023-12-21 21:59:11,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:11,315 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:11,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:11,316 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:11,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-21 21:59:11,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:11,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:59:11,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:11,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:59:11,447 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:11,447 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:11,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272701808] [2023-12-21 21:59:11,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [272701808] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:11,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:11,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:11,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626797745] [2023-12-21 21:59:11,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:11,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 21:59:11,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:11,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 21:59:11,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:59:11,450 INFO L87 Difference]: Start difference. First operand 2336 states and 4284 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:11,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:11,736 INFO L93 Difference]: Finished difference Result 2539 states and 4594 transitions. [2023-12-21 21:59:11,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 21:59:11,737 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-21 21:59:11,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:11,743 INFO L225 Difference]: With dead ends: 2539 [2023-12-21 21:59:11,744 INFO L226 Difference]: Without dead ends: 2336 [2023-12-21 21:59:11,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 21:59:11,745 INFO L413 NwaCegarLoop]: 4156 mSDtfsCounter, 4370 mSDsluCounter, 8226 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4384 SdHoareTripleChecker+Valid, 12382 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:11,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4384 Valid, 12382 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 21:59:11,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2023-12-21 21:59:11,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2336. [2023-12-21 21:59:11,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2306 states have (on average 1.8382480485689505) internal successors, (4239), 2309 states have internal predecessors, (4239), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 21:59:11,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 4281 transitions. [2023-12-21 21:59:11,792 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 4281 transitions. Word has length 102 [2023-12-21 21:59:11,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:11,792 INFO L495 AbstractCegarLoop]: Abstraction has 2336 states and 4281 transitions. [2023-12-21 21:59:11,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:11,793 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 4281 transitions. [2023-12-21 21:59:11,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 21:59:11,793 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:11,793 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] [2023-12-21 21:59:11,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:11,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:11,998 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:11,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:11,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1714787930, now seen corresponding path program 1 times [2023-12-21 21:59:11,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:11,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [855599693] [2023-12-21 21:59:12,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:12,001 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:12,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:12,018 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:12,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-21 21:59:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:12,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:59:12,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:12,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:59:12,152 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:12,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:12,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [855599693] [2023-12-21 21:59:12,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [855599693] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:12,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:12,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:12,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143868830] [2023-12-21 21:59:12,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:12,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 21:59:12,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:12,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 21:59:12,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:59:12,154 INFO L87 Difference]: Start difference. First operand 2336 states and 4281 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:12,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:12,487 INFO L93 Difference]: Finished difference Result 2586 states and 4665 transitions. [2023-12-21 21:59:12,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 21:59:12,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-21 21:59:12,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:12,494 INFO L225 Difference]: With dead ends: 2586 [2023-12-21 21:59:12,495 INFO L226 Difference]: Without dead ends: 2383 [2023-12-21 21:59:12,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 21:59:12,497 INFO L413 NwaCegarLoop]: 4154 mSDtfsCounter, 4424 mSDsluCounter, 8222 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4438 SdHoareTripleChecker+Valid, 12376 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:12,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4438 Valid, 12376 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 21:59:12,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2023-12-21 21:59:12,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2383. [2023-12-21 21:59:12,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2383 states, 2350 states have (on average 1.8297872340425532) internal successors, (4300), 2353 states have internal predecessors, (4300), 23 states have call successors, (23), 9 states have call predecessors, (23), 8 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-21 21:59:12,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2383 states to 2383 states and 4344 transitions. [2023-12-21 21:59:12,537 INFO L78 Accepts]: Start accepts. Automaton has 2383 states and 4344 transitions. Word has length 102 [2023-12-21 21:59:12,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:12,538 INFO L495 AbstractCegarLoop]: Abstraction has 2383 states and 4344 transitions. [2023-12-21 21:59:12,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:12,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2383 states and 4344 transitions. [2023-12-21 21:59:12,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 21:59:12,538 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:12,539 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] [2023-12-21 21:59:12,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:12,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:12,743 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:12,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:12,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1850462939, now seen corresponding path program 1 times [2023-12-21 21:59:12,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:12,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2028633739] [2023-12-21 21:59:12,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:12,744 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:12,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:12,746 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:12,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-21 21:59:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:12,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:59:12,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:12,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:59:12,875 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:12,875 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:12,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2028633739] [2023-12-21 21:59:12,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2028633739] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:12,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:12,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:12,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423933696] [2023-12-21 21:59:12,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:12,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 21:59:12,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:12,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 21:59:12,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:59:12,876 INFO L87 Difference]: Start difference. First operand 2383 states and 4344 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:13,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:13,213 INFO L93 Difference]: Finished difference Result 2680 states and 4791 transitions. [2023-12-21 21:59:13,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 21:59:13,213 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-21 21:59:13,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:13,220 INFO L225 Difference]: With dead ends: 2680 [2023-12-21 21:59:13,220 INFO L226 Difference]: Without dead ends: 2430 [2023-12-21 21:59:13,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 21:59:13,221 INFO L413 NwaCegarLoop]: 4151 mSDtfsCounter, 4416 mSDsluCounter, 8218 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4430 SdHoareTripleChecker+Valid, 12369 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:13,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4430 Valid, 12369 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 21:59:13,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2430 states. [2023-12-21 21:59:13,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2430 to 2430. [2023-12-21 21:59:13,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2430 states, 2394 states have (on average 1.8208020050125313) internal successors, (4359), 2397 states have internal predecessors, (4359), 24 states have call successors, (24), 11 states have call predecessors, (24), 10 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-21 21:59:13,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2430 states to 2430 states and 4405 transitions. [2023-12-21 21:59:13,258 INFO L78 Accepts]: Start accepts. Automaton has 2430 states and 4405 transitions. Word has length 102 [2023-12-21 21:59:13,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:13,259 INFO L495 AbstractCegarLoop]: Abstraction has 2430 states and 4405 transitions. [2023-12-21 21:59:13,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:13,259 INFO L276 IsEmpty]: Start isEmpty. Operand 2430 states and 4405 transitions. [2023-12-21 21:59:13,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 21:59:13,259 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:13,260 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] [2023-12-21 21:59:13,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:13,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:13,477 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:13,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:13,477 INFO L85 PathProgramCache]: Analyzing trace with hash -147272548, now seen corresponding path program 1 times [2023-12-21 21:59:13,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:13,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1539932234] [2023-12-21 21:59:13,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:13,478 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:13,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:13,479 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:13,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-21 21:59:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:13,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:59:13,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:13,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:59:13,609 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:13,609 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:13,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1539932234] [2023-12-21 21:59:13,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1539932234] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:13,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:13,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:13,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875776429] [2023-12-21 21:59:13,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:13,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 21:59:13,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:13,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 21:59:13,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:59:13,611 INFO L87 Difference]: Start difference. First operand 2430 states and 4405 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:13,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:13,933 INFO L93 Difference]: Finished difference Result 2774 states and 4913 transitions. [2023-12-21 21:59:13,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 21:59:13,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-21 21:59:13,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:13,940 INFO L225 Difference]: With dead ends: 2774 [2023-12-21 21:59:13,940 INFO L226 Difference]: Without dead ends: 2477 [2023-12-21 21:59:13,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 21:59:13,941 INFO L413 NwaCegarLoop]: 4148 mSDtfsCounter, 4410 mSDsluCounter, 8214 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4424 SdHoareTripleChecker+Valid, 12362 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:13,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4424 Valid, 12362 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 21:59:13,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2477 states. [2023-12-21 21:59:13,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2477 to 2477. [2023-12-21 21:59:13,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 2438 states have (on average 1.8113207547169812) internal successors, (4416), 2441 states have internal predecessors, (4416), 25 states have call successors, (25), 13 states have call predecessors, (25), 12 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-21 21:59:13,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 4464 transitions. [2023-12-21 21:59:13,977 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 4464 transitions. Word has length 102 [2023-12-21 21:59:13,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:13,977 INFO L495 AbstractCegarLoop]: Abstraction has 2477 states and 4464 transitions. [2023-12-21 21:59:13,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:13,978 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 4464 transitions. [2023-12-21 21:59:13,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 21:59:13,978 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:13,978 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] [2023-12-21 21:59:14,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:14,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:14,182 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:14,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:14,183 INFO L85 PathProgramCache]: Analyzing trace with hash -17405699, now seen corresponding path program 1 times [2023-12-21 21:59:14,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:14,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1860579194] [2023-12-21 21:59:14,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:14,183 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:14,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:14,192 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:14,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-21 21:59:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:14,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:59:14,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:14,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:59:14,346 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:14,346 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:14,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1860579194] [2023-12-21 21:59:14,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1860579194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:14,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:14,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:14,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589089881] [2023-12-21 21:59:14,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:14,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 21:59:14,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:14,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 21:59:14,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:59:14,348 INFO L87 Difference]: Start difference. First operand 2477 states and 4464 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:14,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:14,693 INFO L93 Difference]: Finished difference Result 2868 states and 5031 transitions. [2023-12-21 21:59:14,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 21:59:14,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-21 21:59:14,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:14,784 INFO L225 Difference]: With dead ends: 2868 [2023-12-21 21:59:14,784 INFO L226 Difference]: Without dead ends: 2524 [2023-12-21 21:59:14,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 21:59:14,785 INFO L413 NwaCegarLoop]: 4145 mSDtfsCounter, 4403 mSDsluCounter, 8210 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4417 SdHoareTripleChecker+Valid, 12355 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:14,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4417 Valid, 12355 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 21:59:14,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2524 states. [2023-12-21 21:59:14,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2524 to 2524. [2023-12-21 21:59:14,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2524 states, 2482 states have (on average 1.8013698630136987) internal successors, (4471), 2485 states have internal predecessors, (4471), 26 states have call successors, (26), 15 states have call predecessors, (26), 14 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-21 21:59:14,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2524 states to 2524 states and 4521 transitions. [2023-12-21 21:59:14,827 INFO L78 Accepts]: Start accepts. Automaton has 2524 states and 4521 transitions. Word has length 102 [2023-12-21 21:59:14,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:14,827 INFO L495 AbstractCegarLoop]: Abstraction has 2524 states and 4521 transitions. [2023-12-21 21:59:14,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:14,827 INFO L276 IsEmpty]: Start isEmpty. Operand 2524 states and 4521 transitions. [2023-12-21 21:59:14,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 21:59:14,828 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:14,828 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] [2023-12-21 21:59:14,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:15,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:15,032 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:15,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:15,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1672040771, now seen corresponding path program 1 times [2023-12-21 21:59:15,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:15,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [965074341] [2023-12-21 21:59:15,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:15,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:15,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:15,034 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:15,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-21 21:59:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:15,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:59:15,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:15,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:59:15,163 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:15,164 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:15,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [965074341] [2023-12-21 21:59:15,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [965074341] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:15,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:15,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:15,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841197418] [2023-12-21 21:59:15,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:15,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 21:59:15,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:15,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 21:59:15,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:59:15,165 INFO L87 Difference]: Start difference. First operand 2524 states and 4521 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:15,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:15,517 INFO L93 Difference]: Finished difference Result 2962 states and 5145 transitions. [2023-12-21 21:59:15,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 21:59:15,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-21 21:59:15,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:15,533 INFO L225 Difference]: With dead ends: 2962 [2023-12-21 21:59:15,533 INFO L226 Difference]: Without dead ends: 2571 [2023-12-21 21:59:15,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 21:59:15,535 INFO L413 NwaCegarLoop]: 4142 mSDtfsCounter, 4396 mSDsluCounter, 8206 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4410 SdHoareTripleChecker+Valid, 12348 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:15,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4410 Valid, 12348 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 21:59:15,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2023-12-21 21:59:15,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 2571. [2023-12-21 21:59:15,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2571 states, 2526 states have (on average 1.7909738717339667) internal successors, (4524), 2529 states have internal predecessors, (4524), 27 states have call successors, (27), 17 states have call predecessors, (27), 16 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-21 21:59:15,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 4576 transitions. [2023-12-21 21:59:15,581 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 4576 transitions. Word has length 102 [2023-12-21 21:59:15,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:15,581 INFO L495 AbstractCegarLoop]: Abstraction has 2571 states and 4576 transitions. [2023-12-21 21:59:15,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:15,581 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 4576 transitions. [2023-12-21 21:59:15,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 21:59:15,582 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:15,582 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] [2023-12-21 21:59:15,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:15,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:15,786 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:15,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:15,786 INFO L85 PathProgramCache]: Analyzing trace with hash -2030687460, now seen corresponding path program 1 times [2023-12-21 21:59:15,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:15,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394250986] [2023-12-21 21:59:15,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:15,787 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:15,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:15,792 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:15,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-21 21:59:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:15,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:59:15,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:15,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:59:15,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:15,911 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:15,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394250986] [2023-12-21 21:59:15,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394250986] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:15,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:15,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:15,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450998413] [2023-12-21 21:59:15,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:15,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 21:59:15,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:15,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 21:59:15,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:59:15,912 INFO L87 Difference]: Start difference. First operand 2571 states and 4576 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:16,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:16,301 INFO L93 Difference]: Finished difference Result 3056 states and 5255 transitions. [2023-12-21 21:59:16,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 21:59:16,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-21 21:59:16,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:16,307 INFO L225 Difference]: With dead ends: 3056 [2023-12-21 21:59:16,307 INFO L226 Difference]: Without dead ends: 2618 [2023-12-21 21:59:16,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 21:59:16,309 INFO L413 NwaCegarLoop]: 4139 mSDtfsCounter, 4389 mSDsluCounter, 8202 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4403 SdHoareTripleChecker+Valid, 12341 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:16,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4403 Valid, 12341 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 21:59:16,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2618 states. [2023-12-21 21:59:16,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2618 to 2618. [2023-12-21 21:59:16,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2618 states, 2570 states have (on average 1.7801556420233462) internal successors, (4575), 2573 states have internal predecessors, (4575), 28 states have call successors, (28), 19 states have call predecessors, (28), 18 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-21 21:59:16,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2618 states to 2618 states and 4629 transitions. [2023-12-21 21:59:16,374 INFO L78 Accepts]: Start accepts. Automaton has 2618 states and 4629 transitions. Word has length 102 [2023-12-21 21:59:16,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:16,374 INFO L495 AbstractCegarLoop]: Abstraction has 2618 states and 4629 transitions. [2023-12-21 21:59:16,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:16,374 INFO L276 IsEmpty]: Start isEmpty. Operand 2618 states and 4629 transitions. [2023-12-21 21:59:16,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 21:59:16,375 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:16,375 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] [2023-12-21 21:59:16,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:16,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:16,582 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:16,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:16,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1462558940, now seen corresponding path program 1 times [2023-12-21 21:59:16,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:16,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [351153297] [2023-12-21 21:59:16,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:16,583 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:16,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:16,584 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:16,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-21 21:59:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:16,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:59:16,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:16,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:59:16,728 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:16,728 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:16,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [351153297] [2023-12-21 21:59:16,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [351153297] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:16,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:16,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:16,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95224085] [2023-12-21 21:59:16,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:16,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 21:59:16,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:16,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 21:59:16,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:59:16,729 INFO L87 Difference]: Start difference. First operand 2618 states and 4629 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:16,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:16,885 INFO L93 Difference]: Finished difference Result 3142 states and 5349 transitions. [2023-12-21 21:59:16,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 21:59:16,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-21 21:59:16,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:16,890 INFO L225 Difference]: With dead ends: 3142 [2023-12-21 21:59:16,890 INFO L226 Difference]: Without dead ends: 2658 [2023-12-21 21:59:16,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:59:16,892 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 56 mSDsluCounter, 8462 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 12698 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:16,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 12698 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:59:16,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2023-12-21 21:59:16,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2620. [2023-12-21 21:59:16,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2620 states, 2572 states have (on average 1.7772161741835149) internal successors, (4571), 2575 states have internal predecessors, (4571), 28 states have call successors, (28), 19 states have call predecessors, (28), 18 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-21 21:59:16,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2620 states to 2620 states and 4625 transitions. [2023-12-21 21:59:16,944 INFO L78 Accepts]: Start accepts. Automaton has 2620 states and 4625 transitions. Word has length 102 [2023-12-21 21:59:16,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:16,945 INFO L495 AbstractCegarLoop]: Abstraction has 2620 states and 4625 transitions. [2023-12-21 21:59:16,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:16,945 INFO L276 IsEmpty]: Start isEmpty. Operand 2620 states and 4625 transitions. [2023-12-21 21:59:16,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 21:59:16,946 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:16,946 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] [2023-12-21 21:59:16,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:17,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:17,150 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:17,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:17,151 INFO L85 PathProgramCache]: Analyzing trace with hash 730591514, now seen corresponding path program 1 times [2023-12-21 21:59:17,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:17,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [86089084] [2023-12-21 21:59:17,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:17,151 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:17,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:17,152 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:17,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-21 21:59:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:17,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:59:17,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:17,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:59:17,244 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:17,245 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:17,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [86089084] [2023-12-21 21:59:17,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [86089084] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:17,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:17,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:17,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131217856] [2023-12-21 21:59:17,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:17,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 21:59:17,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:17,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 21:59:17,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:59:17,246 INFO L87 Difference]: Start difference. First operand 2620 states and 4625 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:17,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:17,338 INFO L93 Difference]: Finished difference Result 3344 states and 5610 transitions. [2023-12-21 21:59:17,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 21:59:17,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-21 21:59:17,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:17,344 INFO L225 Difference]: With dead ends: 3344 [2023-12-21 21:59:17,344 INFO L226 Difference]: Without dead ends: 2858 [2023-12-21 21:59:17,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:59:17,346 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 47 mSDsluCounter, 8467 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 12703 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:17,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 12703 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:59:17,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2858 states. [2023-12-21 21:59:17,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2858 to 2634. [2023-12-21 21:59:17,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2634 states, 2586 states have (on average 1.7730085073472543) internal successors, (4585), 2589 states have internal predecessors, (4585), 28 states have call successors, (28), 19 states have call predecessors, (28), 18 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-21 21:59:17,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2634 states to 2634 states and 4639 transitions. [2023-12-21 21:59:17,389 INFO L78 Accepts]: Start accepts. Automaton has 2634 states and 4639 transitions. Word has length 102 [2023-12-21 21:59:17,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:17,389 INFO L495 AbstractCegarLoop]: Abstraction has 2634 states and 4639 transitions. [2023-12-21 21:59:17,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:17,390 INFO L276 IsEmpty]: Start isEmpty. Operand 2634 states and 4639 transitions. [2023-12-21 21:59:17,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 21:59:17,390 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:17,390 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] [2023-12-21 21:59:17,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:17,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:17,594 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:17,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:17,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1602801124, now seen corresponding path program 1 times [2023-12-21 21:59:17,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:17,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464877825] [2023-12-21 21:59:17,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:17,595 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:17,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:17,596 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:17,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-21 21:59:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:17,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:59:17,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:17,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:59:17,712 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:17,712 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:17,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1464877825] [2023-12-21 21:59:17,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1464877825] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:17,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:17,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:17,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411289071] [2023-12-21 21:59:17,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:17,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 21:59:17,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:17,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 21:59:17,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:59:17,713 INFO L87 Difference]: Start difference. First operand 2634 states and 4639 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:17,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:17,803 INFO L93 Difference]: Finished difference Result 3162 states and 5352 transitions. [2023-12-21 21:59:17,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 21:59:17,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-21 21:59:17,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:17,808 INFO L225 Difference]: With dead ends: 3162 [2023-12-21 21:59:17,808 INFO L226 Difference]: Without dead ends: 2662 [2023-12-21 21:59:17,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:59:17,810 INFO L413 NwaCegarLoop]: 4237 mSDtfsCounter, 38 mSDsluCounter, 8465 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 12702 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:17,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 12702 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:59:17,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2023-12-21 21:59:17,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 2636. [2023-12-21 21:59:17,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2588 states have (on average 1.7700927357032457) internal successors, (4581), 2591 states have internal predecessors, (4581), 28 states have call successors, (28), 19 states have call predecessors, (28), 18 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-21 21:59:17,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 4635 transitions. [2023-12-21 21:59:17,951 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 4635 transitions. Word has length 102 [2023-12-21 21:59:17,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:17,951 INFO L495 AbstractCegarLoop]: Abstraction has 2636 states and 4635 transitions. [2023-12-21 21:59:17,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:17,951 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 4635 transitions. [2023-12-21 21:59:17,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 21:59:17,952 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:17,952 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] [2023-12-21 21:59:17,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-12-21 21:59:18,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:18,156 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:18,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:18,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1562126374, now seen corresponding path program 1 times [2023-12-21 21:59:18,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:18,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390988377] [2023-12-21 21:59:18,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:18,157 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:18,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:18,181 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:18,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-21 21:59:18,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:18,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:59:18,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:18,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:59:18,279 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:18,279 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:18,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390988377] [2023-12-21 21:59:18,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [390988377] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:18,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:18,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:18,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164660371] [2023-12-21 21:59:18,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:18,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 21:59:18,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:18,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 21:59:18,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:59:18,280 INFO L87 Difference]: Start difference. First operand 2636 states and 4635 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:18,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:18,387 INFO L93 Difference]: Finished difference Result 3160 states and 5336 transitions. [2023-12-21 21:59:18,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 21:59:18,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-21 21:59:18,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:18,393 INFO L225 Difference]: With dead ends: 3160 [2023-12-21 21:59:18,393 INFO L226 Difference]: Without dead ends: 2658 [2023-12-21 21:59:18,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:59:18,394 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 29 mSDsluCounter, 8464 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 12700 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:18,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 12700 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:59:18,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2023-12-21 21:59:18,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2638. [2023-12-21 21:59:18,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2638 states, 2590 states have (on average 1.7671814671814672) internal successors, (4577), 2593 states have internal predecessors, (4577), 28 states have call successors, (28), 19 states have call predecessors, (28), 18 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-21 21:59:18,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2638 states to 2638 states and 4631 transitions. [2023-12-21 21:59:18,448 INFO L78 Accepts]: Start accepts. Automaton has 2638 states and 4631 transitions. Word has length 102 [2023-12-21 21:59:18,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:18,448 INFO L495 AbstractCegarLoop]: Abstraction has 2638 states and 4631 transitions. [2023-12-21 21:59:18,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:18,448 INFO L276 IsEmpty]: Start isEmpty. Operand 2638 states and 4631 transitions. [2023-12-21 21:59:18,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 21:59:18,449 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:18,449 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] [2023-12-21 21:59:18,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-21 21:59:18,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:18,654 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:18,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:18,654 INFO L85 PathProgramCache]: Analyzing trace with hash 704254812, now seen corresponding path program 1 times [2023-12-21 21:59:18,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:18,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072970826] [2023-12-21 21:59:18,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:18,655 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:18,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:18,656 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:18,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-21 21:59:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:18,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:59:18,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:18,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:59:18,755 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:18,755 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:18,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1072970826] [2023-12-21 21:59:18,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1072970826] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:18,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:18,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:18,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642830616] [2023-12-21 21:59:18,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:18,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 21:59:18,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:18,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 21:59:18,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:59:18,757 INFO L87 Difference]: Start difference. First operand 2638 states and 4631 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:18,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:18,864 INFO L93 Difference]: Finished difference Result 3152 states and 5312 transitions. [2023-12-21 21:59:18,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 21:59:18,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-21 21:59:18,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:18,869 INFO L225 Difference]: With dead ends: 3152 [2023-12-21 21:59:18,869 INFO L226 Difference]: Without dead ends: 2648 [2023-12-21 21:59:18,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:59:18,870 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 11 mSDsluCounter, 8466 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12702 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:18,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12702 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:59:18,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2648 states. [2023-12-21 21:59:18,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2648 to 2640. [2023-12-21 21:59:18,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2640 states, 2592 states have (on average 1.7642746913580247) internal successors, (4573), 2595 states have internal predecessors, (4573), 28 states have call successors, (28), 19 states have call predecessors, (28), 18 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-21 21:59:18,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2640 states to 2640 states and 4627 transitions. [2023-12-21 21:59:18,928 INFO L78 Accepts]: Start accepts. Automaton has 2640 states and 4627 transitions. Word has length 102 [2023-12-21 21:59:18,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:18,928 INFO L495 AbstractCegarLoop]: Abstraction has 2640 states and 4627 transitions. [2023-12-21 21:59:18,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:18,928 INFO L276 IsEmpty]: Start isEmpty. Operand 2640 states and 4627 transitions. [2023-12-21 21:59:18,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 21:59:18,930 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:18,930 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] [2023-12-21 21:59:18,948 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:19,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:19,134 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:19,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:19,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1127901534, now seen corresponding path program 1 times [2023-12-21 21:59:19,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:19,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1344710061] [2023-12-21 21:59:19,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:19,136 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:19,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:19,137 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:19,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-21 21:59:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:19,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:59:19,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:19,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:59:19,240 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:19,240 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:19,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1344710061] [2023-12-21 21:59:19,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1344710061] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:19,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:19,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:19,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650408489] [2023-12-21 21:59:19,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:19,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 21:59:19,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:19,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 21:59:19,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:59:19,243 INFO L87 Difference]: Start difference. First operand 2640 states and 4627 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:19,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:19,350 INFO L93 Difference]: Finished difference Result 3150 states and 5296 transitions. [2023-12-21 21:59:19,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 21:59:19,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-21 21:59:19,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:19,354 INFO L225 Difference]: With dead ends: 3150 [2023-12-21 21:59:19,354 INFO L226 Difference]: Without dead ends: 2644 [2023-12-21 21:59:19,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:59:19,356 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 2 mSDsluCounter, 8467 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12703 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:19,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12703 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:59:19,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2644 states. [2023-12-21 21:59:19,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2644 to 2642. [2023-12-21 21:59:19,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2642 states, 2594 states have (on average 1.761372397841172) internal successors, (4569), 2597 states have internal predecessors, (4569), 28 states have call successors, (28), 19 states have call predecessors, (28), 18 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-21 21:59:19,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2642 states to 2642 states and 4623 transitions. [2023-12-21 21:59:19,409 INFO L78 Accepts]: Start accepts. Automaton has 2642 states and 4623 transitions. Word has length 102 [2023-12-21 21:59:19,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:19,409 INFO L495 AbstractCegarLoop]: Abstraction has 2642 states and 4623 transitions. [2023-12-21 21:59:19,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:19,410 INFO L276 IsEmpty]: Start isEmpty. Operand 2642 states and 4623 transitions. [2023-12-21 21:59:19,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 21:59:19,410 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:19,411 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] [2023-12-21 21:59:19,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:19,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:19,614 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:19,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:19,615 INFO L85 PathProgramCache]: Analyzing trace with hash 733534748, now seen corresponding path program 1 times [2023-12-21 21:59:19,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:19,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084034001] [2023-12-21 21:59:19,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:19,615 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:19,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:19,616 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:19,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-21 21:59:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:19,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 21:59:19,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:19,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:59:19,853 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:19,853 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:19,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084034001] [2023-12-21 21:59:19,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084034001] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:19,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:19,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:19,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958953642] [2023-12-21 21:59:19,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:19,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 21:59:19,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:19,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 21:59:19,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:59:19,855 INFO L87 Difference]: Start difference. First operand 2642 states and 4623 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:20,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:20,318 INFO L93 Difference]: Finished difference Result 3685 states and 5940 transitions. [2023-12-21 21:59:20,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 21:59:20,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-21 21:59:20,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:20,323 INFO L225 Difference]: With dead ends: 3685 [2023-12-21 21:59:20,323 INFO L226 Difference]: Without dead ends: 3176 [2023-12-21 21:59:20,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 21:59:20,326 INFO L413 NwaCegarLoop]: 4159 mSDtfsCounter, 4402 mSDsluCounter, 8398 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4415 SdHoareTripleChecker+Valid, 12557 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:20,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4415 Valid, 12557 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 21:59:20,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3176 states. [2023-12-21 21:59:20,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3176 to 3157. [2023-12-21 21:59:20,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3157 states, 3069 states have (on average 1.685565330726621) internal successors, (5173), 3073 states have internal predecessors, (5173), 49 states have call successors, (49), 37 states have call predecessors, (49), 37 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-21 21:59:20,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3157 states to 3157 states and 5270 transitions. [2023-12-21 21:59:20,422 INFO L78 Accepts]: Start accepts. Automaton has 3157 states and 5270 transitions. Word has length 102 [2023-12-21 21:59:20,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:20,422 INFO L495 AbstractCegarLoop]: Abstraction has 3157 states and 5270 transitions. [2023-12-21 21:59:20,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:20,422 INFO L276 IsEmpty]: Start isEmpty. Operand 3157 states and 5270 transitions. [2023-12-21 21:59:20,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 21:59:20,423 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:20,423 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] [2023-12-21 21:59:20,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:20,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:20,627 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:20,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:20,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1008294362, now seen corresponding path program 1 times [2023-12-21 21:59:20,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:20,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1502791408] [2023-12-21 21:59:20,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:20,628 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:20,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:20,646 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:20,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-21 21:59:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:20,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 21:59:20,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:20,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:59:20,811 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:20,812 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:20,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1502791408] [2023-12-21 21:59:20,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1502791408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:20,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:20,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:20,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413930394] [2023-12-21 21:59:20,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:20,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 21:59:20,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:20,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 21:59:20,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:59:20,813 INFO L87 Difference]: Start difference. First operand 3157 states and 5270 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:21,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:21,222 INFO L93 Difference]: Finished difference Result 4313 states and 6745 transitions. [2023-12-21 21:59:21,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 21:59:21,222 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-21 21:59:21,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:21,227 INFO L225 Difference]: With dead ends: 4313 [2023-12-21 21:59:21,227 INFO L226 Difference]: Without dead ends: 3289 [2023-12-21 21:59:21,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 21:59:21,230 INFO L413 NwaCegarLoop]: 4137 mSDtfsCounter, 4369 mSDsluCounter, 8198 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4382 SdHoareTripleChecker+Valid, 12335 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:21,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4382 Valid, 12335 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 21:59:21,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3289 states. [2023-12-21 21:59:21,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3289 to 3221. [2023-12-21 21:59:21,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3221 states, 3131 states have (on average 1.6671989779623124) internal successors, (5220), 3135 states have internal predecessors, (5220), 49 states have call successors, (49), 39 states have call predecessors, (49), 39 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-21 21:59:21,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3221 states to 3221 states and 5317 transitions. [2023-12-21 21:59:21,317 INFO L78 Accepts]: Start accepts. Automaton has 3221 states and 5317 transitions. Word has length 102 [2023-12-21 21:59:21,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:21,318 INFO L495 AbstractCegarLoop]: Abstraction has 3221 states and 5317 transitions. [2023-12-21 21:59:21,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:59:21,318 INFO L276 IsEmpty]: Start isEmpty. Operand 3221 states and 5317 transitions. [2023-12-21 21:59:21,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 21:59:21,319 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:21,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:59:21,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:21,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:21,522 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:21,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:21,523 INFO L85 PathProgramCache]: Analyzing trace with hash 874280856, now seen corresponding path program 1 times [2023-12-21 21:59:21,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:21,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224841301] [2023-12-21 21:59:21,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:21,523 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:21,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:21,541 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:21,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-21 21:59:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:21,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:59:21,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:21,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:59:21,705 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:21,705 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:21,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224841301] [2023-12-21 21:59:21,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1224841301] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:21,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:21,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 21:59:21,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139643053] [2023-12-21 21:59:21,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:21,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:59:21,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:21,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:59:21,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:59:21,707 INFO L87 Difference]: Start difference. First operand 3221 states and 5317 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-21 21:59:21,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:21,871 INFO L93 Difference]: Finished difference Result 5354 states and 7964 transitions. [2023-12-21 21:59:21,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:59:21,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 102 [2023-12-21 21:59:21,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:21,879 INFO L225 Difference]: With dead ends: 5354 [2023-12-21 21:59:21,880 INFO L226 Difference]: Without dead ends: 4267 [2023-12-21 21:59:21,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:59:21,883 INFO L413 NwaCegarLoop]: 4272 mSDtfsCounter, 4139 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4139 SdHoareTripleChecker+Valid, 4519 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:21,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4139 Valid, 4519 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:59:21,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4267 states. [2023-12-21 21:59:22,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4267 to 4265. [2023-12-21 21:59:22,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4265 states, 4093 states have (on average 1.5614463718543856) internal successors, (6391), 4100 states have internal predecessors, (6391), 92 states have call successors, (92), 77 states have call predecessors, (92), 78 states have return successors, (92), 88 states have call predecessors, (92), 90 states have call successors, (92) [2023-12-21 21:59:22,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4265 states to 4265 states and 6575 transitions. [2023-12-21 21:59:22,033 INFO L78 Accepts]: Start accepts. Automaton has 4265 states and 6575 transitions. Word has length 102 [2023-12-21 21:59:22,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:22,046 INFO L495 AbstractCegarLoop]: Abstraction has 4265 states and 6575 transitions. [2023-12-21 21:59:22,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-21 21:59:22,046 INFO L276 IsEmpty]: Start isEmpty. Operand 4265 states and 6575 transitions. [2023-12-21 21:59:22,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-21 21:59:22,049 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:22,049 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:59:22,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:22,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:22,253 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:22,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:22,253 INFO L85 PathProgramCache]: Analyzing trace with hash -305904691, now seen corresponding path program 1 times [2023-12-21 21:59:22,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:22,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22759984] [2023-12-21 21:59:22,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:22,254 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:22,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:22,255 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:22,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-21 21:59:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:22,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 21:59:22,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:22,525 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-21 21:59:22,525 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:22,526 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:22,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [22759984] [2023-12-21 21:59:22,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [22759984] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:22,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:22,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:22,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214992036] [2023-12-21 21:59:22,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:22,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 21:59:22,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:22,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 21:59:22,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:59:22,527 INFO L87 Difference]: Start difference. First operand 4265 states and 6575 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 21:59:22,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:22,917 INFO L93 Difference]: Finished difference Result 8428 states and 11649 transitions. [2023-12-21 21:59:22,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 21:59:22,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 164 [2023-12-21 21:59:22,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:22,926 INFO L225 Difference]: With dead ends: 8428 [2023-12-21 21:59:22,926 INFO L226 Difference]: Without dead ends: 6298 [2023-12-21 21:59:22,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:59:22,929 INFO L413 NwaCegarLoop]: 4292 mSDtfsCounter, 4328 mSDsluCounter, 4399 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4333 SdHoareTripleChecker+Valid, 8691 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:22,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4333 Valid, 8691 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 21:59:22,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6298 states. [2023-12-21 21:59:23,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6298 to 6294. [2023-12-21 21:59:23,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6294 states, 5963 states have (on average 1.4531276203253396) internal successors, (8665), 5979 states have internal predecessors, (8665), 173 states have call successors, (173), 145 states have call predecessors, (173), 156 states have return successors, (195), 171 states have call predecessors, (195), 171 states have call successors, (195) [2023-12-21 21:59:23,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6294 states to 6294 states and 9033 transitions. [2023-12-21 21:59:23,225 INFO L78 Accepts]: Start accepts. Automaton has 6294 states and 9033 transitions. Word has length 164 [2023-12-21 21:59:23,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:23,226 INFO L495 AbstractCegarLoop]: Abstraction has 6294 states and 9033 transitions. [2023-12-21 21:59:23,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 21:59:23,226 INFO L276 IsEmpty]: Start isEmpty. Operand 6294 states and 9033 transitions. [2023-12-21 21:59:23,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-21 21:59:23,228 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:23,229 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:59:23,248 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 [2023-12-21 21:59:23,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:23,433 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:23,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:23,434 INFO L85 PathProgramCache]: Analyzing trace with hash 38923471, now seen corresponding path program 1 times [2023-12-21 21:59:23,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:23,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282954312] [2023-12-21 21:59:23,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:23,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:23,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:23,435 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:23,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-21 21:59:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:23,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:59:23,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:23,597 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-21 21:59:23,597 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:23,597 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:23,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282954312] [2023-12-21 21:59:23,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282954312] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:23,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:23,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:59:23,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197100227] [2023-12-21 21:59:23,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:23,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:59:23,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:23,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:59:23,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:59:23,599 INFO L87 Difference]: Start difference. First operand 6294 states and 9033 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 21:59:23,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:23,764 INFO L93 Difference]: Finished difference Result 10444 states and 14068 transitions. [2023-12-21 21:59:23,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:59:23,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 164 [2023-12-21 21:59:23,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:23,773 INFO L225 Difference]: With dead ends: 10444 [2023-12-21 21:59:23,774 INFO L226 Difference]: Without dead ends: 6285 [2023-12-21 21:59:23,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:59:23,780 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 295 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 8189 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:23,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 8189 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:59:23,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6285 states. [2023-12-21 21:59:23,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6285 to 6285. [2023-12-21 21:59:23,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6285 states, 5957 states have (on average 1.4527446701359745) internal successors, (8654), 5972 states have internal predecessors, (8654), 170 states have call successors, (170), 145 states have call predecessors, (170), 156 states have return successors, (192), 168 states have call predecessors, (192), 168 states have call successors, (192) [2023-12-21 21:59:23,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6285 states to 6285 states and 9016 transitions. [2023-12-21 21:59:23,946 INFO L78 Accepts]: Start accepts. Automaton has 6285 states and 9016 transitions. Word has length 164 [2023-12-21 21:59:23,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:23,946 INFO L495 AbstractCegarLoop]: Abstraction has 6285 states and 9016 transitions. [2023-12-21 21:59:23,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 21:59:23,947 INFO L276 IsEmpty]: Start isEmpty. Operand 6285 states and 9016 transitions. [2023-12-21 21:59:23,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-21 21:59:23,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:23,949 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:59:23,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:24,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:24,154 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:24,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:24,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1829010136, now seen corresponding path program 1 times [2023-12-21 21:59:24,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:24,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281963824] [2023-12-21 21:59:24,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:24,155 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:24,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:24,157 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:24,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-21 21:59:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:24,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 21:59:24,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:24,434 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-21 21:59:24,434 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:24,434 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:24,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281963824] [2023-12-21 21:59:24,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [281963824] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:24,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:24,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:24,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437140155] [2023-12-21 21:59:24,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:24,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 21:59:24,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:24,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 21:59:24,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:59:24,435 INFO L87 Difference]: Start difference. First operand 6285 states and 9016 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 21:59:24,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:24,937 INFO L93 Difference]: Finished difference Result 14245 states and 18680 transitions. [2023-12-21 21:59:24,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 21:59:24,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 166 [2023-12-21 21:59:24,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:24,953 INFO L225 Difference]: With dead ends: 14245 [2023-12-21 21:59:24,953 INFO L226 Difference]: Without dead ends: 10095 [2023-12-21 21:59:24,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:59:24,963 INFO L413 NwaCegarLoop]: 4276 mSDtfsCounter, 4323 mSDsluCounter, 4381 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4328 SdHoareTripleChecker+Valid, 8657 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:24,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4328 Valid, 8657 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 21:59:24,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10095 states. [2023-12-21 21:59:25,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10095 to 10091. [2023-12-21 21:59:25,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10091 states, 9464 states have (on average 1.3641166525781911) internal successors, (12910), 9496 states have internal predecessors, (12910), 321 states have call successors, (321), 273 states have call predecessors, (321), 304 states have return successors, (387), 323 states have call predecessors, (387), 319 states have call successors, (387) [2023-12-21 21:59:25,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10091 states to 10091 states and 13618 transitions. [2023-12-21 21:59:25,401 INFO L78 Accepts]: Start accepts. Automaton has 10091 states and 13618 transitions. Word has length 166 [2023-12-21 21:59:25,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:25,402 INFO L495 AbstractCegarLoop]: Abstraction has 10091 states and 13618 transitions. [2023-12-21 21:59:25,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 21:59:25,402 INFO L276 IsEmpty]: Start isEmpty. Operand 10091 states and 13618 transitions. [2023-12-21 21:59:25,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-21 21:59:25,409 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:25,409 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:59:25,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:25,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:25,613 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:25,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:25,614 INFO L85 PathProgramCache]: Analyzing trace with hash 270728294, now seen corresponding path program 1 times [2023-12-21 21:59:25,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:25,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291781606] [2023-12-21 21:59:25,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:25,614 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:25,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:25,615 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:25,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-21 21:59:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:25,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:59:25,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:25,736 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-21 21:59:25,737 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:25,737 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:25,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [291781606] [2023-12-21 21:59:25,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [291781606] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:25,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:25,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:59:25,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544540961] [2023-12-21 21:59:25,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:25,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:59:25,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:25,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:59:25,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:59:25,738 INFO L87 Difference]: Start difference. First operand 10091 states and 13618 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 21:59:26,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:26,054 INFO L93 Difference]: Finished difference Result 18039 states and 23241 transitions. [2023-12-21 21:59:26,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:59:26,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 166 [2023-12-21 21:59:26,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:26,069 INFO L225 Difference]: With dead ends: 18039 [2023-12-21 21:59:26,069 INFO L226 Difference]: Without dead ends: 10083 [2023-12-21 21:59:26,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:59:26,082 INFO L413 NwaCegarLoop]: 4231 mSDtfsCounter, 293 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 8188 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:26,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 8188 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:59:26,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10083 states. [2023-12-21 21:59:26,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10083 to 10083. [2023-12-21 21:59:26,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10083 states, 9459 states have (on average 1.3638862459033725) internal successors, (12901), 9490 states have internal predecessors, (12901), 318 states have call successors, (318), 273 states have call predecessors, (318), 304 states have return successors, (384), 320 states have call predecessors, (384), 316 states have call successors, (384) [2023-12-21 21:59:26,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10083 states to 10083 states and 13603 transitions. [2023-12-21 21:59:26,392 INFO L78 Accepts]: Start accepts. Automaton has 10083 states and 13603 transitions. Word has length 166 [2023-12-21 21:59:26,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:26,392 INFO L495 AbstractCegarLoop]: Abstraction has 10083 states and 13603 transitions. [2023-12-21 21:59:26,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 21:59:26,392 INFO L276 IsEmpty]: Start isEmpty. Operand 10083 states and 13603 transitions. [2023-12-21 21:59:26,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-21 21:59:26,398 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:26,398 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:59:26,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:26,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:26,603 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:26,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:26,604 INFO L85 PathProgramCache]: Analyzing trace with hash 2120199821, now seen corresponding path program 1 times [2023-12-21 21:59:26,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:26,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [364413015] [2023-12-21 21:59:26,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:26,604 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:26,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:26,605 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:26,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-21 21:59:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:26,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 21:59:26,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:26,887 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-21 21:59:26,887 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:26,887 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:26,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [364413015] [2023-12-21 21:59:26,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [364413015] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:26,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:26,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:26,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871102185] [2023-12-21 21:59:26,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:26,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 21:59:26,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:26,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 21:59:26,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:59:26,889 INFO L87 Difference]: Start difference. First operand 10083 states and 13603 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 21:59:27,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:27,762 INFO L93 Difference]: Finished difference Result 25294 states and 32029 transitions. [2023-12-21 21:59:27,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 21:59:27,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 168 [2023-12-21 21:59:27,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:27,786 INFO L225 Difference]: With dead ends: 25294 [2023-12-21 21:59:27,786 INFO L226 Difference]: Without dead ends: 17346 [2023-12-21 21:59:27,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:59:27,799 INFO L413 NwaCegarLoop]: 4262 mSDtfsCounter, 4316 mSDsluCounter, 4363 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4322 SdHoareTripleChecker+Valid, 8625 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:27,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4322 Valid, 8625 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 21:59:27,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17346 states. [2023-12-21 21:59:28,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17346 to 17342. [2023-12-21 21:59:28,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17342 states, 16147 states have (on average 1.3009847030408126) internal successors, (21007), 16215 states have internal predecessors, (21007), 601 states have call successors, (601), 513 states have call predecessors, (601), 592 states have return successors, (763), 615 states have call predecessors, (763), 599 states have call successors, (763) [2023-12-21 21:59:28,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17342 states to 17342 states and 22371 transitions. [2023-12-21 21:59:28,487 INFO L78 Accepts]: Start accepts. Automaton has 17342 states and 22371 transitions. Word has length 168 [2023-12-21 21:59:28,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:28,489 INFO L495 AbstractCegarLoop]: Abstraction has 17342 states and 22371 transitions. [2023-12-21 21:59:28,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 21:59:28,489 INFO L276 IsEmpty]: Start isEmpty. Operand 17342 states and 22371 transitions. [2023-12-21 21:59:28,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-21 21:59:28,518 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:28,518 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:59:28,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:28,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:28,719 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:28,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:28,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1507385585, now seen corresponding path program 1 times [2023-12-21 21:59:28,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:28,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892751144] [2023-12-21 21:59:28,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:28,720 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:28,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:28,721 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:28,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-21 21:59:28,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:28,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:59:28,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:28,834 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-21 21:59:28,834 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:28,834 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:28,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1892751144] [2023-12-21 21:59:28,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1892751144] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:28,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:28,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:59:28,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247091506] [2023-12-21 21:59:28,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:28,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:59:28,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:28,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:59:28,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:59:28,836 INFO L87 Difference]: Start difference. First operand 17342 states and 22371 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 21:59:29,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:29,353 INFO L93 Difference]: Finished difference Result 32542 states and 40750 transitions. [2023-12-21 21:59:29,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:59:29,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 168 [2023-12-21 21:59:29,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:29,381 INFO L225 Difference]: With dead ends: 32542 [2023-12-21 21:59:29,381 INFO L226 Difference]: Without dead ends: 17335 [2023-12-21 21:59:29,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:59:29,403 INFO L413 NwaCegarLoop]: 4230 mSDtfsCounter, 291 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 8187 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:29,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 8187 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:59:29,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17335 states. [2023-12-21 21:59:30,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17335 to 17335. [2023-12-21 21:59:30,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17335 states, 16143 states have (on average 1.3008734435978442) internal successors, (21000), 16210 states have internal predecessors, (21000), 598 states have call successors, (598), 513 states have call predecessors, (598), 592 states have return successors, (760), 612 states have call predecessors, (760), 596 states have call successors, (760) [2023-12-21 21:59:30,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17335 states to 17335 states and 22358 transitions. [2023-12-21 21:59:30,089 INFO L78 Accepts]: Start accepts. Automaton has 17335 states and 22358 transitions. Word has length 168 [2023-12-21 21:59:30,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:30,089 INFO L495 AbstractCegarLoop]: Abstraction has 17335 states and 22358 transitions. [2023-12-21 21:59:30,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 21:59:30,090 INFO L276 IsEmpty]: Start isEmpty. Operand 17335 states and 22358 transitions. [2023-12-21 21:59:30,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-12-21 21:59:30,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:30,096 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:59:30,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:30,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:30,303 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:30,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:30,303 INFO L85 PathProgramCache]: Analyzing trace with hash -2112045400, now seen corresponding path program 1 times [2023-12-21 21:59:30,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:30,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1494625157] [2023-12-21 21:59:30,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:30,304 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:30,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:30,305 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:30,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-21 21:59:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:30,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 21:59:30,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:30,630 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-21 21:59:30,630 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:30,630 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:30,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1494625157] [2023-12-21 21:59:30,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1494625157] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:30,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:30,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:30,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898087160] [2023-12-21 21:59:30,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:30,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 21:59:30,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:30,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 21:59:30,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:59:30,632 INFO L87 Difference]: Start difference. First operand 17335 states and 22358 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 21:59:31,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:31,971 INFO L93 Difference]: Finished difference Result 49925 states and 61551 transitions. [2023-12-21 21:59:31,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 21:59:31,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 170 [2023-12-21 21:59:31,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:32,021 INFO L225 Difference]: With dead ends: 49925 [2023-12-21 21:59:32,021 INFO L226 Difference]: Without dead ends: 34725 [2023-12-21 21:59:32,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:59:32,036 INFO L413 NwaCegarLoop]: 4258 mSDtfsCounter, 4319 mSDsluCounter, 4349 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4325 SdHoareTripleChecker+Valid, 8607 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:32,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4325 Valid, 8607 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 21:59:32,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34725 states. [2023-12-21 21:59:33,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34725 to 34081. [2023-12-21 21:59:33,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34081 states, 31446 states have (on average 1.2515423265280163) internal successors, (39356), 31786 states have internal predecessors, (39356), 1129 states have call successors, (1129), 961 states have call predecessors, (1129), 1504 states have return successors, (1868), 1335 states have call predecessors, (1868), 1127 states have call successors, (1868) [2023-12-21 21:59:33,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34081 states to 34081 states and 42353 transitions. [2023-12-21 21:59:33,224 INFO L78 Accepts]: Start accepts. Automaton has 34081 states and 42353 transitions. Word has length 170 [2023-12-21 21:59:33,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:33,225 INFO L495 AbstractCegarLoop]: Abstraction has 34081 states and 42353 transitions. [2023-12-21 21:59:33,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 21:59:33,225 INFO L276 IsEmpty]: Start isEmpty. Operand 34081 states and 42353 transitions. [2023-12-21 21:59:33,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-12-21 21:59:33,237 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:33,237 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:59:33,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:33,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:33,441 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:33,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:33,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1396924006, now seen corresponding path program 1 times [2023-12-21 21:59:33,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:33,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828583144] [2023-12-21 21:59:33,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:33,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:33,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:33,443 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:33,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-21 21:59:33,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:33,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:59:33,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:33,568 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-21 21:59:33,568 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:33,568 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:33,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828583144] [2023-12-21 21:59:33,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828583144] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:33,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:33,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:59:33,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351434638] [2023-12-21 21:59:33,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:33,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:59:33,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:33,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:59:33,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:59:33,571 INFO L87 Difference]: Start difference. First operand 34081 states and 42353 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 21:59:34,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:34,742 INFO L93 Difference]: Finished difference Result 66022 states and 80718 transitions. [2023-12-21 21:59:34,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:59:34,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 170 [2023-12-21 21:59:34,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:34,813 INFO L225 Difference]: With dead ends: 66022 [2023-12-21 21:59:34,813 INFO L226 Difference]: Without dead ends: 34075 [2023-12-21 21:59:34,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:59:34,865 INFO L413 NwaCegarLoop]: 4229 mSDtfsCounter, 289 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 8186 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:34,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 8186 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:59:34,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34075 states. [2023-12-21 21:59:36,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34075 to 34075. [2023-12-21 21:59:36,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34075 states, 31443 states have (on average 1.2515027192061827) internal successors, (39351), 31782 states have internal predecessors, (39351), 1126 states have call successors, (1126), 961 states have call predecessors, (1126), 1504 states have return successors, (1864), 1332 states have call predecessors, (1864), 1124 states have call successors, (1864) [2023-12-21 21:59:36,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34075 states to 34075 states and 42341 transitions. [2023-12-21 21:59:36,613 INFO L78 Accepts]: Start accepts. Automaton has 34075 states and 42341 transitions. Word has length 170 [2023-12-21 21:59:36,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:36,614 INFO L495 AbstractCegarLoop]: Abstraction has 34075 states and 42341 transitions. [2023-12-21 21:59:36,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 21:59:36,614 INFO L276 IsEmpty]: Start isEmpty. Operand 34075 states and 42341 transitions. [2023-12-21 21:59:36,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-21 21:59:36,633 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:36,633 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:59:36,637 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 (31)] Ended with exit code 0 [2023-12-21 21:59:36,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:36,837 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:36,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:36,838 INFO L85 PathProgramCache]: Analyzing trace with hash 441987405, now seen corresponding path program 1 times [2023-12-21 21:59:36,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:36,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1119476181] [2023-12-21 21:59:36,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:36,838 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:36,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:36,839 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:36,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-21 21:59:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:36,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 21:59:36,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:37,099 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-21 21:59:37,099 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:37,100 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:37,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1119476181] [2023-12-21 21:59:37,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1119476181] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:37,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:37,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:37,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208145530] [2023-12-21 21:59:37,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:37,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 21:59:37,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:37,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 21:59:37,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:59:37,101 INFO L87 Difference]: Start difference. First operand 34075 states and 42341 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 21:59:39,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:39,374 INFO L93 Difference]: Finished difference Result 94143 states and 114379 transitions. [2023-12-21 21:59:39,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 21:59:39,375 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 172 [2023-12-21 21:59:39,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:39,477 INFO L225 Difference]: With dead ends: 94143 [2023-12-21 21:59:39,478 INFO L226 Difference]: Without dead ends: 62203 [2023-12-21 21:59:39,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:59:39,505 INFO L413 NwaCegarLoop]: 4161 mSDtfsCounter, 4316 mSDsluCounter, 4268 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4322 SdHoareTripleChecker+Valid, 8429 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:39,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4322 Valid, 8429 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 21:59:39,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62203 states. [2023-12-21 21:59:42,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62203 to 62199. [2023-12-21 21:59:42,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62199 states, 57199 states have (on average 1.2274165632266298) internal successors, (70207), 57874 states have internal predecessors, (70207), 2118 states have call successors, (2118), 1793 states have call predecessors, (2118), 2880 states have return successors, (3608), 2532 states have call predecessors, (3608), 2116 states have call successors, (3608) [2023-12-21 21:59:42,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62199 states to 62199 states and 75933 transitions. [2023-12-21 21:59:42,184 INFO L78 Accepts]: Start accepts. Automaton has 62199 states and 75933 transitions. Word has length 172 [2023-12-21 21:59:42,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:42,184 INFO L495 AbstractCegarLoop]: Abstraction has 62199 states and 75933 transitions. [2023-12-21 21:59:42,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 21:59:42,184 INFO L276 IsEmpty]: Start isEmpty. Operand 62199 states and 75933 transitions. [2023-12-21 21:59:42,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-21 21:59:42,206 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:42,206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:59:42,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-21 21:59:42,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:42,410 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:42,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:42,411 INFO L85 PathProgramCache]: Analyzing trace with hash 579190824, now seen corresponding path program 1 times [2023-12-21 21:59:42,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:42,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554576697] [2023-12-21 21:59:42,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:42,411 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:42,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:42,412 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:42,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-21 21:59:42,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:42,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 21:59:42,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:42,653 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-21 21:59:42,653 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:42,653 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:42,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554576697] [2023-12-21 21:59:42,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554576697] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:42,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:42,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:59:42,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514029019] [2023-12-21 21:59:42,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:42,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 21:59:42,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:42,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 21:59:42,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:59:42,655 INFO L87 Difference]: Start difference. First operand 62199 states and 75933 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 21:59:47,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:47,487 INFO L93 Difference]: Finished difference Result 174715 states and 210658 transitions. [2023-12-21 21:59:47,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 21:59:47,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 174 [2023-12-21 21:59:47,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:47,741 INFO L225 Difference]: With dead ends: 174715 [2023-12-21 21:59:47,741 INFO L226 Difference]: Without dead ends: 114651 [2023-12-21 21:59:47,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:59:47,791 INFO L413 NwaCegarLoop]: 4221 mSDtfsCounter, 4296 mSDsluCounter, 4310 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4302 SdHoareTripleChecker+Valid, 8531 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:47,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4302 Valid, 8531 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 21:59:47,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114651 states. [2023-12-21 21:59:52,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114651 to 114647. [2023-12-21 21:59:52,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114647 states, 105100 states have (on average 1.2135490009514749) internal successors, (127544), 106480 states have internal predecessors, (127544), 3977 states have call successors, (3977), 3329 states have call predecessors, (3977), 5568 states have return successors, (7035), 4839 states have call predecessors, (7035), 3975 states have call successors, (7035) [2023-12-21 21:59:52,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114647 states to 114647 states and 138556 transitions. [2023-12-21 21:59:52,684 INFO L78 Accepts]: Start accepts. Automaton has 114647 states and 138556 transitions. Word has length 174 [2023-12-21 21:59:52,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:59:52,684 INFO L495 AbstractCegarLoop]: Abstraction has 114647 states and 138556 transitions. [2023-12-21 21:59:52,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 21:59:52,684 INFO L276 IsEmpty]: Start isEmpty. Operand 114647 states and 138556 transitions. [2023-12-21 21:59:52,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-21 21:59:52,718 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:59:52,718 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:59:52,721 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 (33)] Ended with exit code 0 [2023-12-21 21:59:52,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:52,922 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:59:52,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:59:52,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1149462630, now seen corresponding path program 1 times [2023-12-21 21:59:52,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:59:52,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [249303835] [2023-12-21 21:59:52,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:59:52,923 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:59:52,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:59:52,923 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:59:52,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-21 21:59:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:59:53,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:59:53,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:53,069 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-21 21:59:53,070 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:53,070 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:53,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [249303835] [2023-12-21 21:59:53,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [249303835] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:53,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:53,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:59:53,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825068572] [2023-12-21 21:59:53,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:53,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:59:53,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:53,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:59:53,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:59:53,071 INFO L87 Difference]: Start difference. First operand 114647 states and 138556 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 21:59:57,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:59:57,543 INFO L93 Difference]: Finished difference Result 227155 states and 273127 transitions. [2023-12-21 21:59:57,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:59:57,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 174 [2023-12-21 21:59:57,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:59:57,898 INFO L225 Difference]: With dead ends: 227155 [2023-12-21 21:59:57,898 INFO L226 Difference]: Without dead ends: 114643 [2023-12-21 21:59:57,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:59:57,999 INFO L413 NwaCegarLoop]: 4228 mSDtfsCounter, 286 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 8185 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:59:57,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 8185 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:59:58,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114643 states. [2023-12-21 22:00:02,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114643 to 114643. [2023-12-21 22:00:02,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114643 states, 105099 states have (on average 1.2135415179973168) internal successors, (127542), 106478 states have internal predecessors, (127542), 3974 states have call successors, (3974), 3329 states have call predecessors, (3974), 5568 states have return successors, (7032), 4836 states have call predecessors, (7032), 3972 states have call successors, (7032) [2023-12-21 22:00:02,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114643 states to 114643 states and 138548 transitions. [2023-12-21 22:00:02,923 INFO L78 Accepts]: Start accepts. Automaton has 114643 states and 138548 transitions. Word has length 174 [2023-12-21 22:00:02,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:00:02,923 INFO L495 AbstractCegarLoop]: Abstraction has 114643 states and 138548 transitions. [2023-12-21 22:00:02,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:00:02,923 INFO L276 IsEmpty]: Start isEmpty. Operand 114643 states and 138548 transitions. [2023-12-21 22:00:03,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-21 22:00:03,131 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:00:03,131 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:00:03,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2023-12-21 22:00:03,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:00:03,331 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:00:03,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:00:03,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1998572557, now seen corresponding path program 1 times [2023-12-21 22:00:03,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:00:03,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1813461165] [2023-12-21 22:00:03,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:00:03,332 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:00:03,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:00:03,333 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:00:03,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-21 22:00:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:00:03,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:00:03,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:00:03,474 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-21 22:00:03,475 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:00:03,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:00:03,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1813461165] [2023-12-21 22:00:03,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1813461165] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:00:03,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:00:03,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:00:03,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711581049] [2023-12-21 22:00:03,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:00:03,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:00:03,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:00:03,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:00:03,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:00:03,476 INFO L87 Difference]: Start difference. First operand 114643 states and 138548 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 22:00:11,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:00:11,208 INFO L93 Difference]: Finished difference Result 317521 states and 381652 transitions. [2023-12-21 22:00:11,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:00:11,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 176 [2023-12-21 22:00:11,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:00:11,653 INFO L225 Difference]: With dead ends: 317521 [2023-12-21 22:00:11,653 INFO L226 Difference]: Without dead ends: 160207 [2023-12-21 22:00:11,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:00:11,765 INFO L413 NwaCegarLoop]: 4458 mSDtfsCounter, 234 mSDsluCounter, 4221 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 8679 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:00:11,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 8679 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:00:11,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160207 states. [2023-12-21 22:00:18,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160207 to 160207. [2023-12-21 22:00:18,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160207 states, 146727 states have (on average 1.2070239287929283) internal successors, (177103), 148570 states have internal predecessors, (177103), 5702 states have call successors, (5702), 4737 states have call predecessors, (5702), 7776 states have return successors, (10162), 6900 states have call predecessors, (10162), 5700 states have call successors, (10162) [2023-12-21 22:00:18,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160207 states to 160207 states and 192967 transitions. [2023-12-21 22:00:18,952 INFO L78 Accepts]: Start accepts. Automaton has 160207 states and 192967 transitions. Word has length 176 [2023-12-21 22:00:18,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:00:18,953 INFO L495 AbstractCegarLoop]: Abstraction has 160207 states and 192967 transitions. [2023-12-21 22:00:18,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 22:00:18,953 INFO L276 IsEmpty]: Start isEmpty. Operand 160207 states and 192967 transitions. [2023-12-21 22:00:19,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-12-21 22:00:19,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:00:19,007 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:00:19,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2023-12-21 22:00:19,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:00:19,212 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:00:19,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:00:19,213 INFO L85 PathProgramCache]: Analyzing trace with hash -525951686, now seen corresponding path program 1 times [2023-12-21 22:00:19,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:00:19,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [243995487] [2023-12-21 22:00:19,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:00:19,213 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:00:19,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:00:19,214 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:00:19,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-21 22:00:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:00:19,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:00:19,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:00:19,507 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-21 22:00:19,508 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:00:19,508 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:00:19,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [243995487] [2023-12-21 22:00:19,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [243995487] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:00:19,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:00:19,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 22:00:19,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838451322] [2023-12-21 22:00:19,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:00:19,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:00:19,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:00:19,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:00:19,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:00:19,509 INFO L87 Difference]: Start difference. First operand 160207 states and 192967 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10)